Overview
The OPA828IDR, produced by Texas Instruments, is a high-performance, low-offset, low-drift, and low-noise operational amplifier. It is part of the OPAx828 family, which includes the OPA828 and OPA2828 models. These amplifiers are designed to combine high speed with high DC precision and AC performance, making them ideal for various high-speed and high-resolution applications. The OPA828IDR is particularly suited for systems requiring low noise, low offset voltage, and low drift over temperature, along with high gain bandwidth and slew rate.
Key Specifications
| Parameter | Test Conditions | Typical Value | Unit |
|---|---|---|---|
| Input Offset Voltage (VOS) | D package: TA = 0°C to 85°C | ±50 | µV |
| Input Offset Voltage Drift (dVOS/dT) | TA = 0°C to +85°C | ±0.2 (DGN), ±0.45 (D) | µV/°C |
| Input Bias Current (IB) | D package: TA = 0°C to 85°C | ±1 | pA |
| Input Voltage Noise Density | f = 1 kHz | 4 | nV/√Hz |
| Gain Bandwidth Product (GBW) | 45 | MHz | |
| Slew Rate | 150 | V/μs | |
| Supply Voltage Range | ±4 V to ±18 V | V | |
| Quiescent Current (IQ) | TA = 0°C to 85°C | 5.5 | mA |
| Output Voltage Swing | RL = 10 kΩ | 0.9 to 1.2 | V |
| Output Current | For linear operation | ±30 | mA |
Key Features
- Low Input Voltage Noise: 4 nV/√Hz at 1 kHz and 60 nVRMS from 0.1 Hz to 10 Hz.
- High Precision: Low input offset voltage (±25 µV for DGN package, ±50 µV for D package) and low drift over temperature (±0.2 µV/°C for DGN package, ±0.45 µV/°C for D package).
- Low Input Bias Current: As low as ±0.1 pA for DGN package and ±1 pA for D package.
- High Speed Performance: 45 MHz gain bandwidth product and a slew rate of 150 V/μs.
- Wide Supply Voltage Range: Operates from ±4 V to ±18 V.
- MUX-Friendly Inputs: Suitable for use in multiplexed systems.
- Thermal Enhanced Package: Available in 8-pin SOIC and 8-pin HVSSOP PowerPAD™ integrated circuit packages).
Applications
- Data Acquisition (DAQ): High-speed and high-resolution data-acquisition systems, including 16-bit to 18-bit mixed signal systems.
- Optical Modules: Transimpedance (I/V-conversion) amplifiers and other optical module applications).
- Lab and Field Instrumentation: Precision measurement and instrumentation systems).
- Mixed Modules (AI, AO, DI, DO): Applications requiring a combination of analog and digital inputs and outputs).
- Ultrasound Scanners: High-impedance sensor-interface applications and medical imaging equipment).
Q & A
- What is the typical input offset voltage of the OPA828IDR?
The typical input offset voltage is ±25 µV for the DGN package and ±50 µV for the D package).
- What is the gain bandwidth product (GBW) of the OPA828IDR?
The gain bandwidth product is 45 MHz).
- What is the slew rate of the OPA828IDR?
The slew rate is 150 V/μs).
- What is the input voltage noise density of the OPA828IDR at 1 kHz?
The input voltage noise density is 4 nV/√Hz at 1 kHz).
- What is the supply voltage range for the OPA828IDR?
The supply voltage range is ±4 V to ±18 V).
- What are the typical quiescent current and short-circuit current for the OPA828IDR?
The typical quiescent current is 5.5 mA, and the short-circuit current is ±50 mA).
- In what packages is the OPA828IDR available?
The OPA828IDR is available in 8-pin SOIC and 8-pin HVSSOP PowerPAD™ integrated circuit packages).
- What are some common applications for the OPA828IDR?
Common applications include data acquisition, optical modules, lab and field instrumentation, mixed modules (AI, AO, DI, DO), and ultrasound scanners).
- What is the input bias current of the OPA828IDR?
The input bias current is as low as ±0.1 pA for the DGN package and ±1 pA for the D package).
- How does the OPA828IDR handle capacitive loads?
The OPA828IDR can drive capacitive loads; refer to the typical characteristics curves for specific details).
