參數(shù)資料
型號(hào)： LTC1094CN#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 31/32頁(yè)
文件大?。?/td> 0K
描述： IC DATA ACQ SYS 10BIT 8CH 20-DIP
標(biāo)準(zhǔn)包裝： 18
類(lèi)型： 數(shù)據(jù)采集系統(tǒng)（DAS），ADC
分辨率（位）： 10 b
數(shù)據(jù)接口： 串行
電壓電源： 雙 ±
電源電壓： ±5V，4.5V，10V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 通孔
封裝/外殼： 20-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 20-PDIP
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1345 (CN2011-ZH PDF)
8
LTC1091/LTC1092
LTC1093/LTC1094
LTC1092/LTC1093/LTC1094
Reference Current vs Temperature
AMBIENT TEMPERATURE (
°C)
–50
REFERENCE
CURRENT
(mA)
0.6
0.5
0.4
0.3
0.2
0.1
0
50
1091/2/3/4 G28
–25
0
25
75
125
100
VREF = 5V
AMBIENT TEMPERATURE (
°C)
–50
0
INPUT
CHANNEL
LEAKAGE
CURRENT
(nA)
100
300
400
500
1000
700
0
25
50
125
1091/2/3/4 G29
200
800
900
600
–25
75
100
ON-CHANNEL
OFF-CHANNEL
GUARANTEED
LTC1093/LTC1094 Input Channel
Leakage Current vs Temperature
PI FU CTIO S
U
UU
LTC1091/LTC1092
CS (Pin 1): Chip Select Input. A logic low on this input
enables the LTC1091/LTC1092.
CH0, CH1/+ IN, – IN (Pins 2, 3): Analog Inputs. These
inputs must be free of noise with respect to GND.
GND (Pin 4): Analog Ground. GND should be tied directly
to an analog ground plane.
DIN (Pin 5)(LTC1091): Digital Data Input. The multiplexer
address is shifted into this input.
VREF (Pin 5)(LTC1092): Reference Input. The reference
input defines the span of the A/D converter and must be
kept free of noise with respect to AGND.
DOUT (Pin 6): Digital Data Output. The A/D conversion
result is shifted out of this output.
CLK (Pin 7): Shift Clock. This clock synchronizes the serial
data transfer.
VCC(VREF)(Pin 8)(LTC1091): Positive Supply and Refer-
ence Voltage. This pin provides power and defines the
span of the A/D converter. It must be kept free of noise and
ripple by bypassing directly to the analog ground plane.
VCC (Pin 8 )(LTC1092): Positive Supply Voltage. This pin
provides power to the A/D converter. It must be kept free
of noise and ripple by bypassing directly to the analog
ground plane.
LTC1093/LTC1094
CH0 to CH5/CH0 to CH7 (Pins 1 to 6/Pins 1 to 8): Analog
Inputs. The analog inputs must be free of noise with
respect to AGND.
COM (Pin 7/Pin 9): Common. The common pin defines the
zero reference point for all single-ended inputs. It must be
free of noise and is usually tied to the analog ground plane.
DGND (Pin 8/Pin 10): Digital Ground. This is the ground
for the internal logic. Tie to the ground plane.
V – (Pin 9/Pin 11): Negative Supply. Tie V – to most
negative potential in the circuit. (Ground in single supply
applications.)
AGND (Pin 10/Pin 12): Analog Ground. AGND should be
tied directly to the analog ground plane.
CC
HARA TERISTICS
UW
A
TYPICALPERFOR
CE
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