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ICL7621, ICL7641, ICL7642
Data Sheet April 1999 File Number
3403.3
Dual/Quad, Low Power CMOS Operational Amplifiers
The ICL761X/762X/764X series is a family of monolithic CMOS operational amplifiers. These devices provide the designer with high performance operation at low supply voltages and selectable quiescent currents. They are an ideal design tool when ultra low input current and low power dissipation are desired. The basic amplifier will operate at supply voltages ranging from ±1V to ±8V, and may be operated from a single Lithium cell. The output swing ranges to within a few millivolts of the supply voltages. The quiescent supply current of these amplifiers is set to 3 different ranges at the factory. Both amps of the dual ICL7621 are set to an IQ of 100µA, while each amplifier of the quad ICL7641 and ICL7642 are set to an IQ of 1mA and 10µA respectively. This results in power consumption as low as 20µW per amplifier. Of particular significance is the extremely low (1pA) input current, input noise current of 0.01pA/Hz, and 1012 input impedance. These features optimize performance in very high source impedance applications. The inputs are internally protected. Outputs are fully protected against short circuits to ground or to either supply. AC performance is excellent, with a slew rate of 1.6V/µs, and unity gain bandwidth of 1MHz at IQ = 1mA. Because of the low power dissipation, junction temperature rise and drift are quite low. Applications utilizing these features may include stable instruments, extended life designs, or high density packages.
Features
· Wide Operating Voltage Range . . . . . . . . . . . ±1V to ±8V · High Input Impedance . . . . . . . . . . . . . . . . . . . . . . .1012 · Input Current Lower Than BIFETs . . . . . . . . . . . 1pA (Typ) · Output Voltage Swing . . . . . . . . . . . . . . . . . . . . V+ and V· Available as Duals and Quads (Refer to ICL7611 for Singles) · Low Power Replacement for Many Standard Op Amps
Applications
· Portable Instruments · Telephone Headsets · Hearing Aid/Microphone Amplifiers · Meter Amplifiers · Medical Instruments · High Impedance Buffers
Pinouts
OUTA -INA +INA V-
ICL7621 (PDIP, SOIC) TOP VIEW
1 + 2 3 4 8 V+ OUTB -INB +INB
-
7
-
6 5
ICL7621 (METAL CAN) TOP VIEW
V+ 8 OUTA 2 1 7 OUTB 6 -INB
+
Ordering Information
TEMP. PART NUMBER RANGE (oC) PACKAGE ICL7621ACPA 0 to 70 8 Ld PDIP A Grade - IQ = 100µA ICL7621BCPA 0 to 70 8 Ld PDIP B Grade - IQ = 100µA ICL7621DCPA 0 to 70 8 Ld PDIP D Grade - IQ = 100µA ICL7621AMTV -55 to 125 8 Pin Metal Can A Grade - IQ = 100µA ICL7621DCBA 0 to 70 8 Ld SOIC D Grade - IQ = 100µA ICL7621DCBA-T 0 to 70 8 Ld SOIC - D Grade Tape and Reel IQ = 100µA ICL7641ECPD 0 to 70 14 Ld PDIP - E Grade IQ = 1mA ICL7642ECPD 0 to 70 14 Ld PDIP - E Grade IQ = 10µA PKG. NO. E8.3 E8.3 E8.3 T8.C M8.15 M8.15
-INA
+INA
3 4 V-
ICL7641 (PDIP), ICL7642 (PDIP) TOP VIEW
OUTA 1 14 OUTD 13 -IND 12 +IND 11 V10 +INC
+INA 3 V+ 4
-INB 6
E14.3
OUTB 7
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
-
E14.3
+INB 5
+
+
-
-
-
-INA 2
+
+
5 +INB 9 -INC 8 OUTC
-
+
+
