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參數資料
| 型號： | ADS7812 |
| 英文描述： | Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 低功耗，串行12位采樣模擬到數字轉換器 |
| 文件頁數： | 1/17頁 |
| 文件大?。?/td> | 381K |
| 代理商： | ADS7812 |
ADS7812
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/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
ADS7812
1997 Burr-Brown Corporation
PDS-1301A
Low-Power, Serial 12-Bit Sampling
ANALOG-TO-DIGITAL CONVERTER
DESCRIPTION
The ADS7812 is a low-power, single +5V supply, 12-
bit sampling analog-to-digital converter. It contains a
complete 12-bit capacitor-based SAR A/D with a
sample/hold, clock, reference, and serial data inter-
face.
The converter can be configured for a variety of input
ranges including
±
10V,
±
5V, 0V to 10V, and 0.5V to
4.5V. A high impedance 0.3V to 2.8V input range is
also available (input impedance > 10M
). For most
input ranges, the input voltage can swing to +16.5V or
–16.5V without damage to the converter.
A flexible SPI compatible serial interface allows data
to be synchronized to an internal or external clock.
The ADS7812 is specified at a 40kHz sampling rate
over the –40
°
C to +85
°
C temperature range. It is
available in a 16-pin 0.3" plastic DIP or a 16-lead
SOIC package.
FEATURES
G
20
μ
s max CONVERSION TIME
G
SINGLE +5V SUPPLY OPERATION
G
PIN-COMPATIBLE WITH 16-BIT ADS7813
G
EASY-TO-USE SERIAL INTERFACE
G
16-PIN 0.3" PLASTIC DIP AND SOIC
G
±
0.5LSB max INL AND DNL
G
72dB min SINAD
G
USES INTERNAL OR EXTERNAL
REFERENCE
G
MULTIPLE INPUT RANGES
G
35mW max POWER DISSIPATION
G
NO MISSING CODES
G
50
μ
W POWER DOWN MODE
ADS7812
ADS7812
8k
(1)
CDAC
4k
(1)
40k
(1)
20k
(1)
Internal
+2.5V Ref
Clock
EXT/INT
DATACLK
DATA
Successive Approximation Register and Control Logic
Serial
Data
Out
Comparator
Buffer
BUSY
PWRD
CONV
R1
IN
R3
IN
REF
BUF
CAP
CS
R2
IN
NOTE: (1) Actual value may vary ±30%.
APPLICATIONS
G
DATA ACQUISITION SYSTEMS
G
INDUSTRIAL CONTROL
G
TEST EQUIPMENT
G
DIGITAL SIGNAL PROCESSING
相關PDF資料 |
PDF描述 |
|---|---|
| ADS7812P | Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7812PB | Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7812U | Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7812UB | Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7813 | Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADS7812B/1K | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADS7812P | 功能描述:模數轉換器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道數量: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 |
| ADS7812P | 制造商:Texas Instruments 功能描述:IC 12BIT ADC SERIAL PDIP16 7812 |
| ADS7812PB | 功能描述:模數轉換器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道數量: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 |
| ADS7812PBG4 | 功能描述:模數轉換器 - ADC Low-Power Serial 12-Bit Sampling RoHS:否 制造商:Texas Instruments 通道數量: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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