Overview
The OPA836IDBVT from Texas Instruments is a single-channel, ultra-low power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifier. Designed for operation over a wide power-supply range of 2.5 V to 5.5 V, this device is ideal for battery-powered and portable applications where power efficiency is crucial. The OPA836IDBVT offers a high power-to-performance ratio, consuming only 1 mA of quiescent current per channel while providing a unity-gain bandwidth of 205 MHz and ultra-low total harmonic distortion (THD) of 0.00003% at 1 kHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2.5 to 5.5 | V |
| Quiescent Current | 1 | mA |
| Power Down Current | < 1.5 | µA |
| Unity-Gain Bandwidth | 205 | MHz |
| Total Harmonic Distortion (THD) | 0.00003% | - |
| Input Common-Mode Range | -0.2 V to V+ - 1.1 V | V |
| Output Voltage Range | V- + 0.15 V to V+ - 0.15 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | SOT-23-6 | - |
Key Features
- Ultra-Low Power Consumption: 1 mA quiescent current per channel, with a power-down mode reducing current to less than 1.5 µA.
- High Frequency Performance: Unity-gain bandwidth of 205 MHz and slew rate of 580 V/µs.
- Rail-to-Rail Output: Output voltage swings within a couple hundred millivolts of the supply rails.
- Negative-Rail Input: Input common-mode range extends below the negative supply rail.
- Integrated Gain-Setting Resistors: The OPA836IRUN package option includes integrated gain-setting resistors for achieving various gains and attenuations with minimal PCB footprint.
- Low Distortion: Ultra-low total harmonic distortion (THD) of 0.00003% at 1 kHz.
Applications
- Battery-Powered and Portable Devices: Ideal for applications where power efficiency is critical, such as handheld devices and wearable electronics.
- Audio Systems: Provides excellent audio performance with low distortion, suitable for single-ended input to single-ended output audio amplifiers.
- Active Filters: Suitable for implementing second-order low-pass Butterworth filter circuits using Multiple Feedback (MFB) and Sallen-Key configurations.
- Data Acquisition Systems: Excellent performance when driving high-performance delta-sigma (ΔΣ) and successive-approximation-register (SAR) ADCs in low-power applications.
- Industrial Applications: Used in remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition.
Q & A
- What is the supply voltage range for the OPA836IDBVT?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the quiescent current of the OPA836IDBVT?
The quiescent current is 1 mA per channel.
- What is the unity-gain bandwidth of the OPA836IDBVT?
The unity-gain bandwidth is 205 MHz.
- Can the OPA836IDBVT operate in power-down mode?
- What is the input common-mode range of the OPA836IDBVT?
The input common-mode range extends from -0.2 V to V+ - 1.1 V.
- What is the output voltage range of the OPA836IDBVT?
The output voltage range is typically within 0.15 V of the supply rails.
- Can the OPA836IDBVT drive capacitive loads?
- What are the typical applications of the OPA836IDBVT?
- Does the OPA836IDBVT have integrated gain-setting resistors?
- What is the operating temperature range of the OPA836IDBVT?
