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ADC3683

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Dual-channel, 18-bit, 65-MSPS, low-noise, ultra-low-power analog-to-digital converter (ADC)

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Product details

Parameters

Sample rate (Max) (MSPS) 65 Resolution (Bits) 18 Number of input channels 2 Interface type Serial LVDS Analog input BW (MHz) 900 Features High Dynamic Range, High Performance, Low Power Rating Catalog Input range (Vp-p) 3.2 Power consumption (Typ) (mW) 186 Architecture SAR SNR (dB) 83.8 ENOB (Bits) 13.7 SFDR (dB) 89 Operating temperature range (C) -40 to 105 Input buffer No open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

WQFN (RSB) 40 25 mm² 5 x 5 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • Dual Channel ADC
  • 18-bit 10/25/65 MSPS ADC
  • Noise Floor: -160 dBFS/Hz
  • Low Power and Optimized Power Scaling: 50 mW/ch (10 MSPS) to 94 mW/ch (65 MSPS)
  • Latency: 1-2 clock cycles
  • 18-bit, no missing codes
  • INL/DNL: ±7/ ±0.7 LSB (typ)
  • Reference: External or Internal
  • Input Bandwidth: 900MHz (3-dB)
  • Industrial Temperature Range: -40 to +105°C
  • On-chip digital filter (Optional)
    • Decimation by 2, 4, 8, 16, 32
    • 32-bit NCO
  • Serial LVDS digital interface (2-, 1- and 1/2-wire)
  • Small Footprint: 40-QFN (5x5 mm) Package
  • Spectral Performance (fIN = 5 MHz):
    • SNR: 83.8 dBFS
    • SFDR: 89 dBc HD2, HD3
    • SFDR: 101 dBFS Worst Spur
  • Spectral Performance (fIN = 20MHz):
    • SNR: 82.6 dBFS
    • SFDR: 85 dBc HD2, HD3
    • SFDR: 97 dBFS Worst Spur

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open-in-new Find other High-speed ADCs (>10MSPS)

Description

The ADC3681, 82, 83 (ADC368x) is a low noise, ultra-low power 18-bit 65 MSPS high-speed dual channel ADC family. Designed for lowest noise performance, it delivers a noise spectral density of -160 dBFS/Hz combined with excellent linearity and dynamic range. The ADC368x offers excellent DC precision together with IF sampling support which makes it ideally suited for a wide range of applications. High-speed control loops benefit from the short latency as low as only 1 clock cycle. The ADC consumes only 94 mW/ch at 65 Msps and its power consumption scales very well with lower sampling rates.

The ADC368x uses a serial LVDS (SLVDS) interface to output the data which minimizes the number of digital interconnects. The device supports two-lane, one-lane and half-lane options. The ADC36xx is a pin to pin compatible family of ADCs with 16 and 18-bit resolution and different speed grades. It comes in a 40-pin QFN package (5 x 5mm) and supports the extended industrial temperature range from -40 to +105⁰C.

open-in-new Find other High-speed ADCs (>10MSPS)
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Technical documentation

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Type Title Date
* Data sheet ADC368x 18-bit 0.5 to 65-MSPS Low Noise Ultra-low Power Dual Channel ADC datasheet Jul. 27, 2017
Certificate ADC3683EVM EU RoHS Declaration of Conformity (DoC) Dec. 23, 2020
Application note High Speed SAR ADC: Data Rate, Performance, and Pin Count Optimization Dec. 08, 2020
User guide ADC368xEVM User's Guide Oct. 30, 2020
Technical article Keys to quick success using high-speed data converters Oct. 13, 2020
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications Oct. 12, 2020
Application note How to simplify AFE filtering via high‐speed ADCs with internal digital filters Jan. 10, 2020
Technical article How to achieve fast frequency hopping Mar. 03, 2019
Technical article RF sampling: Learning more about latency Feb. 09, 2017
Technical article Why phase noise matters in RF sampling converters Nov. 28, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
249
Description

The ADC3683 evaluation module (EVM) is a platform that demonstrates the performance of the ultra-low-power, high-linearity ADC3683. Onboard voltage regulation and flexible analog input options allow easy evaluation for many different applications.

For a complete evaluation system, use the TSW1400EVM (...)

Features
  • Serial LVDS interface
  • USB powered with onboard power regulation
  • Pin compatible with ADC366x and ADC368x products
  • THS4541 FDA and Balun-coupled inputs allow for flexible evaluation
  • TSW1400EVM and DATACONVERTERPRO-SW allow for easy data capture
  • FMC connector allows for easy integration with FPGA (...)

Design tools & simulation

SIMULATION MODEL Download
SBAM400.ZIP (52 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
WQFN (RSB) 40 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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