ADS7044
Ultra-Low-Power Ultra-Small-Size SAR ADC | 12 Bit | 1MSPS | Fully Differential
ADS7044
- Industry’s First SAR ADC with Nanowatt Power Consumption:
- 261 µW at 1 MSPS with 1.8-V AVDD
- 900 µW at 1 MSPS with 3-V AVDD
- 90 µW at 100 kSPS with 3-V AVDD
- Less than 1 µW at 1 kSPS with 3-V AVDD
- Industry’s Smallest SAR ADC:
- X2QFN-8 Package with 2.25-mm2 Footprint
- 1-MSPS Throughput with Zero Data Latency
- Wide Operating Range:
- AVDD: 1.65 V to 3.6 V
- DVDD: 1.65 V to 3.6 V (Independent of AVDD)
- Temperature Range: –40°C to 125°C
- Excellent Performance:
- 12-Bit Resolution with NMC
- ±1-LSB (Max) DNL and INL
- 71-dB SNR with 3-V AVDD
- –85-dB THD with 3-V AVDD
- Unipolar, Differential Input Range: –AVDD to AVDD
- Integrated Offset Calibration
- SPI™-Compatible Serial Interface: 16 MHz
- JESD8-7A Compliant Digital I/O
The ADS7044 is a 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (±1.65 V to ±3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The device complies with the JESD8-7A standard for normal DVDD range (1.65 V to 1.95 V).
The device is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS7044 Ultra-Low Power, Ultra-Small Size, 12-Bit, 1-MSPS, SAR ADC datasheet (Rev. D) | PDF | HTML | 10 Dec 2015 |
Circuit design | Single-ended to diff. signal conversion using an op amp & FDA for unipolar signa (Rev. B) | PDF | HTML | 24 Sep 2024 | |
Circuit design | Single-ended-to-differential circuit using an op amp and FDA for bipolar signals (Rev. B) | PDF | HTML | 19 Sep 2024 | |
Application brief | Precision ADCs in Servo Drives | PDF | HTML | 22 Aug 2024 | |
Product overview | Precision ADCs for Motor Encoders and Position Sensing | PDF | HTML | 27 Mar 2023 | |
User guide | ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Evaluation Module (Rev. A) | PDF | HTML | 13 Jan 2022 | |
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.
ADS7042EVM-PDK — ADS7042 Ultra-Low-Power Ultra-Small-Size 12-Bit 1MSPS SAR ADC Performance Demonstration Kit (PDK)
The ADS7042 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the 12-bit, ADS7042 successive approximation register (SAR) analog-to-digital converter (ADC).
The PDK includes the ADS7042 evaluation board, precision host interface (PHI) controller board, and (...)
BOOST-ADS7042 — ADS7042 Ultra-Low Power Data Acquisition BoosterPack
The ADS7042 Ultra-Low Power Data Acquisition BoosterPack is a stand-alone system that converts analog sensor data into digital SPI data using the TI ADS7042 Successive Approximation Register Analog-to-Digital Converter. This BoosterPack has been designed to be compatible with the TI (...)
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
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VSSOP (DCU) | 8 | Ultra Librarian |
X2QFN (RUG) | 8 | 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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