ICL7621, ICL7641, ICL7642
Absolute Maximum Ratings
Supply Voltage V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . V- -0.3 to V+ +0.3V Differential Input Voltage (Note 1) . . . . . . . . . [(V+ +0.3) - (V- -0.3)]V Duration of Output Short Circuit (Note 2). . . . . . . . . . . . . . Unlimited
Thermal Information
Thermal Resistance (Typical, Note 3) JA (oC/W) JC (oC/W) SOIC Package . . . . . . . . . . . . . . . . . . . 160 N/A Metal Can Package . . . . . . . . . . . . . . . 160 75 8 Lead PDIP Package . . . . . . . . . . . . . 120 N/A 14 Lead PDIP Package . . . . . . . . . . . . 80 N/A Maximum Junction Temperature (Hermetic Packages). . . . . . . .175oC Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only)
Operating Conditions
Temperature Range ICL76XXM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC ICL76XXC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES: 1. Long term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time. 2. The outputs may be shorted to ground or to either supply, for VSUPPLY 10V. Care must be taken to insure that the dissipation rating is not exceeded. 3. JA is measured with the component mounted on an evaluation PC board in free air. Electrical Specifications VSUPPLY = ±5V, Unless Otherwise Specified SYMBOL VOS TEST CONDITIONS RS 100k TEMP. (oC) 25
Full
ICL7621A
ICL7621B
ICL7621D TYP 25 0.5 MAX 15 20 30 300 800 1.0 102 0.48 1012 91 86 50 400 4000 UNITS mV mV µV/oC pA pA pA pA pA pA V V V V dB dB dB MHz dB dB
PARAMETER Input Offset Voltage
MIN TYP MAX MIN TYP MAX MIN ±4.2 ±4.9 ±4.8 86 80 74 76 80 10 0.5 1.0 102 0.48 1012 91 86 2 3 30 300 800 50 400 4000 ±4.2 ±4.9 ±4.8 ±4.5 80 75 68 70 80 1.0 102 0.48 1012 91 86 15 0.5 5 7 30 300 800 50 400 4000 ±4.2 ±4.9 ±4.8 ±4.5 80 75 68 70 80
Temperature Coefficient of VOS Input Offset Current
VOS/T RS 100k IOS
25 0 to 70 -55 to 125
Input Bias Current
IBIAS
25 0 to 70 -55 to 125
Common Mode Voltage Range Output Voltage Swing
VCMR VOUT
IQ = 100µA IQ = 100µA, RL = 100k
25 25 0 to 70
-55 to 125 ±4.5 Large Signal Voltage Gain AVOL VO = ±4.0V, RL = 100k , IQ = 100µA IQ = 100µA RS 100k, IQ = 100µA RS 100k, IQ = 100µA RS = 100, f = 1kHz RS = 100, f = 1kHz No Signal, No Load, IQ = 100µA 25 0 to 70 -55 to 125 25 25 25 25
Unity Gain Bandwidth Input Resistance Common Mode Rejection Ratio Power Supply Rejection Ratio (VSUPPLY = ±8V to ±2V) Input Referred Noise Voltage Input Referred Noise Current Supply Current (Per Amplifier)
GBW RIN CMRR PSRR
eN iN ISUPPLY
25 25 25
-
100 0.01 0.1
0.25
-
100 0.01 0.1
0.25
-
100 0.01 0.1
0.25
nV/Hz pA/Hz mA
2
ICL7621, ICL7641, ICL7642
Electrical Specifications VSUPPLY = ±5V, Unless Otherwise Specified (Continued) SYMBOL TEST CONDITIONS TEMP. (oC) 25 25 ICL7621A ICL7621B ICL7621D TYP 120 0.16 MAX UNITS dB V/µs MIN TYP MAX MIN TYP MAX MIN 120 0.16 120 0.16 -
PARAMETER Channel Separation Slew Rate
VO1/VO2 AV = 100 SR AV = 1, CL = 100pF, VIN = 8VP-P, IQ = 100µA, RL = 100k VIN = 50mV, CL = 100pF, IQ = 100µA, RL = 100k VIN = 50mV, CL = 100pF, IQ = 100µA, RL = 100k
Rise Time
tR
25
-
2
-
-
2
-
-
2
-
µs
Overshoot Factor
OS
25
-
10
-
-
10
-
-
10
-
%
Electrical Specifications
PARAMETER Input Offset Voltage
