AFE1256 Description
The AFE1256 is a 256-channel, analog front-end (AFE) designed to suit the requirements of flat-panel detectors (FPDs) based on digital X-ray systems. The device includes 256 integrators, a programmable gain amplifier (PGA) for full-scale, charge-level selection, a correlated double sampler (CDS) with dual banking, 256:4 analog multiplexers, and four 16-bit, successive-approximation register (SAR) analog-todigital...
AFE1256 Key Features
- 1 256 Channels
- On-Chip, 16-Bit ADC
- Photodiode Short Immunity
- Column Short Immunity
- High Performance
- Noise: 758 e-RMS with 28-pF Sensor Capacitor in 1.2-pC Range
- Integral Nonlinearity: ±2 LSB with Internal 16-Bit ADC
- Minimum Scan Time
- 37.9 µs in Normal Mode
- 20 µs in 2x Binning Mode