ADA4530-1 Overview
The ADA4530-1 is a femtoampere (10−15 A) level input bias current operational amplifier suitable for use as an electrometer that also includes an integrated guard buffer. It has an operating voltage range of 4.5 V to 16 V, enabling it to operate in conventional 5 V and 10 V single supply systems as well as ±2.5 V and ±5 V dual supply systems. To maximize the dynamic range of the system, the ADA4530-1 has a...
ADA4530-1 Key Features
- Low input bias current
- ±20 fA maximum at TA = 25°C (guaranteed at production test)
- ±20 fA maximum at -40°C < TA < +85°C
- ±250 fA maximum at -40°C < TA < +125°C (guaranteed at production test)
- Low offset voltage: 50 µV maximum over specified CMRR range
- Offset voltage drift: ±0.13 µV/°C typical, ±0.5 µV/°C maximum
- Integrated guard buffer with 100 µV maximum offset
- Low voltage noise density: 14 nV/√Hz at 10 kHz
- Wide bandwidth: 2 MHz unity-gain crossover
- Supply voltage: 4.5 V to 16 V (±2.25 V to ±8 V)