VSUPPLY = ±5V, Unless Otherwise Specified TEST CONDITIONS RS 100k RS 100k TEMP. (oC) 25 Full ICL7641E, ICL7642E MIN ±4.4 ±3.7 ±4.9 ±4.8 ±4.7 ±4.5 ±4.3 ±4.0 80 75 68 76 72 68 70 60 80 70 1.0 104 98 0.044 1.4 1012 96 87 94 77 TYP 30 0.5 MAX 20 25 30 300 800 50 500 4000 UNITS mV mV µV/oC pA pA pA pA pA pA V V V V V V V V dB dB dB dB dB dB MHz MHz dB dB dB dB
SYMBOL VOS VOS/T IOS
Temperature Coefficient of VOS Input Offset Current
25 0 to 70 -55 to 125
Input Bias Current
IBIAS
25 0 to 70 -55 to 125
Common Mode Voltage Range
VCMR VOUT
IQ = 10µA, ICL7642 IQ = 1mA, ICL7641 ICL7642, IQ = 10µA, RL = 1M
25 25 25 0 to 70 -55 to 125
Output Voltage Swing
ICL7641, IQ = 1mA, RL = 10k
25 0 to 70 -55 to 125
Large Signal Voltage Gain
AVOL
ICL7642, VO = ±4V, RL = 1M , IQ = 10µA
25 0 to 70 -55 to 125
ICL7641, VO = ±4V, RL = 10k, IQ = 1mA
25 0 to 70 -55 to 125
Unity Gain Bandwidth
GBW
ICL 7642, IQ = 10µA ICL 7641, IQ = 1mA
25 25 25
Input Resistance Common Mode Rejection Ratio
RIN CMRR ICL7642, RS 100k, IQ = 10µA ICL7641, RS 100k, IQ = 1mA ICL7642, RS 100k, IQ = 10µA ICL7641, RS 100k, IQ = 1mA
25 25 25 25
Power Supply Rejection Ratio (VSUPPLY = ±8V to ±2V)
PSRR
3
ICL7621, ICL7641, ICL7642
Electrical Specifications
PARAMETER Input Referred Noise Voltage Input Referred Noise Current Supply Current (Per Amplifier) (No Signal, No Load) Channel Separation Slew Rate (AV = 1, CL = 100pF, VIN = 8VP-P) Rise Time (VIN = 50mV, CL = 100pF) Overshoot Factor (VIN = 50mV, CL = 100pF) VSUPPLY = ±5V, Unless Otherwise Specified (Continued) TEST CONDITIONS RS = 100, f = 1kHz RS = 100, f = 1kHz ICL7642, IQ = 10µA Low Bias ICL7641, IQ = 1mA High Bias VO1/VO2 SR AV = 100 ICL7642, IQ = 10µA, RL = 1M ICL7641, IQ = 1mA, RL = 10k tR OS ICL7642, IQ = 10µA, RL = 1M ICL7641, IQ = 1mA, RL = 10k ICL7642, IQ = 10µA, RL = 1M ICL7641, IQ = 1mA, RL = 10k TEMP. (oC) 25 25 25 25 25 25 25 25 25 25 25 ICL7641E, ICL7642E MIN TYP 100 0.01 0.01 1.0 120 0.016 1.6 20 0.9 5 40 MAX 0.03 2.5 UNITS nV/Hz pA/Hz mA mA dB V/µs V/µs µs µs % %
SYMBOL eN iN ISUPPLY
Schematic Diagram
IQ INPUT STAGE SETTING STAGE OUTPUT STAGE V+
3K
3K
900K QP5 100K
A C VQP6 QP4 QP9 QP7 QP8 6.3V
QP1 V+ +INPUT QN1
QP2
QP3
QN2
CFF = 9pF OUTPUT CC = 33pF
VV+
-INPUT QN7 VQN3 QN8 QN4 QN5 V+ E G VQN6 QN9 QN10 6.3V QN11
TABLE OF JUMPERS ICL7621 ICL7641 ICL7642 C, E C, G A, E
IQ 100µA 1mA 10µA
Application Information
Static Protection
All devices are static protected by the use of input diodes. However, strong static fields should be avoided, as it is possible for the strong fields to cause degraded diode junction characteristics, which may result in increased input leakage currents. 4-layer structure has characteristics similar to an SCR, and under certain circumstances may be triggered into a low impedance state resulting in excessive supply current. To avoid this condition, no voltage greater than 0.3V beyond the supply rails may be applied to any pin. In general, the op amp supplies must be established simultaneously with, or before any input signals are applied. If this is not possible, the drive circuits must limit input current flow to 2mA to prevent latchup.
