● denotes the specifications which apply over the temp" />
參數(shù)資料
型號(hào)： LT1787IS8#TR
廠商： Linear Technology
文件頁(yè)數(shù)： 12/16頁(yè)
文件大小： 0K
描述： IC AMP PREC CURRENT SENSE 8SOIC
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 電流檢測(cè)
電路數(shù)： 1
電壓 - 輸入偏移： 40µV
電流 - 電源： 60µA
電流 - 輸出 / 通道： 50µA
電壓 - 電源，單路/雙路(±)： 2.5 V ~ 36 V，±1.25 V ~ 18 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SO
包裝： 帶卷 (TR)
5
LT1787/LT1787HV
1787fc
ELECTRICAL CHARACTERISTICS
The
● denotes the specifications which apply over the temperature range –40
°C ≤ TA ≤ 85°C, otherwise specifications are at
TA = 25°C. Total supply = (VS
– – VEE) = 2.5V to 36V (LT1787I), 2.5V to 60V (LT1787HVI) unless otherwise specified. (Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Unipolar Output
VSENSE = 2mV, VBIAS = 0V
32
50
mV
Saturation Voltage
VSENSE = 4mV, VBIAS = 0V
38
55
mV
VSENSE = 5mV, VBIAS = 0V
43
60
mV
VSENSE = 6mV, VBIAS = 0V
49
65
mV
VSENSE = 2mV, VBIAS = 0V
●
32
56
mV
VSENSE = 4mV, VBIAS = 0V
●
38
61
mV
VSENSE = 5mV, VBIAS = 0V
●
43
66
mV
VSENSE = 6mV, VBIAS = 0V
●
49
71
mV
VOMAX
Maximum Output Voltage
VS+ – 0.75
V
RG1A, RG2A Input Gain-Setting Resistor
Pin 1 to Pin 2, Pin 7 to Pin 8
1.25
k
ROUT
Output Resistor
Pin 5 to Pin 6
20
k
VS–, VS+
Sense Amplifier Supply Voltage Single Supply Operation (LT1787H)
●
2.5
36
V
Single Supply Operation (LT1787HVH)
●
2.5
60
V
VSENSE
Input Sense Voltage Full Scale
VSENSE = VS
+ – VS–, VS = 10V, VBIAS = 5V, AV = 8 ±10%
●
500
mV
VOS
Input Offset Voltage
IOUT = 0, VS Supply = 5V
– 75
±40
75
V
–40
°C ≤ TA ≤ 125°C
●
– 400
400
V
IOUT = 0 (LT1787H)
– 100
100
V
–40
°C ≤ TA ≤ 125°C
●
– 550
550
V
IOUT = 0 (LT1787HVH)
– 100
100
V
–40
°C ≤ TA ≤ 125°C
●
– 550
550
V
VOS TC
Temperature Coefficient of VOS VS Supply = 5V (Note 6)
●
0.5
4
V/°C
IOUT(O)
No-Load Output Current Error
VSENSE = 0V
4
nA
VOUT(O)
No-Load Output Voltage Error
VSENSE = 0V, VS Supply = 5V
–600
600
V
–40
°C ≤ TA ≤ 125°C
● –3200
3200
V
gm
Tranconductance, IOUT/VSENSE
±VSENSE = 10mV, 50mV, 100mV, 150mV, 250mV,
400
A/V
VS Supply = Total Supply + |VSENSE|
AV
Gain, VOUT/VSENSE
±VSENSE = 100mV, VS Supply = 5V
●
7.76
8
8.24
V/V
Output Voltage Gain Error
±VSENSE = 100mV, VS Supply = 5V
●
–3
1
3
%
VS PSRR
VS Supply Rejection Ratio
VSENSE = 0V, VS Supply = 2.5V to 36V (LT1787H)
●
100
130
dB
VSENSE = 0V, VS Supply = 2.5V to 60V (LT1787HVH)
●
100
130
dB
VEE PSRR Negative Supply Rejection Ratio VSENSE = 0V, VS Supply = 15V, VBIAS = 0V,
●
100
130
dB
VEE = – 1V to – 15V (LT1787H)
VSENSE = 0V, VS Supply = 40V, VBIAS = 0V,
●
100
130
dB
VEE = – 1V to – 15V (LT1787HVH)
VOS
Change in Input Offset Voltage
VSENSE = 0V, VS Supply = 36V, VBIAS = 0.5V to 25V (LT1787H)
●
100
130
dB
VBIAS
with Change in VBIAS Voltage
VSENSE = 0V, VS Supply = 60V, VBIAS = 0.5V to 25V (LT1787HVH) ●
100
130
dB
IS+(O)
Positive Input Sense Current
VSENSE = 0V
●
10
25
A
IS–(O)
Negative Input Sense Current
VSENSE = 0V
●
50
115
A
IEE(O)
Negative Supply Current
VSENSE = 0V
●
60
140
A
IOUT
Output Current
VSENSE = ±128mV
±50
A
VOUT
Output Voltage
VSENSE = ±128mV, VS
+
≥ 3.3V
VBIAS ±1.024
V
Ripple Rejection
VS
+ = VS– = 20V, VS Supply = 1V, f = 1kHz
●
80
88
dB
The
● denotes the specifications which apply over the temperature range –40
°C ≤ TA ≤ 125°C, otherwise specifications are at
TA = 25°C. Total supply = (VS– – VEE) = 2.5V to 36V (LT1787H), 2.5V to 60V (LT1787HVH) unless otherwise specified. (Note 5)
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