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DRV401 Datasheet, PDF (6/28 Pages) Burr-Brown (TI) – Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensor | |||
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DRV401
SBVS070A â JUNE 2006 â REVISED OCTOBER 2006
TYPICAL CHARACTERISTICS
At TA = +25°C and VDD1 = VDD2 = +5V with external 100kHz filter BW, unless otherwise noted.
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0.04
DRV401 AND SENSOR:
OFFSET vs SUPPLY VOLTAGE
0.03
0.02
0.01
MM44664455ââXX221111
0
â0.01
M4645âX080
â0.02
â0.03
â0.04
4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
VDD (V)
DRV401 AND SENSOR: ABSOLUTE ERROR
(Soldered DWPâ20 with 1 SquareâInch Copper Pad)
(Measurements by Vacuumschmelza GmbH)
0.3
T = â50_ C
0.2
T = +25_C
T = +85_C
T = +125_ C
0.1
0
â0.1
â0.2
TC (RSHUNT) ±25ppm/_ C.
â0.3
â300 â200 â100
0
100
200
300
Primary Current (A)
3A ICOMP OVERLOAD RECOVERY
(Measurements by Vacuumschmelze GmbH)
OverâRange
OverâRange
VOUT
VOUT
ERROR
ERROR
IPRIM
NOTE: IPRIM = 3000A corresponds to ICOMP = 3A.
IPRIM
0 20 40 60 80 100 120 140 160 180 200
Time (µs)
DRV401 AND SENSOR:
OUTPUT VOLTAGE NOISE DENSITY
(Sensor M4645âX080, RSHUNT = 10â¦, Mode = Low)
100
60Hz Line Frequency and Multiples
(measured in a 60Hz environment)
Divided Field
Probe Frequency
10
0.1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
GAIN FLATNESS vs FREQUENCY
(Measurements by Vacuumschmelze GmbH)
1.20
DRV401 with M4645âX600 Sensor
1.15
DRV401 with M4645âX211 Sensor
DRV401 with M4645âX080 Sensor
1.10
1.05
1.00
0.95
0.90
0.85
0.80
10
100
1k
10k
100k
1M
Frequency (Hz)
DIFFERENTIAL AMPLIFIER:
VOLTAGE OFFSET PRODUCTION DISTRIBUTION
RTO
Voltage Offset (µV)
6
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