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參數(shù)資料
| 型號： | LTC1297 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Single Chip 12-Bit Data Acquisition Systems(5V，單片，12位數(shù)據(jù)采集系統(tǒng)(內(nèi)置采樣和保持)) |
| 中文描述： | 單芯片12位數(shù)據(jù)采集系統(tǒng)（5V的，單片，12位數(shù)據(jù)采集系統(tǒng)（內(nèi)置采樣和保持）） |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 398K |
| 代理商： | LTC1297 |
1
LTC1292/LTC1297
Single Chip 12-Bit
Data Acquisition Systems
S
FEATURE
D
U
ESCRIPTIO
KEY SPECIFICATIOU
U
A
O
PPLICATI
TYPICAL
I
Resolution: 12 Bits
I
Fast Conversion Time: 12
μ
s Max Over Temp
I
Low Supply Current: 6.0mA
I
Shutdown Supply Current: 5
μ
A (LTC1297)
I
Built-In Sample-and-Hold
I
Single Supply 5V Operation
I
60kHz Maximum Throughput Rate (LTC1292)
I
Power Shutdown After Each Conversion (LTC1297)
I
Direct 3-Wire Interface to Most MPU Serial Ports and
All MPU Parallel Ports
I
Analog Inputs Common Mode to Supply Rails
The LTC1292/LTC1297 are data acquisition systems that
contain a 12-bit, switched-capacitor successive approxi-
mation A/D, a differential input, sample-and-hold on the
(+) input, and serial I/O. When the LTC1297 is idle between
conversions it automatically powers down reducing the
supply current to 5
μ
A, typically. The LTC1292 is capable
of digitizing signals at a 60kHz rate and with the device’s
excellent AC characteristics, it can be used for DSP appli-
cations. All these features are packaged in an 8-pin DIP
and are made possible using LTCMOS
TM
switched-capaci-
tor technology.
The serial I/O is designed to communicate without external
hardware to most MPU serial ports and all MPU parallel
I/O ports allowing data to be transmitted over three wires.
Because of their accuracy, ease of use and small package
size these devices are well suited for digitizing analog
signals in remote applications where minimum number of
interconnects and power consumption are important.
LTCMOS is trademark of Linear Technology Corporation
12-Bit Differential Input Data Acquisition System
+
–
DIFFERENTIAL
INPUTS
COMMON MODE
RANGE
0V TO 5V
*
1N4148
V
REF
D
OUT
CLK
V
CC
LTC1297
+IN
GND
CS
–IN
LT1027
4.7μF
TANTALUM
+
8V TO 40V
1μF
22μF
TANTALUM
DO
MC68HC11
SCK
MISO
*FOR OVERVOLTAGE PROTECTION LIMIT THE INPUT CURRENT TO 15mA
PER PIN OR CLAMP THE INPUTS TO V
CC
AND GND WITH 1N4148 DIODES.
CONVERSION RESULTS ARE NOT VALID WHEN ANY INPUT IS OVERVOLTAGED
(V
IN
< GND OR V
IN
> V
CC
). SEE SECTION ON OVERVOLTAGE PROTECTION IN
THE APPLICATIONS INFORMATION.
LTC1292/7 TA01
+
5V
f
SAMPLE
(Hz)
10
A
C
μ
A
100
1000
10000
1
100
10k
LTC1297 TA02
1
10
1k
100k
Power Supply Current
vs Sampling Frequency
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| LTC1297CCJ8 | 制造商:Linear Technology 功能描述:ADC Single SAR 50ksps 12-bit Serial 8-Pin CDIP |
| LTC1297CCN8 | 功能描述:IC DATA ACQ SYSTEM 12BIT 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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