Overview
The OPA2735AIDR is a dual, low-offset, zero-drift, CMOS operational amplifier produced by Texas Instruments. This device is part of the OPA2735 series, which utilizes auto-zeroing techniques to provide low offset voltage and near-zero drift over time and temperature. The OPA2735AIDR is optimized for low-voltage, single-supply operation and is available in an 8-pin SOIC (D) package. It offers high input impedance and rail-to-rail output swing within 50mV of the supply rails, making it suitable for a variety of precision applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | - | - | 5 µV | - |
| Offset Drift (dVOS/dT) | - | 0.01 | 0.05 | µV/°C |
| Quiescent Current (Iq per channel) | - | 0.6 mA | 0.75 mA | - |
| Input Bias Current (IB) | - | - | 200 pA | - |
| Slew Rate | - | 1.5 | - | V/µs |
| Gain Bandwidth Product (GBW) | - | 1.6 MHz | - | - |
| Common Mode Rejection Ratio (CMRR) | 115 dB | 130 dB | - | - |
| Output Current | - | 20 mA | - | - |
| Total Supply Voltage | 2.7 V | - | 12 V | - |
| Operating Temperature Range | -40°C | - | 85°C | - |
| Package Type | - | - | SOIC-8 | - |
Key Features
- Low Offset Voltage: 5µV (max)
- Zero Drift: 0.05µV/°C (max)
- Quiescent Current: 750µA (max)
- Single-Supply Operation: Compatible with single or bipolar supplies in the range of +2.7V to +12V (±1.35V to ±6V)
- Low Bias Current: 200pA (max)
- Shutdown Mode: Available in some versions, allowing the amplifier to be switched to a standby current of 9µA (max) and the output placed in a high-impedance state
- MicroSIZE Packages: Available in SOIC-8, MSOP-8, and other compact packages
- Rail-to-Rail Output Swing: Within 50mV of the supply rails
- High Input Impedance: Suitable for high-precision applications
Applications
- Transducer Applications: For precise signal conditioning
- Temperature Measurements: High accuracy and stability
- Electronic Scales: For weighing and measurement systems
- Medical Instrumentation: For precise and reliable signal processing
- Battery-Powered Instruments: Due to low quiescent current and single-supply operation
- Handheld Test Equipment: For portable and precise measurement tools
Q & A
- What is the maximum input offset voltage of the OPA2735AIDR?
The maximum input offset voltage is 5µV.
- What is the typical offset drift of the OPA2735AIDR?
The typical offset drift is 0.01 µV/°C, with a maximum of 0.05 µV/°C.
- What is the quiescent current per channel for the OPA2735AIDR?
The quiescent current per channel is typically 0.6 mA, with a maximum of 0.75 mA.
- What is the input bias current of the OPA2735AIDR?
The input bias current is a maximum of 200 pA.
- What is the slew rate of the OPA2735AIDR?
The slew rate is typically 1.5 V/µs.
- What is the gain bandwidth product (GBW) of the OPA2735AIDR?
The GBW is typically 1.6 MHz.
- What is the common mode rejection ratio (CMRR) of the OPA2735AIDR?
The CMRR is typically 130 dB, with a minimum of 115 dB.
- What is the operating temperature range of the OPA2735AIDR?
The operating temperature range is from -40°C to 85°C.
- In what package types is the OPA2735AIDR available?
The OPA2735AIDR is available in SOIC-8 and MSOP-8 packages, among others.
- Does the OPA2735AIDR have a shutdown mode?
Yes, some versions of the OPA2735 series include a shutdown mode.
