1 Features
1• Ultra-low noise: 3 nV/√Hz at 10 kHz
• Low offset voltage: ±25 μV
• Low offset voltage drift: ±0.5 μV/°C
• Low bias current: ±5 pA
• Common-Mode Rejection: 120dB
• Low Noise: 3 nV/√Hz at 10 kHz
• Wide bandwidth: 25-MHz GBW
• Open-loop voltage gain: 154 dB
• High output current: 100 mA
• Rail-to-rail input and output
• High slew rate: 40 V/μs
• Fast settling time: 600 ns (10-V step, 0.01%)
• Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
• Industry standard packages:
– Dual in SOIC-8 and VSSOP-8

2 Applications
• Data acquisition (DAQ)
• Photodiode Transimpedance Amplifiers
• Vibration monitor module
• Analog input module
• High-Resolution ADC Driver Amplifiers
• Medical Equipment

3 Description
The OPA2156 is the first in a planned new generation
of 36-V, rail-to-rail operational amplifiers (op amps).
This devices offers very low offset voltage (±25 μV),
drift (±0.5 μV/°C), and low bias current (±5 pA)
combined with very low broadband voltage noise (3
nV/√Hz) .
Unique features, such as rail-to-rail input and output
voltage ranges, wide bandwidth (25 MHz) high output
current (100 mA), and high slew rate (40 V/μs) make
the OPA2156 a robust, high-performance operational
amplifier for high-voltage precision industrial
applications.
The OPA2156 op amp is available in 8-pin SOIC and
VSSOP packages and is specified over the industrial
temperature range of –40°C to +125°C.