AFE2256 Series
256-channel analog front end (AFE) for digital X-ray flat-panel detectors
Manufacturer: Texas Instruments
Catalog
256-channel analog front end (AFE) for digital X-ray flat-panel detectors
Key Features
• 256 ChannelsOn-Chip, 16-Bit ADCPhotodiode Short ImmunityHigh Performance:Noise: 750 Electrons RMS (1.2-pC Input Charge Range)Low Correlated NoiseIntegral Nonlinearity: ±2 LSB with Internal 16-Bit ADCScan Time: < 20 µs to 204.8 µsIntegration:Six Selectable, Full-Scale Input Ranges: 0.6 pC (Minimum) to 9.6 pC (Maximum)Internal Timing Generator (TG)Built-In Correlated Double SamplerPipelined Integrate-and-Read for Improved Throughput—Data-Read During IntegrationSerial LVDS OutputSimple Power-Supply Scheme:AVDD1 = 1.85 VAVDD2 = 3.3 VLow Power ConsumptionNap and Total Power-Down ModesCustom Chip-On-Film (COF) Packages256 ChannelsOn-Chip, 16-Bit ADCPhotodiode Short ImmunityHigh Performance:Noise: 750 Electrons RMS (1.2-pC Input Charge Range)Low Correlated NoiseIntegral Nonlinearity: ±2 LSB with Internal 16-Bit ADCScan Time: < 20 µs to 204.8 µsIntegration:Six Selectable, Full-Scale Input Ranges: 0.6 pC (Minimum) to 9.6 pC (Maximum)Internal Timing Generator (TG)Built-In Correlated Double SamplerPipelined Integrate-and-Read for Improved Throughput—Data-Read During IntegrationSerial LVDS OutputSimple Power-Supply Scheme:AVDD1 = 1.85 VAVDD2 = 3.3 VLow Power ConsumptionNap and Total Power-Down ModesCustom Chip-On-Film (COF) Packages
Description
AI
The AFE2256 is a 256-channel, analog front-end (AFE) designed to suit the requirements of flat-panel detector (FPD) based digital x-ray systems. The device includes 256 integrators, a programmable gain amplifier (PGA) for full-scale charge level selection, a correlated double sampler with dual banking, and 256:4 analog multiplexers.
The device also features four 16-bit successive-approximation register (SAR) analog-to-digital converters (ADCs). Serial data from the ADCs are available in low-voltage differential signaling (LVDS) format.
The nap and power-down modes enable substantial power savings, and are especially useful in battery-powered systems.
To request a full datasheet or other design resources:request AFE2256
The AFE2256 is a 256-channel, analog front-end (AFE) designed to suit the requirements of flat-panel detector (FPD) based digital x-ray systems. The device includes 256 integrators, a programmable gain amplifier (PGA) for full-scale charge level selection, a correlated double sampler with dual banking, and 256:4 analog multiplexers.
The device also features four 16-bit successive-approximation register (SAR) analog-to-digital converters (ADCs). Serial data from the ADCs are available in low-voltage differential signaling (LVDS) format.
The nap and power-down modes enable substantial power savings, and are especially useful in battery-powered systems.
To request a full datasheet or other design resources:request AFE2256
