3
LT1795
1795fa
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RIN+
Input Resistance
VIN = ±12V, VS = ±15V
q
1.5
10
M
V =
±2V, VS = ±5V
q
0.5
5
M
CIN+
Input Capacitance
VIN = ±15V
2
pF
Input Voltage Range (Note 5)
VS = ±15V
q
±12
±13.5
V
VS = ±5V
q
±2
±3.5
V
CMRR
Common Mode Rejection Ratio
VS = ±15V, VCM = ±12V
q
55
62
dB
VS = ±5V, VCM = ±2V
q
50
60
dB
Inverting Input Current
VS = ±15V, VCM = ±12V
q
110
A/V
Common Mode Rejection
VS = ±5V, VCM = ±2V
q
110
A/V
PSRR
Power Supply Rejection Ratio
VS = ±5V to ±15V
q
60
77
dB
Noninverting Input Current
VS = ±5V to ±15V
q
30
500
nA/V
Power Supply Rejection
Inverting Input Current
VS = ±5V to ±15V
q
15
A/V
Power Supply Rejection
AV
Large-Signal Voltage Gain
VS = ±15V, VOUT = ±10V, RL = 25
q
55
68
dB
VS = ±5V, VOUT = ±2V, RL = 12
q
55
68
dB
ROL
Transresistance,
VOUT/IIN–
VS = ±15V, VOUT = ±10V, RL = 25
q
75
200
k
VS = ±5V, VOUT = ±2V, RL = 12
q
75
200
k
VOUT
Maximum Output Voltage Swing
VS = ±15V, RL = 25±11.5
±12.5
V
q
±10.0
±11.5
V
VS = ±5V, RL = 12±2.5
±3V
q
±2.0
±3V
IOUT
Maximum Output Current
VS = ±15V, RL = 1
q
0.5
1
A
IS
Supply Current Per Amplifier
VS = ±15V, VSHDN = 2.5V
29
34
mA
q
42
mA
Supply Current Per Amplifier,
VS = ±15V
15
20
mA
RSHDN = 51k, (Note 6)
q
25
mA
Positive Supply Current, Shutdown
VS = ±15V, VSHDN = 0.4V
q
1
200
A
Output Leakage Current, Shutdown
VS = ±15V, VSHDN = 0.4V
1
200
A
Channel Separation
VS = ±15V, VOUT = ±10V, RL = 25
80
110
dB
HD2, HD3
2nd and 3rd Harmonic Distortion
f = 1MHz, VO = 20VP-P, RL = 50, AV = 2
–75
dBc
Differential Mode
SR
Slew Rate (Note 7)
AV = 4, RL = 400
400
900
V/
s
Slew Rate
AV = 4, RL = 25
900
V/
s
BW
Small-Signal BW
AV = 2, VS = ±15V, Peaking ≤ 1.5dB
65
MHz
RF = RG = 910, RL = 100
AV = 2, VS = ±15V, Peaking ≤ 1.5dB
50
MHz
RF = RG = 820, RL = 25
The q denotes the specifications which apply over the full specified temperature range, otherwise specifications are at TA = 25°C.
VCM = 0V, ±5V ≤ VS ≤ ±15V, pulse tested, VSHDN = 2.5V, VSHDNREF = 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: RSHDN 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 RF = 1k, RG = 333 (AV = +4) and
RL = 400.