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3
LT1787/LT1787HV
1787fc
Input Offset Voltage (MS8) I
OUT
= 0, V
S
Supply = 5V –125 ±40 125 µV
0°C ≤ T
A
≤ 70°C ● –230 230 µV
I
OUT
= 0 (LT1787) –150 150 µV
0°C ≤ T
A
≤ 70°C ● –250 250 µV
I
OUT
= 0 (LT1787HV) –150 150 µV
0°C ≤ T
A
≤ 70°C ● –250 250 µV
V
OS
TC Temperature Coefficient of V
OS
V
S
Supply = 5V (Note 6) ● 0.5 2 µV/°C
I
OUT(O)
No-Load Output Current Error V
SENSE
= 0V 4 nA
V
OUT(O)
No-Load Output Voltage Error V
SENSE
= 0V, V
S
Supply = 5V –600 600 µV
(S8) 0°C ≤ T
A
≤ 70°C ● –1080 1080 µV
No-Load Output Voltage Error V
SENSE
= 0V, V
S
Supply = 5V –1000 1000 µV
(MS8) 0°C ≤ T
A
≤ 70°C ● –1840 1840 µV
g
m
Tranconductance, I
OUT
/V
SENSE
±V
SENSE
= 10mV, 50mV, 100mV, 150mV, 250mV, 400 µA/V
V
S
Supply = Total Supply + |V
SENSE
|
A
V
Gain, V
OUT
/V
SENSE
±V
SENSE
= 100mV, V
S
Supply = 5V ● 7.76 8 8.24 V/V
Output Voltage Gain Error ±V
SENSE
= 100mV, V
S
Supply = 5V ● –3 1 3 %
V
S
PSRR V
S
Supply Rejection Ratio V
SENSE
= 0V, V
S
Supply = 2.5V to 36V (LT1787) ● 120 135 dB
V
SENSE
= 0V, V
S
Supply = 2.5V to 60V (LT1787HV) ● 120 135 dB
V
EE
PSRR Negative Supply Rejection Ratio V
SENSE
= 0V, V
S
Supply = 15V, V
BIAS
= 0V, ● 100 130 dB
V
EE
= –1V to –15V (LT1787)
V
SENSE
= 0V, V
S
Supply = 40V, V
BIAS
= 0V, ● 100 130 dB
V
EE
= –1V to – 15V (LT1787HV)
∆V
OS
Change in Input Offset Voltage V
SENSE
= 0V, V
S
Supply = 36V, V
BIAS
= 0.5V to 25V (LT1787) ● 100 130 dB
∆V
BIAS
with Change in V
BIAS
Voltage V
SENSE
= 0V, V
S
Supply = 60V, V
BIAS
= 0.5V to 25V (LT1787HV) ● 100 130 dB
I
S
+
(O)
Positive Input Sense Current V
SENSE
= 0V ● 10 20 µA
I
S
–
(O)
Negative Input Sense Current V
SENSE
= 0V ● 50 100 µA
I
EE(O)
Negative Supply Current V
SENSE
= 0V ● 60 120 µA
I
OUT
Output Current V
SENSE
= ±128mV ±50 µA
V
OUT
Output Voltage V
SENSE
= ±128mV, V
S
+
≥ 3.3V V
BIAS
±1.024 V
Ripple Rejection V
S
+
= V
S
–
= 20V, ∆V
S
Supply = 1V, f = 1kHz ● 80 88 dB
V
OMIN
Minimum Output Voltage V
SENSE
= 0V, V
BIAS
= 0V 30 45 mV
V
SENSE
= V
S
+
– V
S
–
= –128mV, V
BIAS
= 0V 10 mV
V
SENSE
= 0V, V
BIAS
= 0V ● 30 49 mV
V
SENSE
= V
S
+
– V
S
–
= –128mV, V
BIAS
= 0V 10 mV
Unipolar Output V
SENSE
= 2mV, V
BIAS
= 0V 32 50 mV
Saturation Voltage V
SENSE
= 4mV, V
BIAS
= 0V 38 55 mV
V
SENSE
= 5mV, V
BIAS
= 0V 43 60 mV
V
SENSE
= 6mV, V
BIAS
= 0V 49 65 mV
V
SENSE
= 2mV, V
BIAS
= 0V ● 32 54 mV
V
SENSE
= 4mV, V
BIAS
= 0V ● 38 59 mV
V
SENSE
= 5mV, V
BIAS
= 0V ● 43 64 mV
V
SENSE
= 6mV, V
BIAS
= 0V ● 49 69 mV
V
OMAX
Maximum Output Voltage V
S
+
– 0.75 V
R
G1A,
R
G2A
Input Gain-Setting Resistor Pin 1 to Pin 2, Pin 7 to Pin 8 1.25 kΩ
R
OUT
Output Resistor Pin 5 to Pin 6 20 kΩ
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
The ● denotes the specifications which apply over the temperature range 0°C ≤ T
A
≤ 70°C, otherwise specifications are at T
A
= 25°C.
Total supply = (V
S
–
– V
EE
) = 2.5V to 36V (LT1787C), 2.5V to 60V (LT1787HVC) unless otherwise specified.
(Note 5)