Overview
The OPA2991SIRUGR, produced by Texas Instruments, is a high-voltage, general-purpose operational amplifier belonging to the OPAx991 family. This device is known for its exceptional DC precision and AC performance, making it suitable for a wide range of high-voltage industrial applications. The OPA2991SIRUGR is available in a 10-pin X2QFN package and operates over a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 0 to 42 | V |
| Differential Input Voltage | Up to 40 | V |
| Input Offset Voltage (Typical) | ±125 | µV |
| Input Offset Drift (Typical) | ±0.3 | µV/°C |
| Noise (Typical) | 10.5 nV/√Hz, 1.8 µVPP | nV/√Hz, µVPP |
| Bandwidth | 4.5 MHz | MHz |
| Slew Rate (Typical) | 21 V/µs | V/µs |
| Output Current (Typical) | ±75 mA | mA |
| Operating Temperature Range | –40 to 125 | °C |
| Package Type | X2QFN-10 (1.5x2) |
Key Features
- Rail-to-rail input/output
- High capacitive load drive (up to 1 nF)
- Shutdown functionality with low current consumption (30 µA in shutdown)
- Differential and common-mode input voltage range to the supply rail
- High slew rate and high output current capability
- Available in various package types including X2QFN, SOIC, TSSOP, and VSSOP
Applications
- Low-power audio preamplifiers
- Multiplexed data-acquisition systems
- Test and measurement equipment
- ADC driver amplifiers and SAR ADC reference buffers
- Programmable logic controllers
- High-side and low-side current sensing
Q & A
- What is the maximum differential input voltage for the OPA2991SIRUGR?
The OPA2991SIRUGR can tolerate a maximum differential input voltage of up to 40 V.
- What is the typical input offset voltage of the OPA2991SIRUGR?
The typical input offset voltage is ±125 µV.
- What is the bandwidth of the OPA2991SIRUGR?
The bandwidth is 4.5 MHz.
- What is the slew rate of the OPA2991SIRUGR?
The slew rate is 21 V/µs.
- Does the OPA2991SIRUGR have shutdown functionality?
- What are the operating temperature ranges for the OPA2991SIRUGR?
The operating temperature range is from –40°C to 125°C.
- In what package types is the OPA2991SIRUGR available?
The OPA2991SIRUGR is available in various package types including X2QFN, SOIC, TSSOP, and VSSOP.
- What are some common applications for the OPA2991SIRUGR?
Common applications include low-power audio preamplifiers, multiplexed data-acquisition systems, test and measurement equipment, ADC driver amplifiers, and high-side and low-side current sensing.
- What is the typical noise level of the OPA2991SIRUGR?
The typical noise level is 10.5 nV/√Hz and 1.8 µVPP.
- How much output current can the OPA2991SIRUGR provide?
The OPA2991SIRUGR can provide up to ±75 mA of output current.
