Datasheet

LT6350
4
6350fc
For more information www.linear.com/LT6350
elecTrical characTerisTics
The l denotes specifications that apply over the full specified temperature range,
otherwise specifications are at T
A
= 25°C. Unless noted otherwise, V
+
= 5V, V
–
= 0V, V
+IN1
= V2 = Mid-Supply, V
SHDN
= V
+
, R
L
= OPEN, R
F
=
SHORT, R
G
= OPEN. V
S
is defined as (V
+
– V
–
). V
OUTCM
is defined as (V
OUT1
+ V
OUT2
)/2. V
OUTDIFF
is defined as (V
OUT1
– V
OUT2
). See Figure 1.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
C
IN
Input Capacitance Single-Ended Input at +IN1 1.8 pF
CMRR1 Common Mode Rejection Ratio, Op Amp 1 V
S
= 5V, V
+IN1
= V
–IN1
= V
–
+1.5V to V
+
V
S
= 5V, V
+IN1
= V
–IN1
= V
–
+1.5V to V
+
V
S
= 5V, V
+IN1
= V
–IN1
= V
–
to V
+
V
S
= 3V, V
+IN1
= V
–IN1
= V
–
to V
+
l
l
l
82
77
72
67
94
94
88
82
dB
dB
dB
dB
CMRR2 Common Mode Rejection Ratio, Op Amp 2 V
S
= 5V, V
+IN1
= V2 = V
–
+1.5V to V
+
–0.1V
V
S
= 3V, V
+IN1
= V2 = V
–
+1.5V to V
+
–0.1V
V
S
= 10V, V
+IN1
= V2 = V
–
+1.5V to V
+
–0.1V
l
l
l
93
85
96
118
110
118
dB
dB
dB
PSRR Power Supply Rejection Ratio
(∆V
S
/∆V
OSDIFF
)
V
S
= 2.7V to 12V
l
80 108 dB
V
S
Supply Voltage (Note 7)
l
2.7 12 V
BAL Output Balance (∆V
OUTDIFF
/∆V
OUTCM
)
(Note 8)
V
OUTDIFF
= 2V
l
50 68 dB
GAIN Closed-Loop Gain
(∆V
OUTDIFF
/∆(V
+IN1
–V2))
∆(V
+IN1
–V2) = 4V
l
2 V/V
GAIN
ERR
Closed-Loop Gain Error
l
–0.6 ±0.08 0.6 %
∆GAIN
ERR
/∆T Closed-Loop Gain Error Drift
l
3 ppm/°C
INL DC Linearity (Note 9) V
+
= 5V, V
–
= 0V
V
+
= 5V, V
–
= –2V
V
+
= 5V, V– = –2V, 16-Bit, 8V
P-P
230
125
±1
µV
µV
LSB
R
INT
Internal Resistors 1000 Ω
V
OH
Output Swing to V
+
, Either Output
(Note 10)
No Load
Sourcing 12.5mA
l
l
55
360
170
750
mV
mV
V
OL
Output Swing to V
–
, Either Output
(Note 10)
No Load
Sourcing 12.5mA
l
l
55
260
170
460
mV
mV
I
SC
Output Short-Circuit Current V
+IN1
= Mid-Rail ±200mV, V
–IN1
= Mid-Rail
V
S
= 5V
V
S
= 5V
V
S
= 3V
l
l
±27
±15
±15
±45
±45
±40
mA
mA
mA
V
IL
SHDN Input Logic Low V
S
= 2.7V to 12V
l
V
–
+ 0.3 V
V
IH
SHDN Input Logic High V
S
= 2.7V to 12V
l
V
–
+ 2.0 V
I
SHDN
SHDN Pin Current SHDN = V
+
SHDN = V
–
l
l
–1
–45 –20
1 µA
µA
I
S
Supply Current V
S
= 3V
V
S
= 5V
V
S
= 5V
V
S
= 10V
l
l
l
4.5
4.8
5.4
8.1
5.8
8.3
10.4
mA
mA
mA
mA
I
S(SHDN)
Supply Current in Shutdown V
S
= 3V, V
SHDN
= V
IL
V
S
= 5V, V
SHDN
= V
IL
V
S
= 10V, V
SHDN
= V
IL
l
l
l
43
60
70
220
240
260
µA
µA
µA
GBW Gain-Bandwidth Product
Frequency = 1MHz
Op Amp 1 (Noninverting)
Op Amp 2 (Inverting)
85
115
MHz
MHz
BW Differential –3dB Small-Signal Bandwidth V
OUTDIFF
= 100mV
P-P
V
OUTDIFF
= 100mV
P-P
l
23
19 33
MHz
MHz