Product details

Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 5000 Interface type Parallel Architecture Delta-Sigma Input type Differential Multi-channel configuration Rating Catalog Reference mode Ext, Int Input range (Max) (V) 4.7 Input range (Min) (V) 0 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 560 Analog voltage AVDD (Min) (V) 4.75 SNR (dB) 84 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 0.75 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.25
Resolution (Bits) 16 Number of input channels 1 Sample rate (Max) (kSPS) 5000 Interface type Parallel Architecture Delta-Sigma Input type Differential Multi-channel configuration Rating Catalog Reference mode Ext, Int Input range (Max) (V) 4.7 Input range (Min) (V) 0 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 560 Analog voltage AVDD (Min) (V) 4.75 SNR (dB) 84 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 0.75 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.25
HTQFP (PAP) 64 100 mm² 10 x 10
  • Data Rate: 5MSPS (10MSPS in 2X Mode)
  • Signal-to-Noise Ratio: 88dB
  • Total Harmonic Distortion: –99dB
  • Spurious-Free Dynamic Range: 101dB
  • Linear Phase with 2.45MHz Bandwidth
  • Passband Ripple: ±0.0025dB
  • Selectable On-Chip Reference
  • Directly Connects to TMS320C6000 DSPs
  • Easily Upgradeable to 18 Bits with the ADS1625 and ADS1626
  • Adjustable Power Dissipation: 315 to 570mW
  • Power Down Mode
  • Supplies:
    • Analog +5V
    • Digital +3V
    • Digital I/O +2.7 to +5.25V
  • APPLICATIONS
    • Scientific Instruments
    • Automated Test Equipment
    • Data Acquisition
    • Medical Imaging
    • Vibration Analysis

PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

  • Data Rate: 5MSPS (10MSPS in 2X Mode)
  • Signal-to-Noise Ratio: 88dB
  • Total Harmonic Distortion: –99dB
  • Spurious-Free Dynamic Range: 101dB
  • Linear Phase with 2.45MHz Bandwidth
  • Passband Ripple: ±0.0025dB
  • Selectable On-Chip Reference
  • Directly Connects to TMS320C6000 DSPs
  • Easily Upgradeable to 18 Bits with the ADS1625 and ADS1626
  • Adjustable Power Dissipation: 315 to 570mW
  • Power Down Mode
  • Supplies:
    • Analog +5V
    • Digital +3V
    • Digital I/O +2.7 to +5.25V
  • APPLICATIONS
    • Scientific Instruments
    • Automated Test Equipment
    • Data Acquisition
    • Medical Imaging
    • Vibration Analysis

PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

The ADS1605 and ADS1606 are high-speed, high-precision, delta-sigma analog-to-digital converter (ADCs) with 16-bit resolution. The data rate is 5 mega-samples per second (MSPS), the bandwidth (–3dB) is 2.45MHz, and passband ripple is less than ±0.0025dB (to 2.2MHz). Both devices offer outstanding performance at these speeds with a signal-to-noise ratio up to 88dB, total harmonic distortion down to –99dB, and a spurious-free dynamic range up to 101dB. For even higher-speed operation, the data rate an be doubled to 10MSPS in 2X mode. The ADS1606 includes an adjustable first-in first-out buffer (FIFO) for the output data.

The input signal is measured against a voltage reference that can be generated on-chip or supplied externally. The digital output data is provided over a simple parallel interface that easily connects to digital signal processors (DSPs). An out-of-range monitor reports when the input range has been exceeded. The ADS1605/6 operate from a +5V analog supply (AVDD) and +3V digital supply (DVDD). The digital I/O supply (IOVDD) operates from +2.7 to +5.25V, enabling the digital interface to support a range of logic families. The analog power dissipation is set by an external resistor and can be reduced when operating at slower speeds. A power down mode, activated by a digital I/O pin, shuts down all circuitry. The ADS1605/6 are offered in a TQFP-64 package using TI PowerPAD™ technology.

The ADS1605 and ADS1606, along with their 18-bit counterparts, the ADS1625 and ADS1626, are well suited for the demanding measurement requirements of scientific instrumentation, automated test equipment, data acquisition, and medical imaging.

The ADS1605 and ADS1606 are high-speed, high-precision, delta-sigma analog-to-digital converter (ADCs) with 16-bit resolution. The data rate is 5 mega-samples per second (MSPS), the bandwidth (–3dB) is 2.45MHz, and passband ripple is less than ±0.0025dB (to 2.2MHz). Both devices offer outstanding performance at these speeds with a signal-to-noise ratio up to 88dB, total harmonic distortion down to –99dB, and a spurious-free dynamic range up to 101dB. For even higher-speed operation, the data rate an be doubled to 10MSPS in 2X mode. The ADS1606 includes an adjustable first-in first-out buffer (FIFO) for the output data.

The input signal is measured against a voltage reference that can be generated on-chip or supplied externally. The digital output data is provided over a simple parallel interface that easily connects to digital signal processors (DSPs). An out-of-range monitor reports when the input range has been exceeded. The ADS1605/6 operate from a +5V analog supply (AVDD) and +3V digital supply (DVDD). The digital I/O supply (IOVDD) operates from +2.7 to +5.25V, enabling the digital interface to support a range of logic families. The analog power dissipation is set by an external resistor and can be reduced when operating at slower speeds. A power down mode, activated by a digital I/O pin, shuts down all circuitry. The ADS1605/6 are offered in a TQFP-64 package using TI PowerPAD™ technology.

The ADS1605 and ADS1606, along with their 18-bit counterparts, the ADS1625 and ADS1626, are well suited for the demanding measurement requirements of scientific instrumentation, automated test equipment, data acquisition, and medical imaging.

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Technical documentation

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Type Title Date
* Data sheet 16-Bit, 5MSPS Analog-to-Digital Converter datasheet (Rev. H) 16 May 2007
Application note ADS16xx Reference Options (Rev. A) 09 Mar 2022
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Application note Operating ADS1605 and ADS1606 in 2X Mode: 10 MSPS (Rev. A) 06 Apr 2018
Application note Digital Filter Types in Delta-Sigma ADCs 27 Jun 2017
White paper Voltage-reference impact on total harmonic distortion 01 Aug 2016
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 Mar 2015
Analog Design Journal How delta-sigma ADCs work, Part 2 09 Nov 2011

Design & development

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Simulation model

ADS1605 IBIS Model

SBAM075.ZIP (48 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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TINA-TI — SPICE-based analog simulation program

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Calculation tool

ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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Design tool

ADC-TO-VREF-SELECT — ADC to series voltage reference selection tool

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired input voltage, and the tool will list the top three voltage reference recommendations. There is also an option to use (...)
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