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参数资料
| 型号： | LTC1290CISW#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC DATA ACQ SYS 12BIT 20-SOIC |
| 标准包装： | 1,000 |
| 类型： | 数据采集系统（DAS），ADC |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 50k |
| 数据接口： | 串行，并联 |
| 电压电源： | 双 ± |
| 电源电压： | ±5 V，5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 带卷 (TR) |
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1
LTC1290
1290fe
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corporation. All other trademarks
are the property of their respective owners. Protected by U.S. Patents, including 5287525.
DESCRIPTIO
U
KEY SPECIFICATIO S
U
FEATURES
Single Chip 12-Bit Data
Acquisition System
12-Bit 8-Channel Sampling Data Acquisition System
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
DGND
VCC
ACLK
SCLK
DIN
DOUT
CS
REF +
REF –
V –
AGND
LTC1290
DIFFERENTIAL INPUT (+)
±5V COMMON MODE RANGE (–)
1k
SINGLE-ENDED INPUT
0V TO 5V OR
±5V
±15V OVERVOLTAGE RANGE*
TO AND FROM
MICROPROCESSOR
0.1
F
1N5817
–5V
22
F
TANTALUM
1N5817
1N4148
4.7
F
TANTALUM
1
F
LT
1027
5V
8V TO 40V
* FOR OVERVOLTAGE PROTECTION ON ONLY ONE CHANNEL LIMIT THE INPUT CURRENT TO 15mA. FOR OVERVOLTAGE PROTECTION
ON MORE THAN ONE CHANNEL LIMIT THE INPUT CURRENT TO 7mA PER CHANNEL AND 28mA FOR ALL CHANNELS. (SEE SECTION ON
OVERVOLTAGE PROTECTION IN THE APPLICATIONS INFORMATION SECTION.) CONVERSION RESULTS ARE NOT VALID WHEN THE SELECTED
OR ANY OTHER CHANNEL IS OVERVOLTAGED (VIN < V
– OR V
IN > VCC).
1290 TA01
+
The LTC
1290 is a data acquisition component which
contains a serial I/O successive approximation A/D con-
verter. It uses LTCMOS
TM switched capacitor technology
to perform either 12-bit unipolar or 11-bit plus sign bipolar
A/D conversions. The 8-channel input multiplexer can be
configured for either single-ended or differential inputs (or
combinations thereof). An on-chip sample-and-hold is
included for all single-ended input channels. When the
LTC1290 is idle it can be powered down with a serial word
in applications where low power consumption is desired.
The serial I/O is designed to be compatible with industry
standard full duplex serial interfaces. It allows either MSB-
or LSB-first data and automatically provides 2's comple-
ment output coding in the bipolar mode. The output data
word can be programmed for a length of 8, 12 or 16 bits.
This allows easy interface to shift registers and a variety of
processors.
■ Software Programmable Features
– Unipolar/Bipolar Conversion
– Four Differential/Eight Single-Ended Inputs
– MSB- or LSB-First Data Sequence
– Variable Data Word Length
– Power Shutdown
■ Built-In Sample-and-Hold
■
Single Supply 5V or
±5V Operation
■ Direct Four-Wire Interface to Most MPU Serial Ports
and All MPU Parallel Ports
■
50kHz Maximum Throughput Rate
■ Available in 20-Lead PDIP and SO Wide Packages
■ Resolution: 12 Bits
■ Fast Conversion Time: 13
s Max Over Temp
■ Low Supply Current: 6.0mA
TYPICAL APPLICATIO
U
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| LTC1290DCN | 功能描述:IC DATA ACQ SYS 12BIT 20-DIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| LTC1290DCN#PBF | 功能描述:IC DATA ACQ SYS 12BIT 20-DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Data Converter Basics 标准包装:1 系列:- 类型:电机控制 分辨率（位）:12 b 采样率（每秒）:1M 数据接口:串行，并联 电压电源:单电源 电源电压:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:100-TQFP 供应商设备封装:100-TQFP（14x14） 包装:剪切带 (CT) 其它名称:296-18373-1 |
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