ADS7057
- 2.5-MSPS Throughput
- Small Package Size:
- X2QFN-8 Package (1.5 mm × 1.5 mm)
- Fully Differential Input Range: ±AVDD
- Wide Operating Range:
- AVDD: 2.35 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:
- 14-Bit NMC DNL, ±0.9-LSB INL
- 79.5-dB SINAD at 2 kHz
- 77-dB SINAD at 1 MHz
- Low Power Consumption:
- 3.6 mW at 2.5 MSPS With 3.3-V AVDD
- 160 µW at 100 kSPS With 3.3-V AVDD
- 82 µW at 100 kSPS With 2.5-V AVDD
- Integrated Offset Calibration
- SPI-Compatible Serial Interface: 60 MHz
- JESD8-7A Compliant Digital I/O
The ADS7057 device belongs to a family of pin-to-pin compatible, high-speed, low-power, single-channel successive-approximation register (SAR) type analog-to-digital converters (ADCs). The device family includes multiple resolutions, throughputs, and analog input variants (see Table 1 for a list of devices).
The ADS7057 is a 14-bit, 2.5-MSPS SAR ADC that supports fully-differential inputs in the range of ±AVDD, for AVDD in the range of 2.35 V to 3.6 V.
The internal offset calibration feature maintains excellent offset specifications over the entire AVDD and temperature operating range.
The device supports an SPI-compatible serial interface that is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for both conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interfacing to a variety of host controllers. The ADS7057 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).
The ADS7057 is available in an 8-pin, small, X2QFN package and is specified over the extended industrial temperature range (–40°C to +125°C). The small form-factor and extremely-low power consumption make this device suitable for space-constrained and battery-powered applications that require high-speed, high-resolution data acquisition.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS7057 14-Bit, 2.5-MSPS, Differential Input, Small-Size, Low-Power SAR ADC datasheet | PDF | HTML | 07 Dec 2017 |
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 | |
Application brief | Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs | 03 Oct 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS7057EVM-PDK — ADS7057 14-Bit, 2.5MSPS, Small-Size Low-Power SAR ADC Performance Demonstration Kit (PDK)
The ADS7057 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the 14-bit, ADS7057 successive approximation register (SAR) analog-to-digital converter (ADC).
The PDK includes the ADS7057 evaluation board, precision host interface (PHI) controller board, and (...)
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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)
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
RF receivers
RF transmitters
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
Supported products & hardware
Products
Series voltage references
Precision ADCs
Biosensing AFEs
Integrated precision ADCs & DACs
High-speed ADCs (≥10 MSPS)
Precision DACs (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
X2QFN (RUG) | 8 | Ultra Librarian |
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