Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

AFE3256TFV 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, correlated double samplers (CDSs) with dual banking, and 256:2 analog multiplexers. The device also features two 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.

Feature of AFE3256TFV

256 channels

On-chip, 16-bit ADC

High performance:

Noise: 440 electrons RMS (1.2-pC input charge range)

Low correlated noise

Full-channel integral nonlinearity: ±2 LSB at 16 bit

Scan time: < 16 µs to 204.8 µs

Integration:

Programmable full-scale input charge range: 0.3pC to 12.5pC with resolution of 0.3pC

Internal timing generator (TG)

Built-in correlated double sampler

Software programmable electron or hole integration mode

Pipelined integrate-and-read for improved throughput—data-read during integration

Serial LVDS output

On-chip temperature sensor

Simple power supply scheme:

Single 1.85V power supply operation

Multiple power modes with power consumption ranging from 1mW/ch to 2mW/ch

Power-down modes: sleep and standby

Binning mode support

Custom chip-on-film (COF) packages

Applications of AFE3256TFV

Flat-panel, X-ray detectors

Charge detectors

Capacitance measurement

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