ADS7038
8-channel, 1-MSPS, 12-bit analog-to-digital converter (ADC) with SPI, GPIOs and CRC
ADS7038
- Small package size:
- WQFN 3mm × 3mm
- 8 channels configurable as any combination of:
- Up to 8 analog inputs, digital inputs, or digital outputs
- GPIOs for I/O expansion:
- Open-drain, push-pull digital outputs
- Analog watchdog:
- Programmable thresholds per channel
- Event counter for transient rejection
- Wide operating ranges:
- AVDD: 2.35V to 5.5V
- DVDD: 1.65V to 5.5V
- –40°C to +125°C temperature range
- Enhanced-SPI digital interface:
- High-speed, 60MHz interface
- Achieve full throughput with >13.5MHz SPI
- CRC for read/write operation:
- CRC on data read/write
- CRC on power-up configuration
- Programmable averaging filters:
- Programmable sample size for averaging
- Averaging with internal conversions
- 16-bit resolution
The ADS7038 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.
The ADS7038 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7038 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7038 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS7038x Small, 8-Channel, 12-Bit ADC With SPI Interface, GPIOs, and CRC datasheet (Rev. C) | PDF | HTML | 05 Sep 2024 |
Application brief | Resolution-Boosting ADS7138 Using Programmable Averaging Filter | 01 Dec 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS7038Q1EVM-PDK — ADS7038-Q1 8-channel, 1-MSPS, 12-bit ADC evaluation module performance demonstration kit (PDK)
The ADS7038-Q1 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS7038-Q1 successive approximation register (SAR) analog-to-digital converter (ADC). ADS7038Q1EVM-PDK provides power and a communications card to easily connect to the (...)
ADS7038-C-EXAMPLE-CODE — ADS7038 example C code
Supported products & hardware
Products
Precision ADCs
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
SBAR008 — ADS7xx8 CRC Calculator
Supported products & hardware
Products
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 |
---|---|---|
WQFN (RTE) | 16 | 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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