3
LT1115
1115fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CMRR Common Mode Rejection V
CM
= ±13.5V 104 123 dB
Ratio
PSRR Power Supply Rejection V
S
= ±4V to ±19V 104 126 dB
Ratio
A
VOL
Large-Signal Voltage Gain R
L
≥ 2kΩ, V
o
= ±14.5V 2.0 20 V/µV
R
L
≥ 1kΩ, V
o
= ±13V 1.5 15 V/µV
R
L
≥ 600Ω, V
o
= ±10V 1.0 10 V/µV
V
OUT
Maximum Output Voltage No Load ±15.5 ±16.5 V
Swing R
L
≥ 2kΩ ±14.5 ±15.5 V
R
L
≥ 600Ω ±11.0 ±14.5 V
SR Slew Rate A
VCL
= –1 10 15 V/µs
GBW Gain-Bandwidth Product f
o
= 20kHz (Note 4) 40 70 MHz
Z
o
Open Loop 0utput Impedance V
o
= 0, I
o
= 0 70 Ω
I
S
Supply Current 8.5 11.5 mA
V
S
= ±18V, T
A
= 25°C, unless otherwise noted.
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
S
= ±18V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (Note 2) ● 75 280 µV
∆V
OS
/∆TAverage Input Offset Drift 0.5 µV/°C
I
OS
Input Offset Current V
CM
= 0V ● 40 300 nA
I
B
Input Bias Current V
CM
= 0V ● ±70 ±550 nA
Input Voltage Range ● ±13 ±14.8 V
CMRR Common Mode Rejection V
CM
= ±13V ● 100 120 dB
Ratio
PSRR Power Supply Rejection V
S
= ±4.5V to ±18V ● 100 123 dB
Ratio
A
VOL
Large-Signal Voltage Gain R
L
≥ 2kΩ, V
o
= ±13V ● 1.5 15 V/µV
R
L
≥ 1kΩ, V
o
= ±11V 1.0 10 V/µV
V
OUT
Maximum Output Voltage No Load ±15 ±16.3 V
Swing R
L
≥ 2kΩ ● ±13.8 ±15.3 V
R
L
≥ 600Ω ±10 ±14.3 V
I
S
Supply Current ● 9.3 13 mA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Input Offset Voltage measurements are performed by automatic
test equipment approximately 0.5 sec after application of power.
Note 3: Current noise is defined and measured with balanced source
resistors. The resultant voltage noise (after subtracting the resistor noise
on an RMS basis) is divided by the sum of the two source resistors to
obtain current noise.
Note 4: Gain-bandwidth product is not tested. It is guaranteed by design
and by inference from the slew rate measurement.
Note 5: The inputs are protected by back-to-back diodes. Current limiting
resistors are not used in order to achieve low noise. If differential input
voltage exceeds ±1.8V, the input current should be limited to 25mA.
ELECTRICAL CHARACTERISTICS
