购物车中还没有商品，赶紧选购吧！
推荐用于新设计
特性
- Small, dual-channel, complete PGTIA and AFE solution
- Small size package: 16-lead LFCSP, 3 mm × 3 mm
- Integrated four internal gains per channel
- Range 0, internal RF = 315 Ω
- Range 1, internal RF = 3.5 kΩ
- Range 2, internal RF = 40.2 kΩ
- Range 3, internal RF = 450 kΩ
- Wide input current dynamic ranges from 100 picoamps to milliamps
- Excellent DC precision
- Low offset voltage: ±100 μV maximum, 25°C
- Low offset voltage drift: ±0.85 μV/°C maximum, −40°C to +125°C
- Low switch integrated switch impedance 19Ω maximum, −40°C to +125°C
- Excellent dynamic performance
- Range 0 settling time 1 µs
- Range 1 settling time 2 µs
- Range 2 settling time 5 µs
- Range 3 settling time 10 µs
- Kelvin-connected architecture eliminates gain error due to switch resistance over temperature.
- Single-supply operation: +2.7 V to +5.5 V (dual-supply operation: ±1.85 V to ±2.75 V)
- Wide gain bandwidth product: 8.5 MHz
- Wide operating temperature range: −40°C to +125°C
产品详情和应用
The ADA4352-2 is a compact, monolithic, dual-channel, precision, programmable gain transimpedance amplifier (PGTIA). The ADA4352-2 is a breakthrough solution for precisely measuring small currents over a wide dynamic range. The precision of the ADA4352-2 over a wide temperature range of −40°C to +125°C enables users to perform one calibration of the end equipment at room temperature, thereby saving test time and cost. The ADA4352-2 integrates four current-to-voltage gain selections per channel, and the gain is programmable using two logic pins per channel to provide a flexible, fully functional compact PGTIA solution. Additionally, with its robust output stage and low noise, the ADA4352-2 can directly drive 16-bit precision analog-to-digital converters (ADCs, such as AD4696), providing a complete analog front-end (AFE) to address the most challenging precision current measurement applications.
The ADA4352-2 is offered in a 3 mm × 3 mm LFCSP, reducing the printed circuit board (PCB) area by up to 10 times relative to a discrete design using standalone operational amplifiers (op amps) and switches.
Applications
- Precision current to voltage (I to V) conversion
- Programmable gain TIAs
- Photodetector interface and amplification
- Optical networking equipment
- Optical power measurement
- Instrumentation—spectroscopy and chromatography
- Precision data acquisition systems (DAQ)
