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Präzisions-ADCs
- ADS7057 — 14 Bit, 2,5 MSPS, kompakter, energieeffizienter SAR-ADC mit Differenzialeingang
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.
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | ADS7057 14-Bit, 2.5-MSPS, Differential Input, Small-Size, Low-Power SAR ADC datasheet | PDF | HTML | 07 Dez 2017 |
| Product overview | Precision ADCs for Motor Encoders and Position Sensing (Rev. A) | PDF | HTML | 28 Okt 2025 | |
| 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 | |
| EVM User's 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 Okt 2018 |
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
Der Leistungsdemonstrations-Bausatz (PDK) für das Evaluierungsmodul ADS7057 (EVM) ist eine Plattform zur Evaluierung des ADS7057-Analog-Digital-Wandlers (ADC) mit 14 Bit und sukzessivem Annäherungsregister (SAR).
Der PDK enthält die ADS7057-Evaluierungsplatine, die (...)
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 (...)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| X2QFN (RUG) | 8 | Ultra Librarian |
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Desktop software installer
General calculator tool for analog design support.
This is the first release of this tool.