Overview
The OP90GSZ-REEL is a high-performance, micropower operational amplifier (op amp) manufactured by Analog Devices Inc. This device is designed to operate from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V, making it versatile for various applications. The OP90 is known for its low input offset voltage, high open-loop gain, and excellent power supply rejection ratio (PSRR), which are crucial for precision and stability in micropower applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | VS = ±1.5 V to ±15 V, TA = 25°C | 80 | 125 | 450 | µV |
| Input Offset Current | IOS | VCM = 0 V | 0.4 | - | 5 | nA |
| Input Bias Current | IB | VCM = 0 V | 4.0 | - | 25 | nA |
| Large-Signal Voltage Gain | AVO | VS = ±15 V, VO = ±10 V | - | - | - | - |
| Power Supply Rejection Ratio | PSRR | VS = ±1.5 V to ±15 V | 3.2 | - | 10 | µV/V |
| Slew Rate | SR | VS = ±15 V | 5 | - | 12 | V/ms |
| Supply Current | ISY | VS = ±1.5 V to ±15 V | 9 | 14 | 20 | µA |
| Capacitive Load Stability | - | AV = 1 | - | - | 250-650 | pF |
| Input Noise Voltage | en | fO = 0.1 Hz to 10 Hz, VS = ±15 V | - | - | 3 | µV p-p |
| Input Resistance (Differential Mode) | RIN | VS = ±15 V | - | - | 30 MΩ | - |
| Input Resistance (Common-Mode) | RINCM | VS = ±15 V | - | - | 20 GΩ | - |
Key Features
- Low Input Offset Voltage: The OP90 has an input offset voltage of 150 µV max, which is crucial for precision applications.
- High Open-Loop Gain: With a gain exceeding 700,000, this op amp ensures high precision in signal amplification.
- Excellent PSRR: The power supply rejection ratio is under 5.6 µV/V, minimizing offset voltage changes in battery-powered systems.
- Low Power Consumption: The device draws less than 20 µA of quiescent supply current, making it suitable for battery and solar-powered applications.
- Wide Operating Voltage Range: It operates from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V.
- Zero-In, Zero-Out Operation: The input and output ranges include ground, enabling true “zero-in, zero-out” operation.
Applications
- Battery-Powered Systems: Ideal for battery-powered voltage references, portable instruments, and remote sensors due to its low power consumption and high precision.
- Solar Powered Systems: Suitable for solar-powered applications where minimal voltage and current requirements are essential.
- Portable Instruments: Used in portable instruments where precision and low power consumption are critical.
- Remote Sensors and Satellites: Its low power and high precision make it a good choice for remote sensors and satellite applications.
Q & A
- What is the input offset voltage of the OP90GSZ-REEL? The input offset voltage is 150 µV max.
- What is the operating voltage range of the OP90GSZ-REEL? It operates from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V.
- How much quiescent supply current does the OP90GSZ-REEL draw? It draws less than 20 µA of quiescent supply current.
- What is the power supply rejection ratio (PSRR) of the OP90GSZ-REEL? The PSRR is under 5.6 µV/V.
- Can the OP90GSZ-REEL operate in a “zero-in, zero-out” mode? Yes, the input and output ranges include ground, enabling true “zero-in, zero-out” operation.
- What are some typical applications of the OP90GSZ-REEL? Typical applications include battery-powered systems, solar-powered systems, portable instruments, remote sensors, and satellites.
- What is the slew rate of the OP90GSZ-REEL? The slew rate is 5 to 12 V/ms.
- How much output current can the OP90GSZ-REEL deliver? It can deliver over 5 mA of output current to a load.
- Is the OP90GSZ-REEL suitable for high-precision applications? Yes, it is suitable due to its low input offset voltage and high open-loop gain.
- What is the input noise voltage of the OP90GSZ-REEL? The input noise voltage is 3 µV p-p from 0.1 Hz to 10 Hz.
