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LMP8645MKE Datasheet(PDF) 6 Page - Texas Instruments

Part # LMP8645MKE
Description  Precision High Voltage Current Sense Amplifier
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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LMP8645MKE Datasheet(HTML) 6 Page - Texas Instruments

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LMP8645, LMP8645HV
SNOSB29G – NOVEMBER 2009 – REVISED SEPTEMBER 2015
www.ti.com
6.6 5-V Electrical Characteristics
Unless otherwise specified, all limits specified for at TA = 25°C, VS = V
+ – V, V+ = 5 V, V= 0 V, −2 V < V
CM < 76 V, Rg = 25
k
Ω, RL = 10 MΩ.
(1)
PARAMETER
TEST CONDITIONS
MIN(2)
TYP(3)
MAX(2)
UNIT
–1
1
VOS
Input Offset Voltage
VCM = 2.1 V
mV
At the temperature extremes
–1.7
1.7
Input Offset Voltage
TCVOS
VCM = 2.1 V
7
μV/°C
Drift(4)(5)
IB
Input Bias Current(6)
VCM = 2.1 V
12.5
22
μA
eni
Input Voltage Noise(5)
f > 10 kHz, RG = 5 kΩ
120
nV/
√Hz
VSENSE(M
Max Input Sense Voltage(5)
VCM = 12 V, RG = 5 kΩ
600
mV
AX)
Gain AV
Adjustable Gain Setting(5)
VCM = 12 V
1
100
V/V
Transconductance
VCM = 2.1 V
200
µA/V
–2%
2%
Gm
Accuracy
VCM = 2.1 V
At the temperature extremes
–3.4%
3.4%
Gm drift(5)
−40°C to 125°C, VCM = 2.1 V
140 ppm /°C
Power Supply Rejection
PSRR
VCM = 2.1 V, 2.7 V < V
+ < 12 V
90
dB
Ratio
LMP8645HV 2.1 V < VCM < 76 V
95
Common-Mode Rejection
LMP8645 2.1 V < VCM < 42 V
CMRR
dB
Ratio
-2 V < VCM < 2 V
60
RG= 10 kΩ, CG = 4 pF, VSENSE = 400 mV,
850
CL = 30 pF, RL = 1 MΩ
RG= 25 kΩ, CG = 4 pF, VSENSE = 300 mV,
BW
−3-dB Bandwidth(5)
260
kHz
CL = 30 pF, RL = 1 MΩ
RG= 50 kΩ, CG = 4 pF, VSENSE = 300 mV,
140
CL = 30 pF, RL = 1 MΩ
VCM = 5 V, CG = 4 pF, VSENSE from 100 mV
SR
Slew Rate(7)(5)
0.5
V/µs
to 500 mV, CL = 30 pF, RL= 1 MΩ
450
610
VCM = 2.1 V
At the temperature extremes
780
IS
Supply Current
uA
2100
2800
VCM = −2 V
At the temperature extremes
3030
Maximum Output Voltage
VCM = 5 V, Rg = 500 kΩ
3.3
V
VOUT
Minimum Output Voltage
VCM = 2.1 V
22
mV
Sourcing, VOUT = 1.65 V, Rg = 150 kΩ
5
IOUT
Output current(5)
mA
Sinking, VOUT = 1.65 V, Rg = 150 kΩ
5
Max Output Capacitance
CLOAD
30
pF
Load(5)
(1)
Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very
limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under
conditions of internal self-heating where TJ > TA.
(2)
All limits are specified by testing, design, or statistical analysis.
(3)
Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and
will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production
material.
(4)
Offset voltage temperature drift is determined by dividing the change in VOS at the temperature extremes by the total temperature
change.
(5)
This parameter is specified by design and/or characterization and is not tested in production.
(6)
Positive Bias Current corresponds to current flowing into the device.
(7)
The number specified is the average of rising and falling slew rates and measured at 90% to 10%.
6
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Copyright © 2009–2015, Texas Instruments Incorporated
Product Folder Links: LMP8645 LMP8645HV


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