INA240PMPWPSEP

The INA240-SEP device is a voltage-output, currentsense amplifier with enhanced PWM rejection that
can sense drops across shunt resistors over a wide
common-mode voltage range from –4 V to 80 V,
independent of the supply voltage. The negative
common-mode voltage allows the device to operate
below ground, accommodating the flyback period of
typical solenoid applications. Enhanced PWM
rejection provides high levels of suppression for large
common-mode transients (ΔV/Δt) in systems that use
pulse width modulation (PWM) signals (such as motor
drives and solenoid control systems). This feature
allows for accurate current measurements without
large transients and associated recovery ripple on the
output voltage.
This device operates from a single 2.7-V to 5.5-V
power supply, drawing a maximum of 2.4 mA of
supply current. The fixed gain is 20 V/V. The low
offset of the zero-drift architecture enables current
sensing with maximum drops across the shunt as low
as 10-mV full-scale.

Category: Amplifiers

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SPECIFICATION

1• VID V62/18615
• Radiation Hardened
– Single Event Latch-up (SEL) Immune to 43
MeV-cm2
/mg at 125°C
– ELDRS Free to 30 krad(Si)
– Total Ionizing Dose (TID) RLAT for Every
Wafer Lot up to 20 krad(Si)
• Space Enhanced Plastic
– Controlled Baseline
– Gold Wire
– NiPdAu Lead Finish
– One Assembly and Test Site
– One Fabrication Site
– Available in Military (–55°C to 125°C)
Temperature Range
– Extended Product Life Cycle
– Extended Product-Change Notification
– Product Traceability
– Enhanced Mold Compound for Low
Outgassing
• Enhanced PWM Rejection
• Excellent CMRR: 132 dB (Typical)
• Wide Common-Mode Range: –4 V to 80 V
• Gain: 20 V/V:
– Gain Error: 0.2% (Maximum)
– Gain Drift: 2.5 ppm/°C (Maximum)
• Offset Voltage: ±25 μV (Maximum)
• Offset Drift: 250 nV/°C (Maximum)
• Quiescent Current: 2.4 mA (Maximum)