Datasheet

3
LT1794
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
C
IN
Input Capacitance 3pF
Input Voltage Range (Positive) (Note 5) ● V
+
– 2 V
+
– 1 V
Input Voltage Range (Negative) (Note 5)
● V
–
+ 1 V
–
+ 2 V
CMRR Common Mode Rejection Ratio V
CM
= (V
+
– 2V) to (V
–
+ 2V) 74 83 dB
● 66 dB
PSRR Power Supply Rejection Ratio V
S
= ±4V to ±15V 74 88 dB
● 66 dB
A
VOL
Large-Signal Voltage Gain V
S
= ±15V, V
OUT
= ±13V, R
L
= 100Ω 70 82 dB
● 64 dB
V
S
= ±12V, V
OUT
= ±10V, R
L
= 40Ω 63 76 dB
● 57 dB
V
S
= ±5V, V
OUT
= ±3V, R
L
= 25Ω 60 70 dB
● 54 dB
V
OUT
Output Swing V
S
= ±15V, R
L
= 100Ω 13.8 14.0 ±V
● 13.6 ±V
V
S
= ±15V, I
L
= 250mA 13.6 13.9 ±V
● 13.4 ±V
V
S
= ±12V, R
L
= 100Ω 10.9 11.1 ±V
● 10.7 ±V
V
S
= ±12V, I
L
= 250mA 10.6 10.9 ±V
● 10.4 ±V
V
S
= ±5V, R
L
= 25Ω 3.7 4.0 ±V
● 3.5 ±V
V
S
= ±5V, I
L
= 250mA 3.6 3.9 ±V
● 3.4 ±V
I
OUT
Maximum Output Current V
S
= ±15V, R
L
= 1Ω 500 720 mA
I
S
Supply Current per Amplifier V
S
= ±15V, R
BIAS
= 24.9k (Note 6) 10 13 18 mA
● 820mA
V
S
= ±12V, R
BIAS
= 24.9k (Note 6) 8.0 10 13.5 mA
● 6.7 15.0 mA
V
S
= ±12V, R
BIAS
= 32.4k (Note 6) 8 mA
V
S
= ±12V, R
BIAS
= 43.2k (Note 6) 6 mA
V
S
= ±12V, R
BIAS
= 66.5k (Note 6) 4 mA
V
S
= ±5V, R
BIAS
= 24.9k (Note 6) 2.2 3.4 5.0 mA
● 1.8 5.8 mA
Supply Current in Shutdown V
SHDN
= 0.4V 0.1 1 mA
Output Leakage in Shutdown V
SHDN
= 0.4V 0.3 1 mA
Channel Separation V
S
= ±12V, V
OUT
= ±10V, R
L
= 40Ω 80 110 dB
● 77 dB
SR Slew Rate V
S
= ±15V, A
V
= –10, (Note 7) 300 600 V/µs
V
S
= ±5V, A
V
= –10, (Note 7) 100 200 V/µs
HD2 Differential 2nd Harmonic Distortion V
S
= ±12V, A
V
= 10, 2V
P-P
, R
L
= 50Ω, 1MHz –85 dBc
HD3 Differential 3rd Harmonic Distortion V
S
= ±12V, A
V
= 10, 2V
P-P
, R
L
= 50Ω, 1MHz –82 dBc
GBW Gain Bandwidth f = 1MHz 200 MHz
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full specified temperature range, otherwise specifications are at T
A
= 25°C.
V
CM
= 0V, pulse tested, ±5V ≤ V
S
≤ ±15V, V
SHDNREF
= 0V, R
BIAS
= 24.9k between V
+
and SHDN unless otherwise noted. (Note 3)