3
LT1795
1795fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
R
IN
+
Input Resistance V
IN
= ±12V, V
S
= ±15V ● 1.5 10 MΩ
V = ±2V, V
S
= ±5V ● 0.5 5 MΩ
C
IN
+
Input Capacitance V
IN
= ±15V 2 pF
Input Voltage Range (Note 5) V
S
= ±15V ● ±12 ±13.5 V
V
S
= ±5V ● ±2 ±3.5 V
CMRR Common Mode Rejection Ratio V
S
= ±15V, V
CM
= ±12V ● 55 62 dB
V
S
= ±5V, V
CM
= ±2V ● 50 60 dB
Inverting Input Current V
S
= ±15V, V
CM
= ±12V ● 110µA/V
Common Mode Rejection V
S
= ±5V, V
CM
= ±2V ● 110µA/V
PSRR Power Supply Rejection Ratio V
S
= ±5V to ±15V ● 60 77 dB
Noninverting Input Current V
S
= ±5V to ±15V ● 30 500 nA/V
Power Supply Rejection
Inverting Input Current V
S
= ±5V to ±15V ● 15µA/V
Power Supply Rejection
A
V
Large-Signal Voltage Gain V
S
= ±15V, V
OUT
= ±10V, R
L
= 25Ω ● 55 68 dB
V
S
= ±5V, V
OUT
= ±2V, R
L
= 12Ω ● 55 68 dB
R
OL
Transresistance, ∆V
OUT
/∆I
IN
–
V
S
= ±15V, V
OUT
= ±10V, R
L
= 25Ω ● 75 200 kΩ
V
S
= ±5V, V
OUT
= ±2V, R
L
= 12Ω ● 75 200 kΩ
V
OUT
Maximum Output Voltage Swing V
S
= ±15V, R
L
= 25Ω±11.5 ±12.5 V
● ±10.0 ±11.5 V
V
S
= ±5V, R
L
= 12Ω±2.5 ±3V
●±2.0 ±3V
I
OUT
Maximum Output Current V
S
= ±15V, R
L
= 1Ω ● 0.5 1 A
I
S
Supply Current Per Amplifier V
S
= ±15V, V
SHDN
= 2.5V 29 34 mA
● 42 mA
Supply Current Per Amplifier, V
S
= ±15V 15 20 mA
R
SHDN
= 51k, (Note 6) ● 25 mA
Positive Supply Current, Shutdown V
S
= ±15V, V
SHDN
= 0.4V ● 1 200 µA
Output Leakage Current, Shutdown V
S
= ±15V, V
SHDN
= 0.4V 1 200 µA
Channel Separation V
S
= ±15V, V
OUT
= ±10V, R
L
= 25Ω 80 110 dB
HD
2
, HD
3
2nd and 3rd Harmonic Distortion f = 1MHz, V
O
= 20V
P-P
, R
L
= 50, A
V
= 2 –75 dBc
Differential Mode
SR Slew Rate (Note 7) A
V
= 4, R
L
= 400Ω 400 900 V/µs
Slew Rate A
V
= 4, R
L
= 25Ω 900 V/µs
BW Small-Signal BW A
V
= 2, V
S
= ±15V, Peaking ≤ 1.5dB 65 MHz
R
F
= R
G
= 910Ω, R
L
= 100Ω
A
V
= 2, V
S
= ±15V, Peaking ≤ 1.5dB 50 MHz
R
F
= R
G
= 820Ω, R
L
= 25Ω
The ● denotes the specifications which apply over the full specified temperature range, otherwise specifications are at T
A
= 25°C.
V
CM
= 0V, ±5V ≤ V
S
≤ ±15V, pulse tested, V
SHDN
= 2.5V, V
SHDNREF
= 0V unless otherwise noted. (Note 3)
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Applies to short-circuits to ground only. A short-circuit between
the output and either supply may permanently damage the part when
operated on supplies greater than ±10V.
Note 3: The LT1795C is guaranteed to meet specified performance from
0°C to 70°C and is designed, characterized and expected to meet these
extended temperature limits, but is not tested at –40°C and 85°C. The
LT1795I is guaranteed to meet the extended temperature limits.
Note 4: Thermal resistance varies depending upon the amount of PC board
metal attached to the device. If the maximum dissipation of the package is
exceeded, the device will go into thermal shutdown and be protected.
Note 5: Guaranteed by the CMRR tests.
Note 6: R
SHDN
is connected between the SHDN pin and V
+
.
Note 7: Slew rate is measured at ±5V on a ±10V output signal while
operating on ±15V supplies with R
F
= 1k, R
G
= 333Ω (A
V
= +4) and
R
L
= 400Ω.
