ADS7953
12-Bit, 1-MSPS, 16-Channel, Single-Ended, microPower SAR ADC with Serial I/F
ADS7953
- 1-MHz Sample Rate Serial Devices
- Product Family of 12-, 10-, 8-Bit Resolution
- Zero Latency
- 20-MHz Serial Interface
- Analog Supply Range: 2.7 to 5.25 V
- I/O Supply Range: 1.7 to 5.25 V
- Two SW Selectable Unipolar, Input Ranges: 0 to VREF and 0 to 2 x VREF
- Auto and Manual Modes for Channel Selection
- 4-, 8-Channel Devices and 12-, 16-Channel Devices Share the Same Footprint
- Two Programmable Alarm Levels per Channel
- Four Individually Configurable GPIOs in TSSOP Package: One GPIO in VQFN Package
- Typical Power Dissipation: 14.5 mW (+VA = 5 V, +VBD = 3 V) at 1 MSPS
- Power-Down Current (1 µA)
- Input Bandwidth (47 MHz at 3 dB)
- 38-, 30-Pin TSSOP and 32-, 24-Pin VQFN Packages
The ADS79xx is a 12-, 10-, 8-bit pin compatible multichannel analog-to-digital converter family. The device comparison table shows all twelve devices from this product family.
The devices include a capacitor based SAR A/D converter with inherent sample and hold.
The devices accept a wide analog supply range from 2.7 V to 5.25 V. Very low power consumption makes these devices suitable for battery-powered and isolated power-supply applications.
A wide 1.7-V to 5.25-V I/O supply range facilitates a glueless interface with the most commonly used digital hosts. The serial interface is controlled by CS and SCLK for easy connection with microprocessors and DSP.
The input signal is sampled with the falling edge of CS. It uses SCLK for conversion, serial data output, and reading serial data in. The devices allow auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.
There are two software selectable input ranges (0 V to VREF and 0 V to 2 × VREF), individually configurable GPIOs (four in case of the TSSOP and one on the VQFN package devices), and two programmable alarm thresholds per channel. These features make the devices suitable for most data acquisition applications.
The devices offer an attractive power-down feature. This is extremely useful for power saving when the device is operated at lower conversion speeds.
The 16-, 12-channel devices from this family are available in a 38-pin TSSOP and 32 pin VQFN package and the 4/8-channel devices are available in a 30-pin TSSOP and 24 pin VQFN packages.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS79xx Pin Compatible, 12-, 10-, 8-Bit, 1-MSPS, 16-, 12-, 8-, 4-Channel, Single-Ended, Serial Interface ADCs datasheet (Rev. C) | PDF | HTML | 24 Jul 2018 |
EVM User's guide | ADS7953EVM-PDK Evaluation Module | PDF | HTML | 08 Aug 2023 | |
Certificate | ADS7953EVM-PDK EU Declaration of Conformity (DoC) (Rev. A) | 03 Aug 2023 | ||
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 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS7953EVM-PDK — ADS7953 performance demonstration kit
The ADS7953EVM-PDK is an evaluation platform for the ADS7953 device, which is a 12-bit, 16-channel, 1-MSPS, single-ended analog input, successive approximation register (SAR) analog-to-digital converter (ADC) that features an easy-to-use serial programming interface (SPI). The ADS7953EVM-PDK eases (...)
ADS7953 TINA-TI Transient Reference Design
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-00420 — ADC-based, digitally-isolated, wide-input, 16-channel, AC/DC binary input reference design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
TSSOP (DBT) | 38 | Ultra Librarian |
VQFN (RHB) | 32 | 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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