Support software
ADS7953-MSPM0-EXAMPLE-CODE — ADS7953 and MSPM0 code example
Expedite your embedded design using this example code for the ADS975x product family
Data sheet
ADS7955-Q1
- Qualified for Automotive Applications
- 1-MHz Sample Rate Serial Devices
- 10-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 2.5V and 0 to 5V
- Auto and Manual Modes for Channel Selection
- 8-Channel Device can Share 16 Channel Device Footprint
- Two Programmable Alarm Levels per Channel
- Four Individually Configurable GPIOs for TSSOP Package Devices
- 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)
- 30-Pin TSSOP Package
The ADS7955-Q1 is a 10-bit multichannel analog-to-digital converter.
The device includes a capacitor based SAR A/D converter with inherent sample and hold.
The device accepts a wide analog supply range from 2.7V to 5.25V. Very low power consumption makes this device suitable for battery-powered and isolated power supply applications.
A wide 1.7V to 5.25V I/O supply range facilitates a glue-less interface with the most commonly used CMOS 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 device allows auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.
There are two software selectable input ranges (0V - 2.5V and 0V - 5V), four individually configurable GPIOs, and two programmable alarm thresholds per channel. These features make the device suitable for most data acquisition applications.
The device offers an attractive power-down feature. This is extremely useful for power saving when the device is operated at lower conversion speeds.
Technical documentation
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View all 4 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | 10-Bit, 1 MSPS, 8Channel, Single-Ended, MicroPower, Serial Interface ADC datasheet | 16 Dec 2011 | |
| Functional safety information | ADS7955-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 16 Oct 2020 | |
| Application brief | Temperature Monitoring in HEV and EV Traction Inverter Systems Using ADS795x-Q1 | 28 Jun 2018 | ||
| E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
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 (...)
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
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
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 (...)
Simulation tool
TINA-TI — SPICE-based analog simulation program
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (DBT) | 30 | Ultra Librarian |
Ordering & quality
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Information included:
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Support & training
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