AMP771ST23-5

AMP771 Low Offset RRO Operational Amplifier April 2007 AMP771 Low Offset RRO Operational Amplifier General Description The AMP771 is Single low noise precision operational amplifiers intended for use in a wide range of applications. The AMP771 can operation in temperature range of –40° to C 125° with low input bias current. AMP771 is characterized to C operate supply voltage range 2.7V to 5V with operating temperature range of −40° to 85° C C. The AMP771is designed for precision, low noise, low voltage, and miniature systems. It provides rail-to-rail output swing into heavy loads. The maximum input offset voltage for the AMP771 is TBD µV at room temperature and the input common mode voltage range includes ground. Key Specification Voltage Range VOS(max) VCM(max) Bandwidth Temperature Range 2.7V < VCC < 5.5V TBDµV 0 to VCC – 0.9V 3.5MHz −40° to 85° C C Features Low Voltage noise Rail-to-rail output Applications Transducer amplifier Instrumentation amplifier Precision current sensing Data acquisition systems Active filters and buffers Sample and hold Portable/Battery Powered electronics Schematic Diagram AMP771ST23-5 +IN 1 5 Vcc Instrumentation Amplifier V1 + R1 VO1 R2 KR2 + R1/a + VOUT GND 2 - R1 GND - -IN 3 4 VOUT V2 + VO2 R2 KR2 VOUT = -K(2a+1)(V1-V2) Figure 1 AMP771 Low Offset RRO Operational Amplifier Figure 2 Application Example circuit 1 V1.0 AMP771 Pin Assignment 1 5 2 3 4 AMP771ST23-5 (Top View) Pin No. 1 2 3 4 5 Pin Name +IN GND -IN VOUT VCC Type I I I O I Description Positive Differential Input Ground Negative Differential Input Positive Output Power Supply Operation Conditions Parameter Power Supply Voltage Operating Temperature Range Symbol VCC TA Min 2.7 -40 Typ Max 5.5 85 Unit V °C Ordering Information Part Number AMP771ST23-5 Package 5-lead SOT23-5 Marking + A771S XYZ + XYZ = assembly and date code V1.0 2