Overview
The AD8619ARZ-REEL7, produced by Analog Devices Inc., is a quad micropower, rail-to-rail input and output operational amplifier. This device is part of the AD8613/AD8617/AD8619 family, known for its low supply current, low input voltage and current noise, and single-supply operation. It is particularly useful in portable and loop-powered instrumentation due to its low power consumption and high performance characteristics.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −0.3 V < VCM < +5.3 V | 0.4 | 2.2 | mV | |
| Offset Voltage Drift | ∆VOS/∆T | −40°C < TA < +125°C | 1 | 4.5 | μV/°C | |
| Input Bias Current | IB | −40°C < TA < +85°C | 0.2 | 1 | pA | |
| Input Offset Current | IOS | −40°C < TA < +85°C | 0.1 | 0.5 | pA | |
| Input Voltage Range | IVR | 0 | 5 V | |||
| Common-Mode Rejection Ratio | CMRR | 0 V < VCM < 5 V | 95 | dB | ||
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, 0.5 V < VO < 4.5 V | 235 | |||
| Supply Voltage Range | V_S | 1.8 V | 5.5 V | |||
| Supply Current per Amplifier | I_S | 50 | μA |
Key Features
- Rail-to-rail input and output operation
- Low input bias current: 1 pA maximum
- Low noise: 22 nV/√Hz
- Micropower: 50 μA/amplifier maximum over temperature
- No phase reversal
- Unity gain stable
- Qualified for automotive applications (AD8619W models)
- Single-supply operation: 1.8 V to 5.5 V or ±0.9 V and ±2.5 V dual supply
Applications
- Battery-powered instrumentation
- Multipole filters
- Current shunt sense
- Sensors
- ADC predrivers
- DAC drivers/level shifters
- Low power ASIC input or output amplifiers
Q & A
- What is the input bias current of the AD8619?
The input bias current of the AD8619 is 1 pA maximum at room temperature and up to 780 pA over the full temperature range.
- What is the noise performance of the AD8619?
The AD8619 has a low noise performance with a voltage noise density of 22 nV/√Hz.
- What are the supply voltage ranges for the AD8619?
The AD8619 can operate from a single supply of 1.8 V to 5.5 V or from dual supplies of ±0.9 V and ±2.5 V.
- Is the AD8619 suitable for automotive applications?
Yes, the AD8619W models are qualified for automotive applications and meet the quality and reliability requirements for such use.
- What are the typical applications of the AD8619?
The AD8619 is typically used in battery-powered instrumentation, multipole filters, current shunt sense, sensors, ADC predrivers, DAC drivers/level shifters, and low power ASIC input or output amplifiers.
- What is the common-mode rejection ratio (CMRR) of the AD8619?
The CMRR of the AD8619 is 95 dB over the specified common-mode voltage range.
- What is the large signal voltage gain of the AD8619?
The large signal voltage gain of the AD8619 is 235 minimum with a load resistance of 10 kΩ.
- Is the AD8619 unity gain stable?
Yes, the AD8619 is unity gain stable.
- What are the package options for the AD8619?
The AD8619 is available in various packages including SC70, TSOT-23, and others as specified in the ordering guide.
- What is the maximum supply current per amplifier for the AD8619?
The maximum supply current per amplifier for the AD8619 is 50 μA over the full temperature range.
