ADS8638
- Selectable Input Range:
±10V, ±5V, ±2.5V, 0V to 10V, or
0V to 5V
Up to ±12V with External Reference - No Latent Conversions Up to 1MSPS
- Outstanding Performance:
12 Bits No Missing Codes
INL: ±0.9LSB
SNR: 71.8dB - Highly Integrated:
4- or 8-Channel Input Mux
Temperature Sensor
Internal Voltage Reference
Alarm Thresholds for Each Channel - Low Power:
14.45mW at 1MSPS
5.85mW at 0.1MSPS
Flexible Power-Down Mode - SPI™-Compatible Serial Interface
- Extended Temperature Range:
–40°C to +125°C - Small Footprint: 4mm × 4mm QFN Package
The ADS8634 and ADS8638 (ADS8634/8) are 12-bit analog-to-digital converters (ADCs) capable of measuring inputs up to ±10V at 1MSPS. Using a successive approximation register (SAR) core, these ADCs provide a sample-and-hold front-end with no latency in conversions. The ADS8634 includes an input multiplexer (mux) for measuring up to four inputs. The ADS8638 can measure up to eight inputs.
In addition to the input multiplexer, the ADS8634/8 feature an internal temperature sensor, voltage reference, and a digital comparator for setting alarm thresholds on each input; therefore, a minimal amount of external components are required. A simple SPI-compatible interface provides for communication and control. The digital supply operates from 5V all the way down to 1.8V for direct connection to a wide range of processors and controllers.
Ideal for demanding industrial measurement applications, the ADS8634/8 are fully specified over the extended industrial temperature range of –40°C to +125°C and are available in a small form-factor QFN-24 package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 12-Bit, 1MSPS, 4-/8-Chan, Bipolar-Input, SAR ADC w/ Software-Selectable Ranges datasheet (Rev. A) | 2011年 8月 3日 | |
Application brief | Precision ADCs in Servo Drives | PDF | HTML | 2024年 8月 22日 | |
EVM User's guide | ADS8638EVM-PDK User Guide (Rev. A) | 2016年 2月 2日 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015年 5月 21日 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 2011年 3月 17日 |
設計與開發
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ADS8638EVM-PDK — ADS8638 性能展示套件
The ADS8638EVM-PDK is designed to evaluate the ADS8614, ADS8618, ADS8634, and ADS8638 analog to digital converters. These 12/16-bit, four or eight channel, SAR converters offer multiple true bipolar and unipolar ranges in addition to a variety of alarm options. An LED is installed on the EVM board (...)
ADS8638 TINA-TI Transient Reference Design (Rev. A)
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 (...)
支援產品和硬體
產品
精密度運算放大器 (Vos<1mV)
一般用途運算放大器
音訊運算放大器
轉阻放大器
高速運算放大器 (GBW ≥ 50 MHz)
功率運算放大器
視訊放大器
線路驅動器
轉導放大器與雷射驅動器
全差分放大器
精確 ADC
生物感測 AFE
高速 ADC (≥10 MSPS)
接收器
觸控式螢幕控制器
差分放大器
儀器放大器
音訊線路接收器
類比電流感測放大器
數位電源監測器
配備整合式分流電阻器的類比電流感測放大器
具整合式分流電阻器的數位電源監測器
晶粒與晶圓服務
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TIDA-00119 — 適用於可編程邏輯控制器 (PLC) 的 12 位元、八通道整合式類比輸入模組
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RGE) | 24 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。