Latchup Avoidance
Junction-isolated CMOS circuits employ configurations which produce a parasitic 4-layer (PNPN) structure. The
4
ICL7621, ICL7641, ICL7642
Choosing the Proper IQ
Each device in the ICL76XX family has a similar IQ setup scheme, which allows the amplifier to be set to nominal quiescent currents of 10µA, 100µA or 1mA. These current settings change only very slightly over the entire supply voltage range. The ICL7611/12 have an external IQ control terminal, permitting user selection of each amplifiers' quiescent current. The ICL7621 and ICL7641/7642 have fixed IQ settings: ICL7621 (Dual) - IQ = 100µA ICL7641 (Quad) - IQ = 1mA ICL7642 (Quad) - IQ = 10µA NOTE: The output current available is a function of the quiescent current setting. For maximum peak-to-peak output voltage swings into low impedance loads, IQ of 1mA should be selected. Typical Operating Characteristics). During the transition from Class A to Class B operation, the output transfer characteristic is nonlinear and the voltage gain decreases.
Frequency Compensation
The ICL76XX are internally compensated, and are stable for closed loop gains as low as unity with capacitive loads up to 100pF.
Operation At VSUPPLY = ±1V
Operation at VSUPPLY = ±1V is guaranteed for the ICL7642C only. Output swings to within a few millivolts of the supply rails are achievable for RL 1M. Guaranteed input CMVR is ±0.6V minimum and typically +0.9V to -0.7V at VSUPPLY = ±1V. For applications where greater common mode range is desirable, refer to the ICL7612 data sheet.
Typical Applications
The user is cautioned that, due to extremely high input impedances, care must be exercised in layout, construction, board cleanliness, and supply filtering to avoid hum and noise pickup. Note that in no case is IQ shown. The value of IQ must be chosen by the designer with regard to frequency response and power dissipation.
Output Stage and Load Driving Considerations
Each amplifiers' quiescent current flows primarily in the output stage. This is approximately 70% of the IQ settings. This allows output swings to almost the supply rails for output loads of 1M, 100k, and 10k, using the output stage in a highly linear class A mode. In this mode, crossover distortion is avoided and the voltage gain is maximized. However, the output stage can also be operated in Class AB for higher output currents. (See graphs under
VIN ICL76XX VOUT
+5 + VIN 100k
+5
+
ICL76XX VOUT TO CMOS OR LPTTL LOGIC
RL 10k
1M
FIGURE 1. SIMPLE FOLLOWER
FIGURE 2. LEVEL DETECTOR
1/2 ICL7621 1µF + +
1M
1/2 ICL7621 +
1M
ICL76XX + VOUT
1M VV+ DUTY CYCLE 680k WAVEFORM GENERATOR
