Description

The LTC1541CS8 is a micropower amplifier, comparator, and bandgap reference combined in an 8-pin package. It can operate from a single 2.5V to 12.6V supply or a dual ±1.25V to ±6.3V supply. The typical supply current is 5µA. The op amp and comparator have a common mode input voltage range that extends from the negative supply to within 1.3V of the positive supply. The op amp output swings from rail-to-rail, while the comparator's inverting input is internally connected to the reference output.

Specifications and Features

- Quiescent Current: 5µA Typ

- Outputs Swing Rail-to-Rail

- Low Op Amp Offset Voltage: 700µV Max

- Reference Output Drives 0.01µF Capacitor

- Internal 1.2V ±0.4% Reference Output

- Low Input Bias Current: 1nA Max

- Reference Output Can Source Up to 2mA

- Internal ±3mV Comparator Hysteresis

- Comparator and Op Amp Input Range Includes Ground

- Op Amp Capable of Driving Up to 1000pF Load

- Unity-Gain Stable and 12kHz Bandwidth

- 2.5V to 12.6V Supply Voltage Range

- Pin Compatible Upgrade for MAX951

Application Scenarios

- Battery- or Solar-Powered Systems

- Automotive Keyless Entry

- Low Frequency, Local Area Alarms/Detectors

- Infrared Receivers for Remote Controls

- Smoke Detectors and Safety Sensors

- GSM Portable Phones