Overview
The AD8220ARMZ-R7 is a single-supply, JFET input instrumentation amplifier produced by Analog Devices Inc. It is the first of its kind available in an MSOP (Micro Small Outline Package) package, designed to meet the needs of high-performance, portable instrumentation. This amplifier is notable for its ability to operate on a wide range of supply voltages, from a single 4.5 V to 36 V supply or a dual ±2.25 V to ±18 V supply, making it versatile for various applications. The AD8220ARMZ-R7 is ideal for battery-powered devices due to its low quiescent supply current of 750 μA and rail-to-rail output stage, which maximizes dynamic range on low voltage supplies.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD8220ARMZ-R7 |
| Package | MSOP-8 |
| Input Bias Current | 10 pA maximum (B grade) |
| Input Offset Current | 0.6 pA maximum (B grade) |
| Common-Mode Rejection Ratio (CMRR) | 100 dB (minimum), G = 10 (B grade); 80 dB (minimum) to 5 kHz, G = 1 (B grade) |
| Bandwidth | 1.5 MHz (G = 1) |
| Input Noise | 14 nV/√Hz at 1 kHz |
| Slew Rate | 2 V/μs |
| Quiescent Supply Current | 750 μA maximum |
| Supply Voltage Range | 4.5 V to 36 V single supply; ±2.25 V to ±18 V dual supply |
| ESD Protection | 4 kV |
| Operating Temperature Range | -40°C to +125°C (automotive grade) |
Key Features
- JFET Input: Low input bias current of 10 pA maximum and low input offset current of 0.6 pA maximum.
- Rail-to-Rail Output: Maximizes dynamic range on low voltage supplies, making it suitable for portable applications.
- High CMRR: Minimum CMRR of 100 dB at G = 10 and 80 dB at 5 kHz for G = 1.
- Low Power Consumption: Quiescent supply current of 750 μA, ideal for battery-powered devices.
- Flexible Supply Voltage: Operates on a single 4.5 V to 36 V supply or a dual ±2.25 V to ±18 V supply.
- Gain Setting: Gain can be set from 1 to 1000 with a single resistor.
- ESD Protection: 4 kV ESD protection.
- Compact Package: MSOP-8 package, taking roughly half the board area of an SOIC package.
Applications
- Medical Instrumentation: Suitable for medical devices requiring high precision and low noise.
- Precision Data Acquisition: Ideal for applications needing accurate and reliable data acquisition.
- Transducer Interfaces: Used in interfacing with various transducers due to its high CMRR and low noise characteristics.
- Automotive Applications: Qualified for automotive use with an operating temperature range of -40°C to +125°C.
Q & A
- What is the AD8220ARMZ-R7?
The AD8220ARMZ-R7 is a single-supply, JFET input instrumentation amplifier produced by Analog Devices Inc., available in an MSOP-8 package.
- What are the key features of the AD8220ARMZ-R7?
Key features include low input bias current, rail-to-rail output, high CMRR, low power consumption, flexible supply voltage range, and gain setting with a single resistor).
- What is the input bias current of the AD8220ARMZ-R7?
The input bias current is 10 pA maximum (B grade)).
- What is the common-mode rejection ratio (CMRR) of the AD8220ARMZ-R7?
The CMRR is 100 dB (minimum) at G = 10 and 80 dB (minimum) to 5 kHz at G = 1).
- What is the bandwidth of the AD8220ARMZ-R7?
The bandwidth is 1.5 MHz (G = 1)).
- What is the quiescent supply current of the AD8220ARMZ-R7?
The quiescent supply current is 750 μA maximum).
- What are the supply voltage ranges for the AD8220ARMZ-R7?
The AD8220ARMZ-R7 can operate on a single 4.5 V to 36 V supply or a dual ±2.25 V to ±18 V supply).
- Is the AD8220ARMZ-R7 suitable for automotive applications?
Yes, it is qualified for automotive applications with an operating temperature range of -40°C to +125°C).
- What is the ESD protection level of the AD8220ARMZ-R7?
The AD8220ARMZ-R7 has 4 kV ESD protection).
- How is the gain set for the AD8220ARMZ-R7?
The gain can be set from 1 to 1000 with a single resistor).