NOTE: Low leakage currents allow integration times up to several hours. FIGURE 3. PHOTOCURRENT INTEGRATOR
NOTE: Since the output range swings exactly from rail to rail, frequency and duty cycle are virtually independent of power supply variations. FIGURE 4. TRIANGLE/SQUARE WAVE GENERATOR
5
ICL7621, ICL7641, ICL7642
1M VOH 0.5µF VIN 10k 2.2M + 1/2 ICL7621 20k
TO SUCCEEDING INPUT STAGE
+8V
10µF 1.8k = 5% SCALE ADJUST
+ V+ OUT
TA = 125oC
20k
-
VOL
-
V-
COMMON
1/2 ICL7621 +
-
V+ -8V
FIGURE 5. AVERAGING AC TO DC CONVERTER FOR A/D CONVERTERS SUCH AS ICL7106, ICL7107, ICL7109, ICL7116, ICL7117
0.2µF
FIGURE 6. BURN-IN AND LIFE TEST CIRCUIT
0.2µF
0.2µF
30k
160k
+ 1/2 ICL7621
680k
100k
51k + 1/2 ICL7621
360k INPUT 0.1µF 0.2µF 0.1µF
1M OUTPUT 1M NOTE 4
360k
NOTE 4
NOTES: 4. Small capacitors (25 - 50pF) may be needed for stability in some cases. 5. The low bias currents permit high resistance and low capacitance values to be used to achieve low frequency cutoff. fC = 10Hz, AVCL = 4, Passband ripple = 0.1dB. FIGURE 7. FIFTH ORDER CHEBYCHEV MULTIPLE FEEDBACK LOW PASS FILTER
Typical Performance Curves
10K TA = 25oC NO LOAD NO SIGNAL 104 IQ = 1mA SUPPLY CURRENT (µA) 103 V+ - V- = 10V NO LOAD NO SIGNAL IQ = 1mA
SUPPLY CURRENT (µA)
1K IQ = 100µA 100
102
IQ = 100µA
IIQ = 10µA Q = 1mA 10
10
IQ = 10µA
1
0
2
4
6 8 10 SUPPLY VOLTAGE (V)
12
14
16
1 -50
-25
0 25 50 75 FREE-AIR TEMPERATURE (oC)
100
125
FIGURE 8. SUPPLY CURRENT PER AMPLIFIER vs SUPPLY VOLTAGE
FIGURE 9. SUPPLY CURRENT PER AMPLIFIER vs FREE-AIR TEMPERATURE
6
ICL7621, ICL7641, ICL7642 Typical Performance Curves
1000 DIFFERENTIAL VOLTAGE GAIN (kV/V) VS = ±5V INPUT BIAS CURRENT (pA)
(Continued)
1000 VSUPPLY = 10V VOUT = 8V RL = 1M IQ = 10µA RL = 100k IQ = 100µA
100
100
10
RL = 10k IQ = 1mA
10
1.0
0.1 -50
-25
0 25 50 75 FREE-AIR TEMPERATURE (oC)
100
125
1 -75
-50
-25
0
25
50
75
100
125
FREE-AIR TEMPERATURE (oC)
FIGURE 10. INPUT BIAS CURRENT vs TEMPERATURE
FIGURE 11. LARGE SIGNAL DIFFERENTIAL VOLTAGE GAIN vs FREE-AIR TEMPERATURE
COMMON MODE REJECTION RATIO (dB)
107 DIFFERENTIAL VOLTAGE GAIN (V/V) 106 105 PHASE SHIFT (DEGREES) 104 103 102 10 1 0.1 IQ = 100µA IQ = 1mA 0 45 PHASE SHIFT (IQ = 1mA) IQ = 10µA 90 135 180 1M TA = 25oC VSUPPLY = 15V
105 VSUPPLY = 10V 100 IQ = 10µA 95 IQ = 100µA 90 85 80 75 70 -75 IQ = 1mA
1.0
10
100 1K 10K FREQUENCY (Hz)
100K
-50
-25
0
25
50
75
100
125
FREE-AIR TEMPERATURE (oC)
FIGURE 12. LARGE SIGNAL FREQUENCY RESPONSE
FIGURE 13. COMMON MODE REJECTION RATIO vs FREE-AIR TEMPERATURE
EQUIVALENT INPUT NOISE VOLTAGE (nV/Hz)
SUPPLY VOLTAGE REJECTION RATIO (dB)
100 IQ = 1mA 95 90 85 80 75 70 65 -75 IQ = 100µA IQ = 10µA VSUPPLY = 10V
