ADS8900B
20-bit, 1-MSPS, one-channel SAR ADC with internal VREF buffer, internal LDO and enhanced SPI
ADS8900B
- Resolution: 20-Bits
- High Sample Rate With No Latency Output:
- ADS8900B: 1-MSPS
- ADS8902B: 500-kSPS
- ADS8904B: 250-kSPS
- Integrated LDO Enables Low-Power, Single-Supply Operation
- Low Power Reference Buffer with No Droop
- Excellent AC and DC Performance:
- SNR: 104.5-dB, THD: –125-dB
- DNL: ±0.2-ppm, 20-Bit No-Missing-Codes
- INL: ±1-ppm
- Wide Input Range:
- Unipolar Differential Input Range: ±VREF
- VREF Input Range: 2.5-V to 5-V
- Enhanced-SPI Digital Interface
- Interface SCLK : 22-MHz at 1-MSPS.
- Configurable Data Parity Output.
- Extended Temperature Range: –40°C to +125°C
- Small Footprint: 4-mm × 4-mm VQFN
The ADS8900B, ADS8902B, and ADS8904B (ADS890xB) belong to a family of pin-to-pin compatible, high-speed, single-channel, high-precision, 20-bit successive-approximation-register (SAR) analog-to-digital converters (ADCs) with an integrated reference buffer and integrated low-dropout regulator (LDO). The device family includes the ADS891xB (18-bit) and ADS892xB (16-bit) resolution variants.
The ADS89xxB boosts analog performance while maintaining high-resolution data transfer by using TI’s Enhanced-SPI feature. Enhanced-SPI enables ADS89xxB in achieving high throughput at lower clock speeds, there by simplifying the board layout and lowering system cost. Enhanced-SPI also simplifies the host’s clocking-in of data there by making it ideal for applications involving FPGAs, DSPs. ADS89xxB is compatible with standard SPI Interface.
The ADS89xxB has an internal data parity feature which can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS8900BEVM-PDK — ADS8900B Fully-Differential Input, 20-Bit SAR ADC EVM Performance Demonstration Kit (PDK)
The ADS8900B evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8900B successive-approximation register (SAR) analog-to-digital converter (ADC), which is a fully-differential input, 20-bit, 1-MSPS device. (...)
PSIEVM — Precision signal injector (PSI) evaluation module for testing ADC performance
The precision signal injector (PSI) is a platform for evaluating the performance of successive-approximation register (SAR) analog-to-digital converters (ADCs). The board provides a low-distortion, low-noise, 2-kHz input signal for driving the input of the ADC, and pairs with most of the (...)
ADC-TO-VREF-SELECT — ADC to Voltage Reference Selection Tool
Supported products & hardware
Products
Precision ADCs
Biosensing AFEs
Integrated precision ADCs & DACs
High-speed ADCs (≥10 MSPS)
Series voltage references
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
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-01056 — 20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
TIDA-01054 — Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems
TIDA-01351 — High-Resolution, High-SNR True Raw Data Conversion Reference Design for Ultrasound CW Doppler
TIDA-01057 — Reference Design Maximizing Signal Dynamic Range for True 10 Vpp Differential Input to 20 bit ADC
TIDA-01037 — 20-bit, 1-MSPS Isolator Optimized Data Acquisition Reference Design Maximizing SNR and Sample Rate
TIDA-01035 — 20-bit Isolated Data Acquisition Reference Design Optimizing Jitter for Max SNR and Sample Rate
- Significantly improves high frequency AC signal chain performance (SNR and THD) by (...)
TIPD211 — 20-bit, 1-MSPS, 4-Ch Small Form Factor Design for Test and Measurement Applications Reference Design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RGE) | 24 | Ultra Librarian |
Ordering & quality
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- 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.
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