参数资料
型号: LTC1853IFW
厂商: Linear Technology
文件页数: 1/24页
文件大小: 0K
描述: IC A/D CONV 8CH 12BIT 48-TSSOP
标准包装: 39
位数: 12
采样率(每秒): 400k
数据接口: 并联
转换器数目: 1
功率耗散(最大): 15mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-TFSOP(0.240",6.10mm 宽)
供应商设备封装: 48-TSSOP
包装: 管件
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
LTC1852/LTC1853
1
18523fa
BLOCK DIAGRAM
FEATURES
APPLICATIONS
DESCRIPTION
8-Channel, 10-Bit/12-Bit,
400ksps, Low Power, Sampling ADCs
The 10-bit LTC1852 and 12-bit LTC1853 are complete
8-channel data acquisition systems. They include a exible
8-channel multiplexer, a 400ksps successive approxima-
tion analog-to-digital converter, an internal reference and a
parallel output interface. The multiplexer can be congured
for single-ended or differential inputs, two gain ranges and
unipolar or bipolar operation. The ADCs have a scan mode
that will repeatedly cycle through all 8 multiplexer channels
and can also be programmed to sequence through up to
16 addresses and congurations. The sequence can also
be read back from internal memory.
The reference and buffer amplier provide pin strappable
ranges of 4.096V, 2.5V and 2.048V. The parallel output
includes the 10-bit or 12-bit conversion result plus the
4-bit multiplexer address. The digital outputs are pow-
ered from a separate supply allowing for easy interface
to 3V digital logic. Typical power consumption is 10mW
at 400ksps from a single 5V supply and 3mW at 250ksps
from a single 3V supply.
n Flexible 8-Channel Multiplexer
Single-Ended or Differential Inputs
Two Gain Ranges
Unipolar or Bipolar Operation
n Scan Mode and Programmable Sequencer
Eliminate Conguration Software Overhead
n Low Power: 3mW at 250ksps
n 2.7V to 5.5V Supply Range
n Internal or External Reference Operation
n Parallel Output Includes MUX Address
n Nap and Sleep Shutdown Modes
n Pin Compatible up-grade 1.25Msps 10-Bit LTC1850
and 12-Bit LTC1851
n High Speed Data Acquisition
n Test and Measurement
n Imaging Systems
n Telecommunications
n Industrial Process Control
n Spectrum Analysis
BUSY
DIFFOUT/S6
A2OUT/S5
A1OUT/S4
A0OUT/S3
D11/S2
D10/S1
D9/S0
D8
D7
D6
D5
D4
D3
D2
D1
D0
M1
SHDN
CS
CONVST
RD
WR
DIFF
A2
A1
A0
UNI/BIP
PGA
M0
OUTPUT
DRIVERS
DATA
LATCHES
OGND
18523 BD
OVDD
REF AMP
REFCOMP
REFIN
REFOUT
COM
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
8-CHANNEL
MULTIPLEXER
2.5V
REFERENCE
INTERNAL
CLOCK
LTC1853
CONTROL LOGIC
AND
PROGRAMMABLE
SEQUENCER
12-BIT
SAMPLING
ADC
+
Integral Linearity
0
512 1024 1536 2048 2560 3072 3584 4096
CODE
1.0
0.5
0
–0.5
–1.0
INL
ERROR
(LSBs)
1852 F01
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
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