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参数资料
| 型号： | ADS7945SRTET |
| 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： | 49/49页 |
| 文件大小： | 1322K |
| 代理商： | ADS7945SRTET |
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GND
AVDD
REF
REFGND
PDEN
CHSEL
NC
1
2
3
4
12
11
10
9
DVDD
16
AIN0
5
15
14
13
6
7
8
SDO
AIN0GND
SCLK
AIN1GND
C
S
AIN1
ADS7946
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
PIN CONFIGURATION ADS7946 (SINGLE-ENDED)
RTE PACKAGE
QFN-16
(TOP VIEW)
Table 3. PIN FUNCTIONS
PIN
NO.
PIN NAME
FUNCTION
DESCRIPTION
1
GND
Analog/digital
Power supply ground; all analog and digital signals are referred with respect to this pin
2
AVDD
Analog
ADC power supply
3
REF
Analog
ADC positive reference input; decouple this pin with REFGND
4
REFGND
Analog
Reference return; short to analog ground plane
5
AIN0
Analog input
Positive analog input, channel 0
6
AIN0GND
Analog input
Ground sense analog input, channel 0
7
AIN1GND
Analog input
Ground sense analog input, channel 1
8
AIN1
Analog input
Positive analog input, channel 1
9
NC
—
Not connected internally, it is recommended to externally short this pin to GND
10
NC
—
Not connected internally, it is recommended to externally short this pin to GND
This pin selects the analog input channel.
Low = Channel 0
11
CH SEL
Digital input
High = Channel 1
It is recommended to change the channel within a window of one clock; from half a clock after the CS
falling edge. This change ensures the settling on the multiplexer output before the sample start.
12
PDEN
Digital input
This pin enables a power-down feature if it is high at the CS rising edge
13
CS
Digital input
Chip select signal; active low
14
SCLK
Digital input
Serial SPI clock
15
SDO
Digital output
Serial data out
16
DVDD
Digital
Digital I/O supply
Copyright
2011, Texas Instruments Incorporated
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| ADS7947 | 制造商:TI 制造商全称:Texas Instruments 功能描述:12/10/8-Bit 2MSPS, Dual-Channel Unipolar Pseudo-Differential Ultralow-Power SAR Analog-to-Digital Converters |
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