Datasheet

LTC6400-20
3
640020f
DC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input/Output Characteristic
G
DIFF
Gain V
IN
= ±100mV Differential
19.4 20 20.6 dB
TC
GAIN
Gain Temperature Drift V
IN
= ±100mV Differential
–1.5 mdB/°C
V
SWINGMIN
Output Swing Low Each Output, V
IN
= ±600mV Differential
80 150 mV
V
SWINGMAX
Output Swing High Each Output, V
IN
= ±600mV Differential
2.35 2.46 V
V
OUTDIFFMAX
Maximum Differential Output Swing 1dB Compressed
4.4 V
P-P
I
OUT
Output Current Drive Each Output
20 mA
V
OSDIFF
Input Differential Offset Voltage
–2 2 mV
TCV
OSDIFF
Input Differential Offset Voltage Drift T
MIN
to T
MAX
1.2 μV/°C
I
VRMIN
Input Common Mode Voltage Range, MIN 1 V
I
VRMAX
Input Common Mode Voltage Range, MAX 1.6 V
R
INDIFF
Input Resistance (+IN, –IN) Differential
170 200 230
Ω
C
INDIFF
Input Capacitance (+IN, –IN) Differential, Includes Parasitic 1 pF
R
OUTDIFF
Output Resistance (+OUT, –OUT) Differential
18 25 32
Ω
R
OUTFDIFF
Filtered Output Resistance (+OUTF, –OUTF) Differential
85 100 115
Ω
C
OUTFDIFF
Filtered Output Capacitance (+OUTF, –OUTF) Differential, Includes Parasitic 2.7 pF
CMRR Common Mode Rejection Ratio Input Common Mode Voltage 1.1V~1.4V
45 65 dB
Output Common Mode Voltage Control
G
CM
Common Mode Gain V
OCM
= 1V to 1.6V 1 V/V
V
OCMMIN
Output Common Mode Range, MIN
1
1.1
V
V
V
OCMMAX
Output Common Mode Range, MAX
1.6
1.5
V
V
V
OSCM
Common Mode Offset Voltage V
OCM
= 1.1V to 1.5V
–15 15 mV
TCV
OSCM
Common Mode Offset Voltage Drift T
MIN
to T
MAX
16 μV/°C
IV
OCM
V
OCM
Input Current
515 μA
E
N
A
B
L
E Pin
V
IL
E
N
A
B
L
E Input Low Voltage
0.8 V
V
IH
E
N
A
B
L
E Input High Voltage
2.4 V
I
IL
E
N
A
B
L
E Input Low Current
E
N
A
B
L
E = 0.8V
0.5 μA
I
IH
E
N
A
B
L
E Input High Current
E
N
A
B
L
E = 2.4V
1.2 3 μA
Power Supply
V
S
Operating Supply Range
2.85 3 3.5 V
I
S
Supply Current
E
N
A
B
L
E = 0.8V
75 90 105 mA
I
SHDN
Shutdown Supply Current
E
N
A
B
L
E = 2.4V
13 mA
PSRR Power Supply Rejection Ratio (Differential
Outputs)
V
+
= 2.85V to 3.5V
55 86 dB
The denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
+
= 3V, V
= 0V, +IN = –IN = V
OCM
= 1.25V,
E
N
A
B
L
E = 0V, No R
L
unless
otherwise noted.