Overview
The AD8625ARZ-REEL, produced by Analog Devices Inc., is a precision JFET input operational amplifier. It is part of the AD862x series, known for its true single-supply operation, low power consumption, and rail-to-rail output. This amplifier is designed to offer high precision and stability, making it suitable for a variety of applications, including photodiode transimpedance amplification, ATE reference level drivers, battery management, and remote sensor signal conditioning.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VS = 5 V, VCM = 1.5 V, TA = 25°C | 0.05 | 0.5 | 1.2 | mV |
| Input Bias Current | IB | –40°C < TA < +85°C | 0.25 | 1 | 60 | pA |
| Input Offset Current | IOS | –40°C < TA < +85°C | 0.5 | 25 | pA | |
| Input Voltage Range | 0 | 3 | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 2.5 V | 66 | 87 | dB | |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.5 V to 4.5 V | 100 | 230 | V/mV | |
| Offset Voltage Drift | ∆VOS/∆T | –40°C < TA < +85°C | 2.5 | µV/°C | ||
| Output Voltage High | VOH | IL = 2 mA, –40°C < TA < +85°C | 4.92 | 4.90 | V | |
| Output Voltage Low | VOL | IL = 2 mA, –40°C < TA < +85°C | 0.075 | 0.08 | V | |
| Output Current | IOUT | ±10 | mA | |||
| Power-Supply Rejection Ratio | PSRR | VS = 5 V to 26 V | 80 | 104 | dB | |
| Supply Current/Amplifier | ISY | –40°C < TA < +85°C | 630 | 785 | 800 | µA |
| Slew Rate | SR | 5 | V/µs | |||
| Gain Bandwidth Product | GBP | 5 | MHz | |||
| Phase Margin | ØM | 60 | Degrees | |||
| Voltage Noise | en | 0.1 Hz to 10 Hz | 1.9 | µV p-p | ||
| Voltage Noise Density | en | f = 1 kHz | 17.5 | nV/√Hz | ||
| Current Noise Density | in | f = 1 kHz | 0.4 | fA/√Hz | ||
| Channel Separation | Cs | f = 1 kHz | 104 | dB |
Key Features
- Precision JFET input operational amplifier with low input bias current (≤1 pA)
- True single-supply operation with rail-to-rail output
- Low power consumption (less than 630 μA/amp)
- High common-mode rejection ratio (CMRR) of up to 87 dB
- Stable operation with capacitive loads of over 500 pF
- High slew rate of 5 V/µs and gain bandwidth product of 5 MHz
- Low noise performance with voltage noise density of 17.5 nV/√Hz at 1 kHz
Applications
- Photodiode transimpedance amplification
- ATE reference level drivers
- Battery management
- Line powered and portable instrumentation
- Remote sensor signal conditioning, including automotive sensors
- Buffering CMOS DACs, ASICs, and other wide dynamic range devices
Q & A
- What is the AD8625ARZ-REEL used for? The AD8625ARZ-REEL is used in various applications such as photodiode transimpedance amplification, ATE reference level drivers, battery management, and remote sensor signal conditioning.
- What are the key features of the AD8625ARZ-REEL? Key features include precision JFET input, true single-supply operation, low power consumption, rail-to-rail output, and high CMRR.
- What is the typical supply current for the AD8625ARZ-REEL? The typical supply current is less than 630 μA per amplifier.
- What is the slew rate of the AD8625ARZ-REEL? The slew rate is 5 V/µs.
- What is the gain bandwidth product of the AD8625ARZ-REEL? The gain bandwidth product is 5 MHz.
- How stable is the AD8625ARZ-REEL with capacitive loads? It remains stable with capacitive loads of over 500 pF.
- What is the voltage noise density of the AD8625ARZ-REEL at 1 kHz? The voltage noise density is 17.5 nV/√Hz at 1 kHz.
- What are the typical output voltage ranges for the AD8625ARZ-REEL? The output voltage high is typically 4.92 V, and the output voltage low is typically 0.075 V.
- What is the phase margin of the AD8625ARZ-REEL? The phase margin is 60 degrees.
- What packaging options are available for the AD8625ARZ-REEL? It is available in 14-lead SOIC and 14-lead TSSOP packages.
