參數(shù)資料
型號(hào)： ADS7945SRTER
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC16
封裝： GREEN, PLASTIC, QFN-16
文件頁數(shù)： 48/49頁
文件大?。?/td> 1322K
代理商： ADS7945SRTER
GND
AVDD
REF
REFGND
PDEN
CHSEL
NC
1
2
3
4
12
11
10
9
DVDD
16
AIN0P
5
15
14
13
6
7
8
SDO
AIN0N
SCLK
AIN1N
C
S
AIN1P
ADS7945
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
PIN CONFIGURATION ADS7945 (DIFFERENTIAL)
RTE PACKAGE
QFN-16
(TOP VIEW)
Table 2. 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
AIN0P
Analog input
Positive analog input, channel 0
6
AIN0N
Analog input
Negative analog input, channel 0
7
AIN1N
Analog input
Negative analog input, channel 1
8
AIN1P
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
8
Copyright
2011, Texas Instruments Incorporated
Product Folder Link(s): ADS7945 ADS7946
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PDF描述
ADS7945SRTET 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7945SRTET 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14B,2MSPS,DUAL-CH, UNIPOLAR,DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7946 制造商:TI 制造商全稱: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:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS7946 PERF DEM KIT RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS7946SRTER 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7946SRTET 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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