Overview
The OPA2156IDGKR is a high-performance operational amplifier (op amp) produced by Texas Instruments. It is part of a new generation of 36-V, rail-to-rail operational amplifiers designed for high-voltage precision industrial applications. This device is notable for its ultra-low noise, wide bandwidth, and high output current capabilities. The OPA2156IDGKR features a three-gain-stage architecture, including a low-noise input stage and a high-current output stage, which ensures superior distortion performance under various loading conditions. It is available in 8-pin SOIC and VSSOP packages and is specified over the industrial temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 4.5 (±2.25) | - | 36 (±18) | V |
| Offset Voltage | - | ±25 µV | - | µV |
| Offset Voltage Drift | - | ±0.5 µV/°C | - | µV/°C |
| Bias Current | - | ±5 pA | - | pA |
| Common-Mode Rejection Ratio (CMRR) | 100 | - | 120 dB | dB |
| Voltage Noise Density at 10 kHz | - | 3 nV/√Hz | - | nV/√Hz |
| Unity Gain Bandwidth (GBW) | - | 25 MHz | - | MHz |
| Slew Rate | - | 40 V/µs | - | V/µs |
| Output Current | - | 100 mA | - | mA |
| Operating Temperature Range | -40°C | - | +125°C | °C |
Key Features
- 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
- High common-mode rejection ratio: 120 dB
- Rail-to-rail input and output voltage ranges
- Wide bandwidth: 25 MHz
- High output current: 100 mA
- High slew rate: 40 V/µs
- Fast settling time: 600 ns (10-V step, 0.01%)
- Internal phase-reversal protection
- Electrical overstress protection with ESD circuits
Applications
- Data acquisition (DAQ)
- Photodiode Transimpedance Amplifiers
- Vibration monitor module
- Analog input module
- High-Resolution ADC Driver Amplifiers
- Medical Equipment
Q & A
- What is the typical offset voltage of the OPA2156IDGKR?
The typical offset voltage is ±25 µV.
- What is the common-mode rejection ratio (CMRR) of the OPA2156IDGKR?
The CMRR is up to 120 dB.
- What is the unity gain bandwidth (GBW) of the OPA2156IDGKR?
The GBW is 25 MHz).
- What is the slew rate of the OPA2156IDGKR?
The slew rate is 40 V/µs).
- What is the maximum output current of the OPA2156IDGKR?
The maximum output current is 100 mA).
- What are the typical applications of the OPA2156IDGKR?
Typical applications include data acquisition, photodiode transimpedance amplifiers, vibration monitor modules, analog input modules, high-resolution ADC driver amplifiers, and medical equipment).
- What is the operating temperature range of the OPA2156IDGKR?
The operating temperature range is –40°C to +125°C).
- Does the OPA2156IDGKR have internal phase-reversal protection?
- What kind of ESD protection does the OPA2156IDGKR have?
The OPA2156IDGKR has internal electrostatic discharge (ESD) protection circuits).
- In what packages is the OPA2156IDGKR available?
The OPA2156IDGKR is available in 8-pin SOIC and VSSOP packages).
