L291.pdf | | L291
5 BIT - D/A CONVERTER AND POSITION AMPLIFIER
5 BI T D/A CONVERT ER (1/2 LSB MAX LINEARITY ERROR); ERROR AMPLIFIER; POSITION AMPLIFIER. DESCRIPTION The L291, a monolithic LSI circuit in a 16-lead dual in-line plastic package, is intended for use with the L290 and L292 to form a complete 3 chip DC motor positioning system for applications such as carriage/daisy-wheel position control in typewriters. The L290/291/292 system can be directly controlled by a microprocessor.
DIP-16 (Plastic 0.25) ORDER CODE : L291B
ABSOLUTE MAXIMUM RATINGS
Symbol Vs Ptot Tstg, Tj Supply Voltage Total Power Dissipation Tamb = 70 °C Storage and Junction Temperature Parameter Value ± 15 1 - 40 to 150 Unit V W °C
SYSTEM BLOCK DIAGRAM
October 1991
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L291
CONNECTION DIAGRAM (top view)
BLOCK DIAGRAM
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L291
TEST CIRCUIT
THERMAL DATA
Symbol R th-j-amb Parameter Thermal resistance junction-ambient Max Value 80 Unit °C/W
ELECTRICAL CHARACTERISTICS (refer to the circuit, S1 and S2 in (a), Vs = ± 12 V, |