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LTC6409 Datasheet(PDF) 3 Page - Analog Devices

Part # LTC6409
Description  Differential Amplifier/ADC Driver
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC6409 Datasheet(HTML) 3 Page - Analog Devices

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LTC6409
3
6409fb
For more information www.linear.com/LTC6409
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
enVOCM
Common Mode Noise Voltage Density
f = 10MHz
12
nV/√Hz
VICMR
(Note 7)
Input Signal Common Mode Range
VS = 3V
VS = 5V
l
l
0
0
1.5
3.5
V
V
CMRRI
(Note 8)
Input Common Mode Rejection Ratio
(Input Referred) ΔVICM/ΔVOSDIFF
VS = 3V, VICM from 0V to 1.5V
VS = 5V, VICM from 0V to 3.5V
l
l
75
75
90
90
dB
dB
CMRRIO
(Note 8)
Output Common Mode Rejection Ratio (Input
Referred) ΔVOCM/ΔVOSDIFF
VS = 3V, VOCM from 0.5V to 1.5V
VS = 5V, VOCM from 0.5V to 3.5V
l
l
55
60
80
85
dB
dB
PSRR
(Note 9)
Differential Power Supply Rejection (ΔVS/ΔVOSDIFF) VS = 2.7V to 5.25V
l
60
85
dB
PSRRCM
(Note 9)
Output Common Mode Power Supply Rejection
(ΔVS/ΔVOSCM)
VS = 2.7V to 5.25V
l
55
70
dB
VS
Supply Voltage Range (Note 10)
l
2.7
5.25
V
GCM
Common Mode Gain (ΔVOUTCM/ΔVOCM)
VS = 3V, VOCM from 0.5V to 1.5V
VS = 5V, VOCM from 0.5V to 3.5V
l
l
1
1
V/V
V/V
ΔGCM
Common Mode Gain Error, 100 × (GCM – 1)
VS = 3V, VOCM from 0.5V to 1.5V
VS = 5V, VOCM from 0.5V to 3.5V
l
l
±0.1
±0.1
±0.3
±0.3
%
%
BAL
Output Balance
(ΔVOUTCM/ ΔVOUTDIFF)
ΔVOUTDIFF = 2V
Single-Ended Input
Differential Input
l
l
–65
–70
–50
–50
dB
dB
VOSCM
Common Mode Offset Voltage (VOUTCM – VOCM)
VS = 3V
VS = 5V
l
l
±1
±1
±5
±6
mV
mV
ΔVOSCM
ΔT
Common Mode Offset Voltage Drift
l
4
µV/°C
VOUTCMR
(Note 7)
Output Signal Common Mode Range
(Voltage Range for the VOCM Pin)
VS = 3V
VS = 5V
l
l
0.5
0.5
1.5
3.5
V
V
RINVOCM Input Resistance, VOCM Pin
l
30
40
50
kΩ
VOCM
Self-Biased Voltage at the VOCM Pin
VS = 3V, VOCM = Open
VS = 5V, VOCM = Open
l
0.9
0.85
1.25
1.6
V
V
VOUT
Output Voltage, High, Either Output Pin
VS = 3V, IL = 0
VS = 3V, IL = –20mA
VS = 5V, IL = 0
VS = 5V, IL = –20mA
l
l
l
l
1.85
1.8
3.85
3.8
2
1.95
4
3.95
V
V
V
V
Output Voltage, Low, Either Output Pin
VS = 3V, 5V; IL = 0
VS = 3V, 5V; IL = 20mA
l
l
0.06
0.2
0.15
0.4
V
V
ISC
Output Short-Circuit Current, Either Output Pin
(Note 11)
VS = 3V
VS = 5V
l
l
±50
±70
±70
±95
mA
mA
AVOL
Large-Signal Open Loop Voltage Gain
65
dB
IS
Supply Current
l
52
56
58
mA
mA
ISHDN
Supply Current in Shutdown
VSHDN ≤ 0.6V
l
100
500
µA
RSHDN
SHDN Pull-Up Resistor
VSHDN = 0V to 0.5V
l
115
150
185
kΩ
VIL
SHDN Input Logic Low
l
0.6
V
VIH
SHDN Input Logic High
l
1.4
V
tON
Turn-On Time
160
ns
tOFF
Turn-Off Time
80
ns
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V+ = 5V, V– = 0V, VCM = VOCM = VICM = 1.25V, VSHDN = open. VS is
defined as (V+ – V–). VOUTCM is defined as (V+OUT + V–OUT)/2. VICM is defined as (V+IN + V–IN)/2. VOUTDIFF is defined as (V+OUT – V–OUT).



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