Overview
The OP293FSZ is a precision, micropower operational amplifier manufactured by Analog Devices Inc. It is part of the OP193/OP293 series, known for its high precision, low supply current, and ability to operate at low voltages. This single-supply operational amplifier is designed for high performance in single-supply systems, with the input and output ranges including ground, and the outputs swinging from the negative rail to within 600 mV of the positive supply.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VS = ±15.0 V, TA = 25°C | 100 | 250 | 350 | μV |
| Input Bias Current | IB | VCM = 0 V, −40°C ≤ TA ≤ +125°C | 15 | 20 | nA | |
| Input Offset Current | IOS | VCM = 0 V, −40°C ≤ TA ≤ +125°C | 2 | 4 | nA | |
| Input Voltage Range | VCM | −14.9 V ≤ VCM ≤ +14 V | -14.9 | - | 13.5 | V |
| Common-Mode Rejection Ratio | CMRR | −14.9 V ≤ VCM ≤ +14 V | 97 | 116 | dB | |
| Supply Current | - | VS = 2.0 V, TA = 25°C | - | 15 | μA | |
| Output Current | - | - | - | ±5 | mA | |
| Maximum Dual Supply Voltage | - | - | - | ±18 | V | |
| Minimum Dual Supply Voltage | - | - | ±1 | - | V | |
| Package | - | - | - | SOIC-8 | - |
Key Features
- Operates from +1.7 V to ±18 V, making it suitable for low voltage and single-supply systems.
- Low supply current of 15 μA per amplifier.
- High precision with an offset voltage of 100 μV maximum.
- No phase reversal and outputs that can sink and source up to ±5 mA.
- High open-loop gain of 600 V/mV and unity-gain stability.
- Input transistors that permit operation down to ground potential.
Applications
- Digital scales
- Strain gages
- Portable medical equipment
- Battery-powered instrumentation
- Temperature transducer amplifiers
Q & A
- What is the minimum supply voltage for the OP293FSZ? The minimum supply voltage is +1.7 V or ±0.85 V.
- What is the maximum offset voltage for the OP293FSZ? The maximum offset voltage is 100 μV.
- How much current does the OP293FSZ draw from the supply? The supply current is 15 μA per amplifier.
- What is the output current capability of the OP293FSZ? The output can sink and source up to ±5 mA.
- Is the OP293FSZ suitable for single-supply systems? Yes, it is designed for high performance in single-supply systems.
- What is the common-mode rejection ratio (CMRR) of the OP293FSZ? The CMRR is 97 dB to 116 dB.
- What package type is the OP293FSZ available in? It is available in an SOIC-8 package.
- What are some typical applications of the OP293FSZ? Typical applications include digital scales, strain gages, portable medical equipment, and temperature transducer amplifiers.
- Does the OP293FSZ have phase reversal issues? No, it does not have phase reversal issues.
- What is the open-loop gain of the OP293FSZ? The open-loop gain is 600 V/mV.
