參數(shù)資料
型號(hào)： ADS7842E
英文描述： 12-Bit, 4-Channel Parallel Output Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位，4通道并行輸出采樣模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 11/13頁(yè)
文件大?。?/td> 139K
代理商： ADS7842E
11
ADS7842
FIGURE 2. Normal Operation, 16 Clocks per Conversion.
CS
RD
WR
BUSY
A0
A1
COMMENTS
0
X
1
1
X
Power Down Mode
0
X
1
0
X
Wake Up Mode
means rising edge triggered. X = Don't care.
TABLE III. Truth Table for Power Down and Wake Up
Modes.
FIGURE 3. Initiating a Conversion.
1
2
3
CS
WR
BUSY
RD
A0
A1
CLK
Latching in Address for Next Channel
Conversion
4
5
6
7
8
9
10
11
12
13
14
15
16
Sample
DATA VALID
DB0-DB11
DIGITAL OUTPUT
STRAIGHT BINARY
DESCRIPTION
ANALOG INPUT
BINARY CODE
HEX CODE
Least Significant Bit (LSB)
Full Scale
Midscale
Midscale –1LSB
Zero Full Scale
1.2207mV
4.99878V
2.5V
2.49878V
0V
1111 1111 1111
1000 0000 0000
0111 1111 1111
0000 0000 0000
FFF
800
7FF
000
Table IV. Ideal Input Voltages and Output Codes (V
REF
= 5V).
CS
WR
CLK
BUSY
A0, A1
t
1
t
5
t
2
t
10
t
9
t
3
t
4
t
6
t
8
t
7
N + 1
(1)
NOTE: (1) Addresses for next conversion (N + 1) latched in with rising edge of current WR (N).
t
CKL
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7842E/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel Output Sampling 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
ADS7842E/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel Output Sampling 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
ADS7842EB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4-Ch Parallel Output Sampling 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
ADS7842EB 制造商:Texas Instruments 功能描述:IC 12BIT ADC 200KHZ SSOP28 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 200KHZ, SSOP28 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 200KHZ, SSOP28; Resolution (Bits):12bit; Sampling Rate:200kSPS; Supply Voltage Type:Single; Supply Voltage Min:2.7V; Supply Voltage Max:5.25V; Supply Current:550A; Digital IC Case Style:SSOP; No. of Pins:28; Input ;RoHS Compliant: Yes
ADS7842EB 制造商:Texas Instruments 功能描述:IC's
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