Overview
The AD8244BRMZ-R7 is a precision, low-power, FET input, quad unity-gain buffer operational amplifier produced by Analog Devices Inc. This device is designed to isolate very large source impedances from the input of the buffer, making it ideal for applications requiring high input impedance and low noise.
It features a unique pinout that prevents leakage from inputs to supply pins, providing guarding capability. The AD8244BRMZ-R7 operates on a single supply with a voltage range of 3V to 36V or dual supplies from ±1.5V to ±18V, and it has a rail-to-rail output. The device is packaged in a 10-lead mini small outline package (MSOP) and is rated for operation over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AD8244BRMZ-R7 |
| Package | 10-MSOP (0.118", 3.00mm Width) |
| Number of Channels | 4 |
| Bandwidth | 3.6 MHz |
| Slew Rate | 0.8 V/µs |
| Supply Voltage Range | 3V to 36V, ±1.5V to ±18V |
| Input Bias Current | 0.5 pA (typical at +VS=5V, –VS=0V, TA=25°C, VIN=0.2V, RL=10Kohm) |
| Input Offset Voltage | 100 µV (typical at +VS=5V, –VS=0V, TA=25°C, VIN=0.2V, RL=10Kohm) |
| Common Mode Rejection Ratio (CMRR) | 80 dB |
| Power Supply Rejection Ratio (PSRR) | 90 dB |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption and high input impedance due to FET input.
- Low noise and high DC precision.
- No leakage from inputs to supply pins, providing guarding capability.
- Rail-to-rail output and single-supply operation with input range extending to the ground.
- High common mode rejection ratio (CMRR) of 80 dB and power supply rejection ratio (PSRR) of 90 dB.
- Compact 10-lead MSOP package.
Applications
- Precision instrumentation and measurement systems.
- High-impedance source buffering.
- Medical devices requiring low noise and high precision.
- Aerospace and defense applications where high reliability and temperature stability are crucial.
- Industrial control systems and automation.
Q & A
- What is the AD8244BRMZ-R7 used for?
The AD8244BRMZ-R7 is a precision, low-power, FET input, quad unity-gain buffer operational amplifier used for isolating large source impedances and providing high input impedance and low noise.
- What is the supply voltage range of the AD8244BRMZ-R7?
The AD8244BRMZ-R7 operates on a single supply from 3V to 36V or dual supplies from ±1.5V to ±18V.
- What is the typical input bias current of the AD8244BRMZ-R7?
The typical input bias current is 0.5 pA at +VS=5V, –VS=0V, TA=25°C, VIN=0.2V, RL=10Kohm.
- What is the common mode rejection ratio (CMRR) of the AD8244BRMZ-R7?
The CMRR is 80 dB.
- What is the operating temperature range of the AD8244BRMZ-R7?
The operating temperature range is -40°C to +85°C.
- What package types are available for the AD8244BRMZ-R7?
The device is available in a 10-lead mini small outline package (MSOP).
- What are some typical applications of the AD8244BRMZ-R7?
Typical applications include precision instrumentation, high-impedance source buffering, medical devices, aerospace and defense, and industrial control systems.
- What is the slew rate of the AD8244BRMZ-R7?
The slew rate is 0.8 V/µs.
- Does the AD8244BRMZ-R7 have rail-to-rail output capability?
Yes, the AD8244BRMZ-R7 has rail-to-rail output capability.
- What is the typical input offset voltage of the AD8244BRMZ-R7?
The typical input offset voltage is 100 µV at +VS=5V, –VS=0V, TA=25°C, VIN=0.2V, RL=10Kohm.
