規格
| 屬性 | 價值 |
| Supplier | Texas Instruments,Rochester Electronics, LLC |
| Package / Case | Tape & Reel (TR),Bulk |
| Part Status | Active |
| Amplifier Type | General Purpose |
| Number of Circuits | 2 |
| Slew Rate | 170V/µs |
| Gain Bandwidth Product | 240 MHz |
| -3 dB Bandwidth | 400 MHz |
| Current - Input Bias | 9 µA |
| Voltage - Input Offset | 200 µV |
| Supply Current | 9.6mA (x2 Channels) |
| Current - Output / Channel | 150 mA |
| Voltage - Supply Span(Min) | 4 V |
| Voltage - Supply Span(Max) | 12.6 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
OPA2822U/2K5 is TI’s dual rail-to-rail input/output operational amplifier. It combines low-noise, low-offset performance with RRIO behavior, making it suitable for precision signal conditioning in single-supply systems. Key uses include sensor front-ends, buffer stages for ADCs, active filters, and portable audio paths. The device contains two identical op-amps in an 8-pin package and typically offers low input bias current, good offset stability, and adequate gain-bandwidth for many low- to mid-frequency applications. The “U/2K5” suffixes indicate the particular package/variant code, with exact packaging options (MSOP-8, SO-8, etc.) and electrical specs varying by device. For design, verify the exact supply voltage range, input common-mode range (including the rail), output swing under load, gain-bandwidth product, slew rate, and offset/noise specs on the TI datasheet and product page. If you provide your supply and gain requirements, I can suggest suitability and a rough design approach.
Equivalent
Do you want cross-reference equivalents from other vendors? If so, please share your critical specs (GBW, input offset voltage, offset drift, Vos, noise, Iq, rail-to-rail I/O, supply voltage) and preferred package. Commonly cited near equivalents include Analog Devices ADA4528-2, ADA4627-2, and older duals like AD8628/AD8620; TI options nearby in performance include OPA2134/OPA2320. Exact closest match depends on your required specs.
Features
OPA2822U/2K5 features (concise):
- Dual, precision, low-noise operational amplifiers
- Rail-to-rail input and output (RRIO)
- Wide supply voltage range and low quiescent current
- Very low input bias current and low input offset voltage
- High slew rate and wide bandwidth for fast signals
- Low distortion with good settling performance
- Temperature range suitable for industrial use (-40°C to +125°C)
- 8-pin package (U suffix; MSOP-8/SOIC-8); RoHS-compliant
- Packaging code/tape-and-reel option: 2K5
Note: exact electrical specs (numbers) vary by variant; refer to the TI datasheet for precise values.
- Dual, precision, low-noise operational amplifiers
- Rail-to-rail input and output (RRIO)
- Wide supply voltage range and low quiescent current
- Very low input bias current and low input offset voltage
- High slew rate and wide bandwidth for fast signals
- Low distortion with good settling performance
- Temperature range suitable for industrial use (-40°C to +125°C)
- 8-pin package (U suffix; MSOP-8/SOIC-8); RoHS-compliant
- Packaging code/tape-and-reel option: 2K5
Note: exact electrical specs (numbers) vary by variant; refer to the TI datasheet for precise values.
Pinout
- Pin count: 8 pins (8-pin package)
- Function: Dual operational amplifier (two op-amps in one package)
- Function: Dual operational amplifier (two op-amps in one package)
Manufacturer
- Manufacturer: Texas Instruments (TI).
- Company type: American multinational corporation that designs and manufactures semiconductors and integrated circuits (notably analog, mixed-signal, and DSP products).
- Company type: American multinational corporation that designs and manufactures semiconductors and integrated circuits (notably analog, mixed-signal, and DSP products).
Application
OPA2822U/2K5 is a dual rail-to-rail input/output, low-noise precision op-amp. Common application areas include:
- Precision sensor conditioning (thermocouples, RTDs, strain gauges)
- Transimpedance amplifiers for photodiodes/optical sensors
- ADC/DAC driver and input buffering in data-acquisition front ends
- Active filters and instrumentation amplifiers
- Audio preamplifiers and line-level circuits
- Portable, automotive, and industrial sensing with wide supply range and good PSRR
These uses leverage its low offset, low noise, and rail-to-rail I/O performance.
- Precision sensor conditioning (thermocouples, RTDs, strain gauges)
- Transimpedance amplifiers for photodiodes/optical sensors
- ADC/DAC driver and input buffering in data-acquisition front ends
- Active filters and instrumentation amplifiers
- Audio preamplifiers and line-level circuits
- Portable, automotive, and industrial sensing with wide supply range and good PSRR
These uses leverage its low offset, low noise, and rail-to-rail I/O performance.
Package
OPA2822U/2K5 comes in an 8-pin μSOP (MSOP) package. The U suffix indicates the μSOP 8‑pin package.