Overview
The AD8657ARMZ-R7 is a dual, micropower, precision operational amplifier produced by Analog Devices Inc. This device is optimized for low power consumption and a wide operating supply voltage range, making it suitable for various applications requiring high precision and low current draw.
It features rail-to-rail input and output capabilities, ensuring that the amplifier can operate effectively across the entire supply voltage range. The AD8657ARMZ-R7 is available in an 8-lead MSOP package, which is compact and suitable for space-constrained designs.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD8657ARMZ-R7 |
| Package | 8-lead MSOP |
| Number of Channels | 2 |
| Supply Voltage Range | 2.7 V to 18 V (single-supply), ±1.35 V to ±9 V (dual-supply) |
| Operating Supply Current | Typically 18 μA per channel |
| Input Offset Voltage (Vos) | 350 μV |
| Common Mode Rejection Ratio (CMRR) | 110 dB |
| Slew Rate | 0.08 V/μs |
| Input Bias Current | 5 pA |
| Output Type | Rail-to-Rail |
| Temperature Range | −40°C to +125°C |
Key Features
- Rail-to-Rail Input and Output: The AD8657ARMZ-R7 can operate with inputs and outputs that range from the negative to the positive supply rail, enhancing its versatility in various applications.
- Low Power Consumption: With a typical quiescent supply current of 18 μA per channel, this amplifier is ideal for battery-powered and low-power systems.
- High Precision: The device features low input offset voltage (350 μV) and high common mode rejection ratio (110 dB), ensuring high accuracy in signal amplification.
- Wide Supply Voltage Range: It can operate from 2.7 V to 18 V in single-supply mode and from ±1.35 V to ±9 V in dual-supply mode, making it adaptable to different system requirements.
- High Immunity to Electromagnetic Interference (EMI): The AD8657ARMZ-R7 has excellent EMI rejection capabilities, ensuring reliable operation in noisy environments.
Applications
- Portable Operating Systems: Suitable for battery-powered devices due to its low power consumption.
- Current Monitors and 4 mA to 20 mA Loop Drivers: Ideal for process control and motor control applications.
- Buffer/Level Shifting and Multipole Filters: Can be used in signal conditioning and filtering applications.
- Remote/Wireless Sensors and Low Power Transimpedance Amplifiers: Suitable for wireless or remote sensing applications where low power and high precision are required.
Q & A
- What is the typical operating supply current of the AD8657ARMZ-R7?
The typical operating supply current is 18 μA per channel.
- What is the input offset voltage of the AD8657ARMZ-R7?
The input offset voltage is 350 μV.
- What is the common mode rejection ratio (CMRR) of the AD8657ARMZ-R7?
The CMRR is 110 dB.
- What are the available package types for the AD8657ARMZ-R7?
The device is available in an 8-lead MSOP package.
- What is the temperature range for the AD8657ARMZ-R7?
The device operates over a temperature range of −40°C to +125°C.
- What are some common applications of the AD8657ARMZ-R7?
Common applications include portable operating systems, current monitors, buffer/level shifting, multipole filters, remote/wireless sensors, and low power transimpedance amplifiers.
- Does the AD8657ARMZ-R7 have rail-to-rail input and output capabilities?
Yes, the AD8657ARMZ-R7 has rail-to-rail input and output capabilities.
- What is the slew rate of the AD8657ARMZ-R7?
The slew rate is 0.08 V/μs.
- Is the AD8657ARMZ-R7 suitable for high EMI environments?
Yes, the device has high immunity to electromagnetic interference (EMI).
- What is the input bias current of the AD8657ARMZ-R7?
The input bias current is 5 pA).
