Overview
The AD8667ARMZ is a dual, rail-to-rail output, single-supply/dual-supply operational amplifier produced by Analog Devices Inc. This device utilizes Analog Devices' patented DigiTrim® trimming technique to achieve low offset voltage and high precision. It is designed for low power operation, making it ideal for a wide variety of applications, including medical equipment, physiological measurements, precision references, and high-density power budget systems.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VSY | Single/Dual Supply | 5 V / ±2.5 V | 16 V / ±8 V | V | |
| Offset Voltage | VOS | VCM = 2.5 V, TA = 25°C | 100 μV | 350 μV | μV | |
| Input Bias Current | IB | 0.3 pA | pA | |||
| Voltage Noise Density | en | f = 1 kHz | 23 nV/√Hz | nV/√Hz | ||
| Voltage Noise Density | en | f = 10 kHz | 21 nV/√Hz | nV/√Hz | ||
| Slew Rate | SR | RL = 2 kΩ | 0.3 V/μs | V/μs | ||
| Gain Bandwidth Product | GBP | CL = 20 pF | 540 kHz | kHz | ||
| Output Drive | 10 mA | mA | ||||
| Supply Current per Amplifier | ISY | VOUT = VSY/2, TA = 25°C | 230 μA | 285 μA | μA |
Key Features
- Low power consumption: Typical supply current of 230 μA per amplifier.
- Low offset voltage: 100 μV typical, using DigiTrim® trimming technique.
- Low input bias current: 0.3 pA typical.
- Low noise: 21 nV/√Hz at 10 kHz and 23 nV/√Hz at 1 kHz.
- Rail-to-rail output capability.
- Single-supply operation: 5 V to 16 V, and dual-supply operation: ±2.5 V to ±8 V.
- High output drive: 10 mA.
- Unity gain stable.
- Extended industrial temperature range: −40°C to +125°C.
Applications
- Medical equipment and physiological measurements.
- Precision references and buffer/level shifting.
- Portable and battery-operated systems.
- High-density power budget systems.
- Multipole filters and sensor applications, including photodiode amplification.
- ADC drivers.
Q & A
- What is the typical supply current of the AD8667ARMZ?
The typical supply current is 230 μA per amplifier.
- What is the offset voltage of the AD8667ARMZ?
The offset voltage is typically 100 μV.
- What is the input bias current of the AD8667ARMZ?
The input bias current is typically 0.3 pA.
- What are the voltage noise characteristics of the AD8667ARMZ?
The voltage noise density is 21 nV/√Hz at 10 kHz and 23 nV/√Hz at 1 kHz.
- What is the slew rate of the AD8667ARMZ?
The slew rate is 0.3 V/μs.
- What is the gain bandwidth product of the AD8667ARMZ?
The gain bandwidth product is 540 kHz.
- What are the operating supply voltage ranges for the AD8667ARMZ?
The device can operate on single supplies from 5 V to 16 V and dual supplies from ±2.5 V to ±8 V.
- What is the output drive capability of the AD8667ARMZ?
The output drive capability is 10 mA.
- What is the temperature range for the AD8667ARMZ?
The device is specified over the extended industrial temperature range of −40°C to +125°C.
- In what packages is the AD8667ARMZ available?
The AD8667ARMZ is available in 8-lead MSOP and 8-lead SOIC packages.
