AT8557 7.0V 4.3kHz Zero-Drift Low-Power Operational Amplifier
$0.99
Zero-Drift Operational Amplifier
Supply Voltage: 2.7V ~ 5.5V
Bandwidth (GBW): 4.3MHz
Rail-to-Rail I/O, 650µA/Amp
Out of stock
Product Overview
The AT8557 is a zero-drift, rail-to-rail input and output CMOS operational amplifier using auto-zero techniques to provide low offset voltage and near-zero drift over time and temperature. It achieves 20µV typical input offset voltage, 50µV maximum input offset voltage, and 0.003µV/°C typical offset drift.
The AT8557 features a 4.3MHz gain bandwidth product, 2.5V/µs slew rate, 0.93µVP-P low-frequency noise, and 650µA typical quiescent current per amplifier. It is well suited for precision current sensing, thermocouple amplifiers, temperature and pressure sensor amplifiers, strain gauge amplifiers, handheld test equipment, and medical or industrial instrumentation.
Specifications
| Supply Voltage | 2.7V to 5.5V |
| Gain Bandwidth (GBW) | 4.3MHz |
| Input Offset Voltage | 20µV (Typ), 50µV (Max) |
| Input Offset Drift | 0.003µV/°C (Typ), 0.2µV/°C (Max) |
| Quiescent Current | 650µA/Amplifier (Typ) |
| Slew Rate | 2.5V/µs |
| Input Voltage Noise | 0.93µVP-P (0.01Hz to 10Hz) |
| CMRR / PSRR | 120dB (Typ) |
| Input/Output | Rail-to-Rail I/O |
| Package | SOT23-5, MSOP-8, SOIC-8 |
| Operating Temperature | −40°C to +125°C |
| Weight | 0.3 lbs |
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