参数资料
型号: LTC1283CN#PBF
厂商: Linear Technology
文件页数: 1/24页
文件大小: 0K
描述: IC DATA ACQ SYS 10BIT 3V 20-DIP
标准包装: 18
类型: 数据采集系统(DAS)
分辨率(位): 10 b
采样率(每秒): 15k
数据接口: 串行,并联
电压电源: 双 ±
电源电压: ±3.3V,3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 20-DIP(0.300",7.62mm)
供应商设备封装: 20-PDIP
包装: 管件
1
LTC1283
1283fb
3V Single Chip 10-Bit Data
Acquisition System
D
U
ESCRIPTIO
S
FEATURE
Single Supply 3.3V or
±3.3V Operation
Software Programmable Features:
Unipolar/Bipolar Conversions
4 Differential/8 Single-Ended Inputs
MSB- or LSB-First Data Sequence
Variable Data Word Length
Built-In Sample-and-Hold
Direct 4-Wire Interface to Most MPU Serial Ports
and all MPU Parallel Ports
15kHz Maximum Throughput Rate
U
A
O
PPLICATI
TYPICAL
Linearity Plot
KEY SPECIFICATIO S
U
Minimum Guaranteed Supply Voltage: 3V
Resolution: 10 Bits
Offset Error:
±0.5LSB Max
Linearity Error:
±0.5LSB Max
Gain Error (LTC1283A):
±1LSB Max
Conversion Time: 44
μs
Supply Current: 350
μA Max, 150μA Typ
OUTPUT CODE
0
ERROR
(LSBs)
0
0.5
1024
LTC1283 TA02
–0.5
– 1.0
512
1.0
The LTC1283 is a 3V 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 10-bit unipolar, or 9-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.
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-, 10-, 12-, or
16-bit. This allows easy interface to shift registers and a
variety of processors.
Both the LTC1283A and LTC1283 are specified with offset
and linearity errors less than
±0.5LSB. The LTC1283A has
a gain error limit of
±1LSB. The 1283 is specified with a
gain error limit of
±2LSB for applications where gain is
adjustable or less critcial.
DIFFERENTIAL
INPUT
LTC1283
3V
BIPOLAR
INPUT
–3V
3V
T
–3V
UNIPOLAR
INPUTS
(+)
(–)
–UNIPOLAR
INPUT
MPU
(e.g., 83CL410)
P1.1
P1.2
P1.3
P1.4
SERIAL DATA LINK
FOR 83CL410 CODE SEE
APPLICATIONS INFORMATION SECTION
LTC1283 TA01
DOUT
DIN
SCLK
CS
4.7
μF
3V
, LT, LTC and LTM 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.
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