LT1787 データシートの表示（PDF） - Linear Technology
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LT1787 Datasheet PDF : 16 Pages
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LT1787/LT1787HV
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over
TA = 25°C. Total supply = (VS– – VEE) = 2.5V to 36V
the temperature
(LT1787I), 2.5V
range –40°C ≤ TA ≤
to 60V (LT1787HVI)
85°C, otherwise specifications are at
unless otherwise specified. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
VS–, VS+
VSENSE
VOS
VOS TC
IOUT(O)
VOUT(O)
gm
AV
VS PSRR
VEE PSRR
∆VOS
∆VBIAS
IS+(O)
IS–(O)
IEE(O)
IOUT
VOUT
VOMIN
Sense Amplifier Supply Voltage Single Supply Operation (LT1787)
●
Single Supply Operation (LT1787HV)
●
Input Sense Voltage Full Scale VSENSE = VS+ – VS–, VS = 10V, VBIAS = 5V, AV = 8 ±10%
●
Input Offset Voltage (S8)
IOUT = 0, VS Supply = 5V
– 40°C ≤ TA ≤ 85°C
●
IOUT = 0 (LT1787)
– 40°C ≤ TA ≤ 85°C
●
IOUT = 0 (LT1787HV)
– 40°C ≤ TA ≤ 85°C
●
Input Offset Voltage (MS8)
IOUT = 0, VS Supply = 5V
– 40°C ≤ TA ≤ 85°C
●
IOUT = 0 (LT1787)
– 40°C ≤ TA ≤ 85°C
●
IOUT = 0 (LT1787HV)
– 40°C ≤ TA ≤ 85°C
●
Temperature Coefficient of VOS VS Supply = 5V (Note 6)
●
No-Load Output Current Error VSENSE = 0V
No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V
(S8)
– 40°C ≤ TA ≤ 85°C
●
No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V
(MS8)
– 40°C ≤ TA ≤ 85°C
●
Tranconductance, IOUT/ VSENSE ±VSENSE = 10mV, 50mV, 100mV, 150mV, 250mV,
VS Supply = Total Supply + |VSENSE|
Gain, VOUT/ VSENSE
±VSENSE = 100mV, VS Supply = 5V
●
Output Voltage Gain Error
±VSENSE = 100mV, VS Supply = 5V
●
VS Supply Rejection Ratio
VSENSE = 0V, VS Supply = 2.5V to 36V (LT1787)
●
VSENSE = 0V, VS Supply = 2.5V to 60V (LT1787HV)
●
Negative Supply Rejection Ratio VSENSE = 0V, VS Supply = 15V, VBIAS = 0V,
●
VEE = – 1V to – 15V (LT1787)
VSENSE = 0V, VS Supply = 40V, VBIAS = 0V,
●
VEE = – 1V to – 15V (LT1787HV)
Change in Input Offset Voltage VSENSE = 0V, VS Supply = 36V, VBIAS = 0.5V to 25V (LT1787) ●
with Change in VBIAS Voltage VSENSE = 0V, VS Supply = 60V, VBIAS = 0.5V to 25V (LT1787HV) ●
Positive Input Sense Current VSENSE = 0V
●
Negative Input Sense Current VSENSE = 0V
●
Negative Supply Current
VSENSE = 0V
●
Output Current
VSENSE = ±128mV
Output Voltage
VSENSE = ±128mV, VS+ ≥ 3.3V
Ripple Rejection
VS+ = VS– = 20V, ∆VS Supply = 1V, f = 1kHz
●
Minimum Output Voltage
VSENSE = 0V, VBIAS = 0V
VSENSE = VS+ – VS– = –128mV, VBIAS = 0V
VSENSE = 0V, VBIAS = 0V
●
VSENSE = VS+ – VS– = –128mV, VBIAS = 0V
2.5
36
2.5
60
500
– 75 ±40 75
– 200
200
– 100
100
– 225
225
– 100
100
– 225
225
– 125 ±40 125
– 250
250
– 150
150
– 280
280
– 150
150
– 280
280
0.5
2
4
– 600
600
– 1600
1600
– 1000
1000
– 2000
2000
400
7.76
8
8.24
–3
1
3
120 135
120 135
100 130
100 130
100 130
100 130
10
20
50 100
60 120
± 50
VBIAS ±1.024
80
88
30
45
10
30
51
10
UNITS
V
V
mV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV/°C
nA
µV
µV
µV
µV
µA/V
V/V
%
dB
dB
dB
dB
dB
dB
µA
µA
µA
µA
V
dB
mV
mV
mV
mV
1787fc
4
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