Overview
The OP90GPZ, produced by Analog Devices Inc., is a high-performance, micropower operational amplifier. It 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. This op amp is notable for its low input offset voltage, high open-loop gain, and excellent power supply rejection ratio (PSRR), making it suitable for precision applications in battery and solar-powered systems.
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 | 700,000 | |||
| Power Supply Rejection Ratio | PSRR | VS = ±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 | No Oscillations | 250 to 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: Maximum of 450 µV, ensuring high precision in applications.
- High Open-Loop Gain: Exceeds 700,000, providing excellent amplification capabilities.
- Outstanding PSRR: Minimizes offset voltage changes with a PSRR of under 10 µV/V.
- Wide Supply Voltage Range: Operates from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V.
- Low Quiescent Supply Current: Draws less than 20 µA, making it suitable for battery and solar-powered systems.
- High Output Current Capability: Can deliver over 5 mA of output current to a load.
- Zero-In, Zero-Out Operation: Input and output ranges include ground, enabling true zero-in, zero-out operation in single-supply configurations.
Applications
- Battery-Powered Systems: Ideal for portable instruments, remote sensors, and other battery-powered applications due to its low power consumption.
- Solar-Powered Systems: Suitable for solar-powered devices where low current draw is critical.
- Voltage References: Can be used in battery-powered voltage reference circuits, offering high stability and low drift over temperature.
- Remote Sensing and Satellites: Its low power and high precision make it a good choice for remote sensing and satellite applications.
Q & A
- What is the input offset voltage of the OP90GPZ?
The input offset voltage of the OP90GPZ is a maximum of 450 µV.
- What is the operating supply voltage range for the OP90GPZ?
The OP90GPZ operates from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V.
- What is the quiescent supply current of the OP90GPZ?
The OP90GPZ draws less than 20 µA of quiescent supply current.
- What is the maximum output current capability of the OP90GPZ?
The OP90GPZ can deliver over 5 mA of output current to a load.
- Does the OP90GPZ support zero-in, zero-out operation?
Yes, the OP90GPZ supports zero-in, zero-out operation in single-supply configurations.
- What is the power supply rejection ratio (PSRR) of the OP90GPZ?
The PSRR of the OP90GPZ is under 10 µV/V.
- What are some typical applications of the OP90GPZ?
The OP90GPZ is typically used in battery-powered systems, solar-powered systems, voltage references, remote sensing, and satellites.
- What is the slew rate of the OP90GPZ?
The slew rate of the OP90GPZ is between 5 V/ms and 12 V/ms.
- Is the OP90GPZ stable with capacitive loads?
Yes, the OP90GPZ is stable with capacitive loads up to 650 pF.
- What is the input noise voltage of the OP90GPZ?
The input noise voltage of the OP90GPZ is 3 µV p-p from 0.1 Hz to 10 Hz.
