Overview
The OPA827AIDGKT is a low-noise, high-precision, JFET-input operational amplifier produced by Texas Instruments. This device combines outstanding DC precision with excellent AC performance, making it suitable for a wide range of applications. The OPA827 series offers low offset voltage, very low drift over temperature, low-bias current, and very low noise, making it ideal for high source impedance applications and transimpedance applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Noise Density | 4 | nV/√Hz at 1 kHz |
| Input Voltage Noise (0.1 Hz to 10 Hz) | 250 | nVPP |
| Input Bias Current | 10 | pA (Maximum) |
| Input Offset Voltage | 150 | µV (Maximum) |
| Input Offset Drift | 2 | µV/°C (Maximum) |
| Gain Bandwidth Product | 22 | MHz |
| Slew Rate | 28 | V/µs |
| Quiescent Current | 4.8 | mA/Ch |
| Supply Voltage Range | ±4 V to ±18 V | |
| Operating Temperature Range | –40°C to 125°C | |
| Package Types | 8-Pin SOIC, 8-Pin VSSOP |
Key Features
- Low input offset voltage (150 µV, maximum) and very low drift over temperature (0.5 µV/°C, typical)
- Very low input bias current (3 pA, typical)
- Low noise performance (4 nV/√Hz at 1 kHz and 250 nVPP from 0.1 Hz to 10 Hz)
- High gain bandwidth product (22 MHz) and slew rate (28 V/µs)
- Wide supply voltage range (±4 V to ±18 V) with low quiescent current (4.8 mA/Ch, typical)
- Available in 8-pin SOIC and 8-pin VSSOP surface-mount packages
- High impedance inputs, ideal for high source impedance and transimpedance applications
Applications
- ADC Drivers
- DAC Output Buffers
- Test Equipment
- Medical Equipment
- PLL Filters
- Seismic Applications
- Transimpedance Amplifiers
- Integrators
- Active Filters
- 16-bit to 18-bit mixed signal systems
- Precision ±10-V front ends
- Professional audio applications
Q & A
- What is the input voltage noise density of the OPA827 at 1 kHz?
4 nV/√Hz at 1 kHz.
- What is the maximum input offset voltage of the OPA827?
150 µV.
- What is the typical input bias current of the OPA827?
3 pA.
- What is the gain bandwidth product of the OPA827?
22 MHz.
- What is the slew rate of the OPA827?
28 V/µs.
- What is the quiescent current of the OPA827 per channel?
4.8 mA/Ch.
- What is the operating temperature range of the OPA827?
–40°C to 125°C.
- In what packages is the OPA827 available?
8-Pin SOIC and 8-Pin VSSOP.
- What are some typical applications of the OPA827?
ADC Drivers, DAC Output Buffers, Test Equipment, Medical Equipment, PLL Filters, Seismic Applications, Transimpedance Amplifiers, Integrators, Active Filters, and professional audio applications.
- What is the supply voltage range for the OPA827?
±4 V to ±18 V.
