Overview
The ADA4637-1ARZ-R7, produced by Analog Devices Inc., is a high-performance, wide bandwidth precision operational amplifier. This device is part of the ADA4627-1/ADA4637-1 series, known for their low noise, very low offset voltage, drift, and bias current. The ADA4637-1 is a decompensated version of the ADA4627-1, stable at a noise gain of 5 or greater, making it suitable for high-speed and precision applications.
The amplifier operates from a dual supply of ±5 V to ±15 V and is available in compact 8-lead SOIC and LFCSP packages. It is specified for both industrial and extended industrial temperature ranges, from −25°C to +85°C and −40°C to +125°C, respectively.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 70 | 200 | 350 | µV |
| Offset Voltage Drift | ∆VOS/∆T | 1 | 2 | 3 | µV/°C |
| Input Bias Current | IB | 1 | 5 | 5 | pA |
| Power Supply Rejection Ratio | PSRR | 106 | 112 | 103 | dB |
| Gain Bandwidth Product | GBP | 79.9 | 79.9 | MHz | |
| Slew Rate | 170 | V/µs | |||
| Settling Time to 0.01% | tS | 300 | 300 | ns |
Key Features
- Low noise: 6.1 nV/√Hz at 1 kHz
- Very low offset voltage: 70 µV typical
- Low offset voltage drift: less than 1 µV/°C
- High gain: 120 dB typical
- High common-mode rejection ratio (CMRR): 116 dB typical
- High power supply rejection ratio (PSRR): 112 dB typical
- High slew rate: 170 V/µs
- Compact packaging: 8-lead SOIC and LFCSP
- Wide operating temperature range: −40°C to +125°C
Applications
- High impedance sensors
- Photodiode amplifiers
- Precision instrumentation
- Phase-locked loop filters
- High-end, professional audio
- DAC output amplifiers
- Automated Test Equipment (ATE)
- Medical equipment
Q & A
- What is the typical offset voltage of the ADA4637-1?
The typical offset voltage of the ADA4637-1 is 70 µV.
- What is the gain bandwidth product (GBP) of the ADA4637-1?
The gain bandwidth product (GBP) of the ADA4637-1 is 79.9 MHz.
- What is the slew rate of the ADA4637-1?
The slew rate of the ADA4637-1 is 170 V/µs.
- What are the operating voltage ranges for the ADA4637-1?
The ADA4637-1 operates from ±5 V to ±15 V dual supply.
- What are the typical packaging options for the ADA4637-1?
The ADA4637-1 is available in 8-lead SOIC and LFCSP packages.
- What is the power supply rejection ratio (PSRR) of the ADA4637-1?
The power supply rejection ratio (PSRR) of the ADA4637-1 is 112 dB typical.
- What are some common applications for the ADA4637-1?
Common applications include high impedance sensors, photodiode amplifiers, precision instrumentation, phase-locked loop filters, high-end professional audio, DAC output amplifiers, ATE, and medical equipment.
- What is the input bias current of the ADA4637-1?
The input bias current of the ADA4637-1 is 1 pA to 5 pA.
- What is the settling time to 0.01% for the ADA4637-1?
The settling time to 0.01% for the ADA4637-1 is 300 ns.
- What is the operating temperature range for the ADA4637-1?
The operating temperature range for the ADA4637-1 is from −40°C to +125°C.
