IC manufacturers Texas Instruments

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Texas Instruments ADS4142IRGZR | Demoboard TIDA-01403

74-dB SNR, 10-MSPS, 14-Bit, Analog Front-End Reference Design for Thermal Imaging Cameras

Overview

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IC revisionE1

Description

This reference design is built keeping an electronic imaging system in mind. Image sensors today force heavy demands on ADCs in terms of: excellent linearity (DNL < 0.5 LSB and INL < 4 LSB), high resolution (12- to 18-bit), high speed (up to 20 MSPS), and high SNR (> 74-dB SNR) to assure superior image quality and freedom from distortion over time. Enabled by the low-noise, high-speed amplifier, fully differential amplifier (FDA), high-speed ADC, and low-noise LDO from TI, this reference design demonstrates how to design a high-performance analog signal chain for digitizing the pixel-output signal in thermal imaging cameras.

Features

  • SNR, ENOB and THD: > 74 dB, 12-bit and < -84 dB
  • Sampling speed: front-end circuit optimized for 10MSPS or lesser
  • Analog input type: single-ended unipolar signal
  • Integral Non-Linearity (INL) < 1 LSB (typical) and Differential Non-Linearity (DNL) < 0.5 LSB (typical)
  • Output data interface: 1.8V parallel CMOS or DDR LVDS
  • Overall power consumption: < 80 mW

Typical applications

  • Wireless Communications Infrastructure

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureQRISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
Packaging Samples
885012005043SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)33 pF ±5% 25 0402 -55 °C up to +125 °C 100010 GΩ NP0 Class I 1 0.5 0.5 0.25 7" Tape & Reel
Order Code Data­sheet Simu­lation
885012005043SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureQRISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
Packaging Samples