參數(shù)資料
型號： ADS7870
英文描述： 12-Bit ADC, MUX, PGA and Internal Reference DATA ACQUISITION SYSTEM
中文描述： 12位ADC，復用器，PGA和內(nèi)部基準數(shù)據(jù)采集系統(tǒng)
文件頁數(shù)： 5/27頁
文件大?。?/td> 262K
代理商： ADS7870
5
ADS7870
PIN #
NAME
I/O
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
LN 0
LN 1
LN 2
LN 3
LN 4
LN 5
LN 6
LN 7
RESET
RISE/FALL
I/O 0
I/O 1
I/O 2
I/O 3
NC
CONVERT
BUSY
OSC ENABLE
CCLK
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Digital Input
Digital Input
Digital Input/Output
Digital Input/Output
Digital Input/Output
Digital Input/Output
No Connection
Digital Input
Digital Output
Digital Input
Digital Input/Output
MUX Input Line 0
MUX Input Line 1
MUX Input Line 2
MUX Input Line 3
MUX Input Line 4
MUX Input Line 5
MUX Input Line 6
MUX Input Line 7
Master Reset zero’s all registers.
Sets the active edge for SCLK. “0” sets SCLK active on falling edge. “1” sets SCLK active on rising edge.
Digital Input or Output signal
Digital Input or Output signal
Digital Input or Output signal
Digital Input or Output signal
Do not connect to this pin.
“0” to “1” transition starts a conversion cycle.
“1” indicates converter is busy
“0” sets CCLK as input, “1” sets CCLK as output and turns oscillator on.
If OSC ENABLE = “1” then Internal Oscillator is output to this pin. If OSC ENABLE = “0” then this is
the input pin for an external conversion clock.
Serial Data Input/Output Transfer Clock. Active edge set by the RISE/FALL pin. If RISE/FALL is low,
SCLK is active on the falling edge.
Serial Data Input. In the 3-wire mode, this pin is used for serial data input. In the 2-wire mode serial
data, output appears on this pin as well as the DOUT pin.
Serial Data Output. This pin is driven when CS is low and is high impedance when CS is high. This
pin behaves the same in both 3-wire and 2-wire modes.
Chip Select. When CS is low the serial interface is enabled. When CS is high the serial interface is
disabled, the DOUT pin is high impedance, and the DIN pin is an input. The CS pin only effects the
operation of the serial interface. It does not directly enable/disable the operation of the signal
conversion process.
Power Supply Voltage, +2.7V to +5.5V.
Power Supply Ground.
2.048V/2.5V On-Chip Voltage Reference
Input to Reference Buffer Amplifier
Output from Reference Buffer Amplifier and Reference Input to ADC.
20
SCLK
Digital Input
21
DIN
Digital Input
22
DOUT
Digital Output
23
CS
Digital Input
24
25
26
27
28
V
DD
GND
V
REF
BUF
IN
Power
Power
Analog Output
Analog Input
Analog Output/Input
BUF
OUT
/REF
IN
PIN ASSIGNMENTS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7870EA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7870EA/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7870EA/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7870EA/250 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 12-Bit
ADS7870EAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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