ADS8422
- Fully Differential Input with Pseudo-Bipolar Input Range -4 V to +4 V
- 16-Bit NMC at 4 MSPS
- 1 LSB INL Typ
- 92dB SNR, -102dB THD Typ with 100-kHz Input
- Internal 4.096-V Reference and Reference Buffer
- REFIN/2 Available for Setting Analog Input Common-Mode Voltage
- Zero Latency
- High-Speed Parallel Interface
- Single Supply Operation Capability
- Low Power: 155 mW at 4 MHz Typ, Flexible Power-Down Scheme
- Pin-Out Similar to ADS8412/8402
- 48-Pin 9×9 TQFP Package
- APPLICATIONS
- DWDM
- Instrumentation
- High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
- Transducer Interface
- Medical Instruments
- Spectrum Analysis
- ATE
The ADS8422 is a 16-bit, 4-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based multi-bit SAR A/D converter with inherent sample and hold. This converter includes a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.
The ADS8422 has a fully differential, pseudo-bipolar input. It is available in a 48-lead TQFP package and is characterized over the industrial -40°C to +85°C temperature range.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | 16-Bit 4MSPS Fully Differential Pseudo Bipolar Input Micro Power Sampling ADC datasheet (Rev. B) | 06 Dec 2006 | |
White paper | Voltage-reference impact on total harmonic distortion | 01 Aug 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 17 Mar 2011 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | 10 Nov 2010 | ||
Application note | ADS8422 Example Programs | 30 Aug 2006 | ||
Application note | Interfacing the ADS8401/ADS8411 to TMS320C6713 DSP | 23 Sep 2004 | ||
Application note | Interfacing the ADS8402/ADS8412 to TMS320C6713 DSP | 23 Sep 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
5-6KINTERFACE — 5-6K Interface Evaluation Module
The interface board consists of two signal conditioning sites, two serial EVM sites, and a parallel EVM site. Regardless of the interface type, all EVMs compatible with the 5-6K Interface Board have a standard analog interface and standard power connector. Three position screw terminals J1 and J2 (...)
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
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
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
Products
High-speed ADCs (≥10 MSPS)
Precision ADCs
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
TQFP (PFB) | 48 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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