600 500 400 300 200 100 0 10 100 1K FREQUENCY (Hz) 10K 100K TA = 25oC 3V VSUPPLY 16V
-50
-25
0
25
50
75
100
125
FREE-AIR TEMPERATURE (oC)
FIGURE 14. POWER SUPPLY REJECTION RATIO vs FREE-AIR TEMPERATURE
FIGURE 15. EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY
7
ICL7621, ICL7641, ICL7642 Typical Performance Curves
16 14 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (VP-P) 12 10 8 6 4 2 0 100 VSUPPLY = ±2V 1K 10K 100K FREQUENCY (Hz) 1M 10M VSUPPLY = ±5V VSUPPLY = ±8V TA = 25oC IQ = 10µA IQ = 100µA MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (VP-P) IQ = 1mA
(Continued)
16 14 12 10 8 6 4 2 0 10K 100K 1M FREQUENCY (Hz) 10M TA = -55oC TA = 25oC TA = 125oC VSUPPLY = 10V IQ = 1mA
FIGURE 16. OUTPUT VOLTAGE vs FREQUENCY
FIGURE 17. OUTPUT VOLTAGE vs FREQUENCY
16 TA = 25oC 14 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (VP-P) 12 10 8 6 4 RL = 100k - 1M RL = 10k MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (VP-P)
12 10 8 6 4 2 0 -75 VSUPPLY = 10V IQ = 1mA RL = 100k
RL = 10k
RL = 2k
2
4
6
8 10 12 SUPPLY VOLTAGE (V)
14
16
-50
-25
0
25
50
75
100
125
FREE-AIR TEMPERATURE (oC)
FIGURE 18. OUTPUT VOLTAGE vs SUPPLY VOLTAGE
FIGURE 19. OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE
MAXIMUM OUTPUT SOURCE CURRENT (mA)
IQ = 1mA 30
MAXIMUM OUTPUT SINK CURRENT (mA)
40
0.01
IQ = 10µA 0.1
20
IQ = 100µA 1.0
10
IQ = 1mA 10 0 2 4 6 8 10 12 14 16 SUPPLY VOLTAGE (V)
0 0 2 4 6 8 10 12 14 16 SUPPLY VOLTAGE (V)
FIGURE 20. OUTPUT SOURCE CURRENT vs SUPPLY VOLTAGE
FIGURE 21. OUTPUT SINK CURRENT vs SUPPLY VOLTAGE
8
ICL7621, ICL7641, ICL7642 Typical Performance Curves
16 14 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE (VP-P) 12 10 8 6 4 2 0 0.1 TA = 25oC V+ - V- = 10V IQ = 1mA
(Continued)
8 INPUT AND OUTPUT VOLTAGE (V) 6 4 2 0 -2 INPUT -4 -6 OUTPUT TA = 25oC, VSUPPLY = 10V RL = 10k , CL = 100pF
1.0 10 LOAD RESISTANCE (k)
100
0
2
4 6 TIME (µs)
8
10
12
FIGURE 22. OUTPUT VOLTAGE vs LOAD RESISTANCE
FIGURE 23. VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE (IQ = 1mA)
8 INPUT AND OUTPUT VOLTAGE (V) 6 4 2 OUTPUT 0 -2 INPUT -4 -6 0 20 40 60 80 100 120 TIME (µs) INPUT AND OUTPUT VOLTAGE (V) TA = 25oC, VSUPPLY = 10V RL = 100k, CL = 100pF
8 6 4 2 OUTPUT 0 INPUT -2 -4 -6 TA = 25oC, VSUPPLY = 10V RL = 1M, CL = 100pF
0
200
400
600
800
1000
1200
TIME (µs)
FIGURE 24. VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE (IQ = 100µA)
FIGURE 25. VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE (IQ = 10µA)
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Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
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