ADS7955-Q1
- Qualified for Automotive Applications
- 1-MHz Sample Rate Serial Devices
- 10-Bit Resolution
- Zero Latency
- 20-MHz Serial Interface
- Analog Supply Range: 2.7 to 5.25 V
- I/O Supply Range: 1.7 to 5.25 V
- Two SW Selectable Unipolar, Input Ranges: 0 to 2.5V and 0 to 5V
- Auto and Manual Modes for Channel Selection
- 8-Channel Device can Share 16 Channel Device Footprint
- Two Programmable Alarm Levels per Channel
- Four Individually Configurable GPIOs for TSSOP Package Devices
- Typical Power Dissipation: 14.5 mW (+VA = 5 V, +VBD = 3 V) at 1 MSPS
- Power-Down Current (1 µA)
- Input Bandwidth (47 MHz at 3 dB)
- 30-Pin TSSOP Package
The ADS7955-Q1 is a 10-bit multichannel analog-to-digital converter.
The device includes a capacitor based SAR A/D converter with inherent sample and hold.
The device accepts a wide analog supply range from 2.7V to 5.25V. Very low power consumption makes this device suitable for battery-powered and isolated power supply applications.
A wide 1.7V to 5.25V I/O supply range facilitates a glue-less interface with the most commonly used CMOS digital hosts.
The serial interface is controlled by CS and SCLK for easy connection with microprocessors and DSP.
The input signal is sampled with the falling edge of CS. It uses SCLK for conversion, serial data output, and reading serial data in. The device allows auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.
There are two software selectable input ranges (0V - 2.5V and 0V - 5V), four individually configurable GPIOs, and two programmable alarm thresholds per channel. These features make the device suitable for most data acquisition applications.
The device offers an attractive power-down feature. This is extremely useful for power saving when the device is operated at lower conversion speeds.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 10-Bit, 1 MSPS, 8Channel, Single-Ended, MicroPower, Serial Interface ADC datasheet | 2011年 12月 16日 | |
Functional safety information | ADS7955-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2020年 10月 16日 | |
Application brief | Temperature Monitoring in HEV and EV Traction Inverter Systems Using ADS795x-Q1 | 2018年 6月 28日 | ||
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015年 5月 21日 |
設計與開發
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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
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TSSOP (DBT) | 30 | 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。