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ADS7807U/1KG4 参数 Datasheet PDF下载

ADS7807U/1KG4图片预览
型号: ADS7807U/1KG4
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗, 16位采样CMOS模拟数字转换器 [Low-Power, 16-Bit, Sampling CMOS ANALOG-to-DIGITAL CONVERTER]
分类和应用: 转换器光电二极管
文件页数/大小: 25 页 / 672 K
品牌: BURR-BROWN [ BURR-BROWN CORPORATION ]
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ADS7807
AD S
780
7
ADS
780
7
SBAS022C – NOVEMBER 1992 – REVISED FEBRUARY 2006
Low-Power, 16-Bit, Sampling CMOS
ANALOG-to-DIGITAL CONVERTER
FEATURES
q
35mW max POWER DISSIPATION
q
50
µ
W POWER-DOWN MODE
q
25
µ
s max ACQUISITION AND CONVERSION
q
±
1.5LSB max INL
q
DNL: 16 bits “No Missing Codes”
q
86dB min SINAD WITH 1kHz INPUT
q
±
10V, 0V TO +5V, AND 0V TO +4V INPUT RANGES
q
q
q
q
q
SINGLE +5V SUPPLY OPERATION
PARALLEL AND SERIAL DATA OUTPUT
PIN-COMPATIBLE WITH THE 12-BIT ADS7806
USES INTERNAL OR EXTERNAL REFERENCE
0.3" DIP-28 AND SO-28
DESCRIPTION
The ADS7807 is a low-power, 16-bit, sampling Analog-to-
Digital (A/D) converter using state-of-the-art CMOS struc-
tures. It contains a complete 16-bit, capacitor-based, Suc-
cessive Approximation Register (SAR) A/D converter with
sample-and-hold, clock, reference, and microprocessor inter-
face with parallel and serial output drivers.
The ADS7807 can acquire and convert 16 bits to within
±1.5LSB
in 25µs max while consuming only 35mW max.
Laser trimmed scaling resistors provide standard industrial
input ranges of
±10V
and 0V to +5V. In addition, a 0V to +4V
range allows development of complete single-supply sys-
tems.
The ADS7807 is available in a 0.3" DIP-28 and SO-28, both
fully specified for operation over the industrial –40°C to
+85°C temperature range.
Clock
Successive Approximation Register and Control Logic
R/C
CS
BYTE
Power
Down
40kΩ
R1
IN
CDAC
BUSY
Parallel
20kΩ
40kΩ
Comparator
and
Serial
Data
Serial Data
Serial Data
Clock
10kΩ
R2
IN
CAP
Buffer
6kΩ
REF
Internal
+2.5V Ref
Reference
Power-Down
Out
Parallel Data
8
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1992-2006, Texas Instruments Incorporated
www.ti.com