Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS8405

ACTIVE

16-Bit 1.25 MSPS Unipolar Input Micro Power Sampling ADC

Order now
Data sheet

ADS8405

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type Byte-Wide, Parallel Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.2 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 155 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 86 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 16 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type Byte-Wide, Parallel Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.2 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 155 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 86 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TQFP (PFB) 48 81 mm² (9 mm × 9 mm)
  • Unipolar Pseudo-Differential Input, 0 V to Vref
  • 16-Bit NMC at 1.25 MSPS
  • ±2 LSB INL Max, -1/+1.5 LSB DNL
  • 86 dB SNR, -90 dB THD at 100 kHz Input
  • Zero Latency
  • Internal 4.096-V Reference
  • High-Speed Parallel Interface
  • Single 5-V Analog Supply
  • Wide I/O Supply: 2.7 V to 5.25 V
  • Low Power: 155 mW at 1.25 MHz Typ
  • Pin Compatible With ADS8411/8401
  • 48-Pin TQFP Package
  • APPLICATIONS
    • DWDM
    • Instrumentation
    • High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
    • Transducer Interface
    • Medical Instruments
    • Communications
  • Unipolar Pseudo-Differential Input, 0 V to Vref
  • 16-Bit NMC at 1.25 MSPS
  • ±2 LSB INL Max, -1/+1.5 LSB DNL
  • 86 dB SNR, -90 dB THD at 100 kHz Input
  • Zero Latency
  • Internal 4.096-V Reference
  • High-Speed Parallel Interface
  • Single 5-V Analog Supply
  • Wide I/O Supply: 2.7 V to 5.25 V
  • Low Power: 155 mW at 1.25 MHz Typ
  • Pin Compatible With ADS8411/8401
  • 48-Pin TQFP Package
  • APPLICATIONS
    • DWDM
    • Instrumentation
    • High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
    • Transducer Interface
    • Medical Instruments
    • Communications

The ADS8405 is a 16-bit, 1.25-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8405 offers a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.

The ADS8405 has a unipolar pseudo-differential input. It is available in a 48-lead TQFP package and is characterized over the industrial –40°C to 85°C temperature range.

The ADS8405 is a 16-bit, 1.25-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8405 offers a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.

The ADS8405 has a unipolar pseudo-differential input. It is available in a 48-lead TQFP package and is characterized over the industrial –40°C to 85°C temperature range.
filter Find other Precision ADCs
Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 6
Top documentation Type Title Format options Date
* Data sheet ADS8405: 16-Bit, 1.25-MSPS Unipolar Pseuso-Diff Input, Micropower Sampling ADC datasheet Dec 17, 2004
White paper Voltage-reference impact on total harmonic distortion Aug 1, 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 Mar 17, 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) Nov 10, 2010
Application note Using ADS8411 in a Multiplexed Analog Input Application (Rev. A) Feb 15, 2006

Design & development

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

Simulation model

ADS8405 TINA-TI Reference Design

SLAM319.TSC (2842 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

ADS8405 TINA-TI Spice Model

SLAM318.ZIP (28 KB) - TINA-TI Spice model
Supported products & hardware
Calculation tool

ANALOG-ENGINEER-CALC — PC software 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 operational-amplifier (...)

Supported products & hardware
Calculation tool

JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

Supported products & hardware
Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

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 reference voltage, and the tool will list up to two voltage reference recommendations.
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
TQFP (PFB) 48 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos