参数资料
型号: LT1787CMS8#TR
厂商: Linear Technology
文件页数: 13/16页
文件大小: 0K
描述: IC AMP PREC CURRENT SENSE 8MSOP
标准包装: 2,500
放大器类型: 电流检测
电路数: 1
电压 - 输入偏移: 40µV
电流 - 电源: 60µA
电流 - 输出 / 通道: 50µA
电压 - 电源,单路/双路(±): 2.5 V ~ 36 V,±1.25 V ~ 18 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
6
LT1787/LT1787HV
1787fc
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: ESD (Electrostatic Discharge) sensitive devices. Extensive use of
ESD protection devices are used internal to the LT1787/LT1787HV,
however, high electrostatic discharge can damage or degrade the device.
Use proper ESD handling precautions.
Note 3: The LT1787C/LT1787I are guaranteed functional over the
operating temperature range of –40
°C to 85°C. The LT1787H is
guaranteed functional over the operating temperature range of –40
°C to
125
°C.
Note 4: The LT1787C is guaranteed to meet specified performance from
0
°C to 70°C. The LT1787C is designed, characterized and expected to
meet specified performance from –40
°C to 85°C but is not tested or QA
sampled at these temperatures. The LT1787I is guaranteed to meet
specified performance from – 40
°C to 85°C. The LT1787H is guaranteed to
meet specified performance from –40
°C to 125°C.
Note 5: Testing done at VBIAS = 1.25V, VEE = 0V unless otherwise
specified.
Note 6: This parameter is not 100% tested.
ELECTRICAL CHARACTERISTICS
No Load Output Voltage
vs Supply Voltage
TOTAL SUPPLY VOLTAGE (V)
010
OUTPUT
VOLTAGE
(
V)
20
40
30
50
60
1787 G02
400
300
200
100
0
–100
–200
–300
–400
TA = 85°C
TA = 25°C
TA = –40°C
VS
+ = V
S
VBIAS = 0V
VEE = –1.25V
TOTAL SUPPLY VOLTAGE (V)
0
OUTPUT
CURRENT
(nA)
10
20
30
40
1787 G03
50
10
8
6
4
2
0
–2
–4
–6
–8
–10
60
VBIAS = 1V
VEE = 0V
VS
+ = V
S
TA = 25°C
TA = 85°C
TA = –40°C
No Load Output Current vs
Supply Voltage
TOTAL SUPPLY VOLTAGE (V)
0
INPUT
OFFSET
VOLTAGE
(
V)
10
20
30
40
1787 G01
50
40
30
20
10
0
–10
–20
–30
–40
–50
60
VS
+ = V
S
VBIAS = 0V
VEE = –1.25V
TA = 25°C
TA = 85°C
TA = –40°C
Input Offset Voltage vs
Supply Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOMIN
Minimum Output Voltage
VSENSE = 0V, VBIAS = 0V
30
45
mV
VSENSE = VS+ – VS– = –128mV, VBIAS = 0V
10
mV
VSENSE = 0V, VBIAS = 0V
30
55
mV
VSENSE = VS
+ – VS– = –128mV, VBIAS = 0V
10
mV
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
60
mV
VSENSE = 4mV, VBIAS = 0V
38
65
mV
VSENSE = 5mV, VBIAS = 0V
43
70
mV
VSENSE = 6mV, VBIAS = 0V
49
75
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
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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