The OPA182 is a 36V, 5MHz, Single, Low Noise, Zero Drift, Multiplexer Friendly Precision Operational Amplifier

 

The OPA182, OPA2182, and OPA4182 are the AQY214EHAX precision operational amplifiers in ultralow noise, fast settling, zero-drift devices that provide rail-to-rail output operation with a unique MUX-friendly architecture and controlled startup system. These features and excellent AC performance, combined with an offset voltage of only 0.45 μV and a temperature drift of 0.003 μV/°C, make the OPA182 an excellent choice for data acquisition, battery testing, analog input modules, scales, and any other system requirements High DC accuracy and low noise.

The MUX-friendly input architecture prevents inrush currents when large input differential voltages are applied, improving stable performance in multi-channel systems. Additionally, the controlled startup system rejects any inrush current when the power rails rise, while providing robust ESD protection during shipping, handling and assembly.

The device is specified over a temperature range of –40°C to +125°C.

characteristic:

●Super high precision:

○Zero drift: 0.003 μV/°C

○Ultra-low offset voltage: 4 μV (max)

●Excellent DC accuracy:

○Common mode rejection ratio: 168dB

○ Open loop gain: 170 dB

●Low noise:

○ eN at 1kHz: 5.7nV/√Hz

○0.1Hz to 10Hz Noise: 0.12 μV PP

●Excellent dynamic performance:

○ Gain bandwidth: 5 MHz

○ Slew rate: 10 V/μs

○Fast settling: 10V step, 0.01% in 1.7 μs

●Sturdy design:

○ Multiplexed input

○RFI/EMI filter input

Wide power supply: ±2.25 V to ±18 V, 4.5 V to 36 V

● Quiescent current: 0.85 mA

● Rail-to-rail output

● Input includes negative rail

parameter:

Number of channels (#): 1

Total supply voltage (max) (+5V=5, +/-5V=10): 36

Total Supply Voltage (Min) (+5V=5, +/-5V=10): 4.5

Vos (offset voltage @ 25 C) (max) (mV): 0.004

GBW (typ) (MHz): 5

Features: EMI Hardened, MUX Friendly, Zero Drift

Slew rate (typ) (V/us): 10

Rail-to-rail: go out

Offset Drift (Typical) (uV/C): 0.003

Iq (Typ) (mA) per channel: 0.85

Vn (typ) at 1 kHz (nV/rtHz): 5.7

Operating temperature range (°C): -40 to 105

Input Bias Current (Max) (pA): 350

Architecture: CMOS

THD+N @ 1 kHz (typ.) (%): 0.00008