DRV401-Q1 Datasheet, PDF (5/39 Pages) Texas Instruments – DRV401-Q1 Sensor Signal Conditioning Device for Closed-Loop Magnetic Current Sensor

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DRV401-Q1
SBOS814 – DECEMBER 2016
6.5 Electrical Characteristics
at T_A = 25°C and V_DD1 = V_DD2 = 5 V with external 100-kHz filter bandwidth (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
DIFFERENTIAL AMPLIFIER
V_OS
Offset voltage, RTO⁽¹⁾⁽²⁾
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
Gain = 4 V/V
±0.01
dV_OS/dT Offset voltage drift, RTO⁽²⁾
CMRR
Offset voltage vs common-mode,
RTO
PSRR
Offset voltage vs power supply,
RTO
SIGNAL INPUT
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
T_A = –40°C to 125°C
I_COMP = 0 mA
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
−1 V to 6 V, V_REF = 2.5 V
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
V_REF not included
±0.1
±50
±4
Common-mode voltage range
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
–1
SIGNAL OUTPUT
Signal overrange indication (OVER-
RANGE), delay⁽²⁾
R_L = 10 kΩ to 2.5 V, V_REFIN = 2.5 V,
T_A = –40°C to 125°C, I_COMP = 0 mA,
V_IN = 1-V step. See ⁽²⁾
Voltage output swing from negative R_L = 10 kΩ to 2.5 V
rail ⁽²⁾,
V_REFIN = 2.5 V
OVER-RANGE trip level
I = 2.5 mA, CMP trip level
2.5 to 3.5
48
Voltage output swing from positive
rail ⁽²⁾,
OVER-RANGE trip level
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
I = −2.5 mA, CMP trip level
V_DD – 85 V_DD – 48
I_SC
Short-circuit current⁽²⁾
Gain, V_OUT/V_{IN_DIFF}
Gain error
Gain error drift
Linearity error
FREQUENCY RESPONSE
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
V_OUT connected to GND
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
V_OUT connected to V_DD
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
T_A = –40°C to 125°C
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
T_A = –40°C to 125°C
I_COMP = 0 mA
V_REFIN = 2.5 V
R_L = 1 kΩ
–18
20
4
±0.02%
±0.1
10
BW_{–3 dB} Bandwidth⁽²⁾
R_L = 10 kΩ to 2.5 V
V_REFIN = 2.5 V
2
R_L = 10 kΩ to 2.5 V
SR
Slew rate⁽²⁾
V_REFIN = 2.5 V
6.5
CMVR = −1 V to 4 V
MAX
±0.1
±1
±250
±50
(V_DD) + 1
85
±0.3%
UNIT
mV
µV/°C
µV/V
µV/V
V
µs
mV
mV
mA
mA
V/V
ppm/°C
ppm
MHz
V/µs
(1) Parameter value referred-to-output (RTO).
(2) θ_JP = junction-to-pad thermal resistance
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