MAX478CPA

Product Summary

The MAX478CPA is a dual and quad micropower, precision op amp available in 8-pin and 14-pin DIP and small-outline packages, respectively. Both devices feature an extremely low, 17μA max supply current per op amp, 70μV max offset voltage, 2.2μV/°C max offset voltage drift (0.5μV/°C typ), and 250pA max input offset current. The MAX478CPA operates from a single supply. The input voltage range includes ground, and the output swings to within a few millivolts of ground, which eliminates pull-down resistors and saves power. Applications are (1)Battery- or solar-powered systems: portable instrumentation; remote sensor amplifier; satellite circuitry; (2)Micropower sample-and-hold; (3)Thermocouple amplifier; (4)Micropower filters; (5)Single lithium cell powered systems.

Parametrics

MAX478CPA absolute maximum ratings: (1)Supply Voltage: ±22V; (2)Differential Input Voltage: ±30V; (3)Input Voltage: Equal to Positive Supply Voltage 5V Below Negative Supply Voltage; (4)Output Short-Circuit Duration.: Continuous; (5)Continuous Power Dissipation (TA = +70°C): 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C): 727mW; (6)Continuous Power Dissipation (TA = +70°C): 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C): 800mW; (7)Continuous Power Dissipation (TA = +70°C): 14-Pin Wide SO (derate 9.52mW/°C above +70°C): 762mW; (8)Operating Temperature Ranges: MAX47_ACP_/C_ _: 0°C to +70°C; (9)Operating Temperature Ranges: MAX47_E_ _: -40°C to +85°C; (10)Storage Temperature Range: -65°C to +150°C; (11)Lead Temperature (soldering, 10sec): +300°C.

Features

MAX478CPA features: (1)17μA Max Supply Current (MAX478A/MAX479A); (2)70μV Max Offset Voltage (MAX478A); (3)Single-Supply Operation: Input Voltage Range Includes Ground Output Swings to Ground While Sinking Current No Pull-Down Resistors Required; (4)Dual Op Amp in 8-Pin DIP/SO Package; Quad Op Amp in 14-Pin DIP/SO Package; (5)250pA Max Input Offset Current; (6)0.5μV/°C Offset-Voltage Drift; (7)Output Sources and Sinks 5mA Load Current.

Diagrams