AS1713 Operational Amplifier IC
Difference Amplifier, 10MHz, 10V/μs, Rail-to-Rail I/O with Shutdown
Description
The AS1713 is a low cost CMOS difference amplifier providing extended common mode voltage range for a single rail 5V supply. Resistor trimming during final test ensures a typical common mode rejection of 60dB. Low input bias currents, 10MHz gain bandwidth, low total harmonic distortion (THD) and a rail-to-rail output drive capability of typically 200mA (@ 5V supply) provide support for a number of signal processing applications such as audio line receivers, ground loop breakers and current sensing. Linearity is suitable for 12-bit ADC measurement.
A classical single amplifier approach ensures that the differential gain is determined by a simple ratio of two internal resistors. A fixed gain of x1 is available.
Single ended input resistance is equalized (10kΩ ±10%) at each input terminal. This feature provides additional common mode rejection when long balanced input cables connect at the input.
A EN pin reduces the quiescent current of the device.
Key Features
- Constant Output Drive Capability: 50mA
- Rail-to-Rail Input and Output
- Supply Current: 1.6mA
- Single-Supply Operation: 2.7 to 5.5V
- Voltage Gain: 1
- Gain-Bandwidth Product: 10MHz
- High Slew Rate: 10V/μs
- Power-Supply Rejection Ratio: -70dB
- Common Mode Rejection Ratio: -60dB
- No Phase Reversal for Overdriven Inputs
- Unity-Gain Stable for Capacitive Loads: Up to 100pF
- Shutdown Mode Current: 1nA
- MLPD (2x2mm) 8-pin package
Applications
The device is ideal for headphone amplifiers with ground interference rejection, infotainment high drive audio line buffers with ground interference rejection, audio differential-to-single-ended conversion and instrumentation amplifier back-end.
