參數(shù)資料
型號： ADS7844
英文描述： 12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位，8通道串行輸出采樣模擬到數(shù)字轉換器
文件頁數(shù)： 1/14頁
文件大小： 204K
代理商： ADS7844
ADS7844
12-Bit, 8-Channel Serial Output Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
G
SINGLE SUPPLY: 2.7V to 5V
G
8-CHANNEL SINGLE-ENDED OR
4-CHANNEL DIFFERENTIAL INPUT
G
UP TO 200kHz CONVERSION RATE
G
±
1 LSB MAX INL AND DNL
G
GUARANTEED NO MISSING CODES
G
72dB SINAD
G
SERIAL INTERFACE
G
20-LEAD QSOP AND
20-LEAD SSOP PACKAGES
G
ALTERNATE SOURCE FOR MAX147
APPLICATIONS
G
DATA ACQUISITION
G
TEST AND MEASUREMENT
G
INDUSTRIAL PROCESS CONTROL
G
PERSONAL DIGITAL ASSISTANTS
G
BATTERY-POWERED SYSTEMS
DESCRIPTION
The ADS7844 is an 8-channel, 12-bit sampling ana-
log-to-digital converter (ADC) with a synchronous
serial interface. Typical power dissipation is 3mW at
a 200kHz throughput rate and a +5V supply. The
reference voltage (V
) can be varied between 100mV
and V
, providing a corresponding input voltage
range of 0V to V
. The device includes a shutdown
mode which reduces power dissipation to under 1
μ
W.
The ADS7844 is guaranteed down to 2.7V operation.
Low power, high speed, and on-board multiplexer
make the ADS7844 ideal for battery operated systems
such as personal digital assistants, portable multi-
channel data loggers, and measurement equipment.
The serial interface also provides low-cost isolation
for remote data acquisition. The ADS7844 is available
in a 20-lead QSOP package and the MAX147 equiva-
lent 20-lead SSOP package and is guaranteed over the
–40
°
C to +85
°
C temperature range.
1998 Burr-Brown Corporation
PDS-1463D
Printed in U.S.A. July, 1999
CDAC
SAR
Comparator
Eight
Channel
Multiplexer
Serial
Interface
and
Control
CH4
CH5
CH6
CH7
COM
V
REF
CH0
CH1
CH2
CH3
CS
SHDN
DIN
DOUT
BUSY
DCLK
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
ADS7844
ADS7844
相關PDF資料
PDF描述
ADS7844E CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-SO -55 to 125
ADS7844EB CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-SO -55 to 125
ADS7844N 12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7844NB CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-TSSOP -55 to 125
ADS7845 CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-TSSOP -55 to 125
相關代理商/技術參數(shù)
參數(shù)描述
ADS7844E 功能描述:模數(shù)轉換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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
ADS7844E/2K5 功能描述:模數(shù)轉換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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
ADS7844E/2K5G4 功能描述:模數(shù)轉換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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
ADS7844EB 功能描述:模數(shù)轉換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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
ADS7844EB/2K5 功能描述:模數(shù)轉換器 - ADC 12-Bit 8-Ch Serial Output Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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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