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参数资料
| 型号： | ADS7945SRTER |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC16 |
| 封装： | GREEN, PLASTIC, QFN-16 |
| 文件页数： | 1/49页 |
| 文件大小： | 1322K |
| 代理商： | ADS7945SRTER |
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SPI
AV D
D
DVDD
GND
AIN0P
AIN1N
AIN0N
AIN1P
PDEN
SAR
ADC
SCLK
SDO
CS
REFGND
REF
CHSEL
MUX
S/H
ADS7945
SPI
AV D
D
DVDD
GND
AIN0
AIN1GND
AIN0GND
AIN1
PDEN
SAR
ADC
SCLK
SDO
CS
REFGND
REF
CHSEL
MUX
S/H
ADS7946
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended,
Ultralow-Power Analog-to-Digital Converters
1
FEATURES
DESCRIPTION
The ADS7945/6 are 14-bit, 2 MSPS analog-to-digital
23
Sample Rate: 2 MSPS
converters (ADCs), with differential and single-ended
14-Bit, Pin-Compatible with 8/10/12-bit
inputs, respectively. The devices operate at a 2
ADS7947/8/9 Family (ADS7946)
MSPS sample rate with a standard 16-clock data
Outstanding Performance:
frame. The devices feature both outstanding dc
precision and excellent dynamic performance; the
– SNR: 84 dB (ADS7945)
ADS7946 is pin-compatible with the 8/10/12-bit
– No Missing Codes
ADS7947/8/9
devices.
The
devices
include
a
– INL: 1.5 LSB (max) (ADS7945)
two-channel
input
multiplexer
and
a
low-power
successive approximation register (SAR) ADC with
Low Power:
an inherent sample-and-hold (S/H) input stage.
– 11.6 mW at 2 MSPS Operation
The ADS7945/6 support a wide analog supply range
– Auto Power-Down at Lower Speeds:
that allows the full-scale input range to extend to
±5 V
– 7.2 mW at 500 kSPS
differential or 5 V single-ended. A simple SPI
, with
– 1.4 mW at 100 kSPS
a digital supply that can operate as low as 1.65 V,
allows for easy interfacing to a wide variety of digital
– 0.3 mW at 20 kSPS
controllers. Automatic power-down can be enabled
Wide Supply Range:
when operating at slower speeds to dramatically
– Analog: 2.7 V to 5.25 V
reduce power consumption.
– Digital: 1.65 V to AVDD
Offered in a tiny 3 mm
× 3 mm QFN package, the
Simple Serial Interface (SPI)
ADS7945/6 are fully specified over the extended
temperature range of
–40°C to +125°C and are
Fully Specified from
–40°C to +125°C
suitable for a wide variety of data acquisition
Tiny Footprint: 3 mm
× 3 mm QFN
applications where high performance, low power, and
small package size are key.
APPLICATIONS
Optical Networking
Medical Instrumentation
Battery-Powered Equipment
Data Acquisition Systems
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
SPI is a trademark of Motorola.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS7945SRTET | 功能描述:模数转换器 - ADC 14B,2MSPS,DUAL-CH, UNIPOLAR,DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS7946 | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital Converters |
| ADS7946EVM-PDK | 功能描述:数据转换 IC 开发工具 ADS7946 PERF DEM KIT RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| ADS7946SRTER | 功能描述:模数转换器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS7946SRTET | 功能描述:模数转换器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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