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MAX9928FAUA+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX9928FAUA+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 14 page  -0.1V to +28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VRS+ = -0.1V to +28V, VCC = 3.3V, VSENSE = (VRS+ - VRS-) = 0V, ROUT = 10kΩ for MAX9928F, TA = -40°C to +125°C, unless other- wise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS AC ELECTRICAL CHARACTERISTICS -3dB Bandwidth BW MAX992_F, VSENSE = 50mV 150 kHz MAX992_F, VSENSE = 5mV to 50mV step 6 OUT Settling to 1% of Final Value tSET VRS+ = 3.6V, CLOAD = 10pF, ROUT = 10k Ω for MAX9928F MAX992_F, VSENSE = 50mV to 5mV step 15 µs Overdrive = 1mV 80 SIGN Comparator Propagation Delay (Low to High) tPROP_LH Overdrive = 5mV 30 µs Overdrive = 1mV 50 SIGN Comparator Propagation Delay (High to Low) tPROP_HL Overdrive = 5mV 13 µs Power-Up Time to 1% of Final Value VSENSE = 50mV for MAX992_F, VRS+ = 3.6V, CLOAD = 10pF 50 µs Saturation Recovery Time 100mV ≤ VSENSE ≤ 50mV for MAX992_F, VRS+ = 3.6V, CLOAD = 10pF 4ms Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design. Note 2: VOS is extrapolated from two point transconductance and gain accuracy tests. Measurements are made at VSENSE = +5mV and VSENSE = +50mV for MAX992_F. These measurements are also used to test the full-scale sense voltage, transconductance, and gain. These VOS specifications are for the trimmed direction only (VRS+ > VRS-). For current flowing in the opposite direction (VRS- > VRS+), VOS is ±1mV (max) at +25°C and ±1.8mV (max) over temperature, when VRS+ is at 3.6V. See the Detailed Description for more information. Note 3: Guaranteed by common-mode rejection ratio. Extrapolated VOS as described in Note 2 is used to calculate common-mode rejection ratio. Note 4: Includes input bias current of SIGN comparator. Note 5: Leakage in to RS+ or RS- when VCC = 0V. Includes input leakage current of SIGN comparator. This specification does not add to the bias current. Note 6: Output voltage should be 650mV below VCC to achieve full accuracy. Note 7: IOL is the minimum output current in the VSENSE - IOUT transfer characteristics. VOL is the minimum output voltage in the VSENSE - VOUT transfer characteristic. Note 8: VSENSE voltage required to switch comparator. Note 9: Discharge to charge trip point is functionally tested at VCM = -0.1V, +3.6V, and +28V. Note 10: Guaranteed by PSRR test. Extrapolated VOS as described in Note 2 is used to calculate the power-supply rejection ratio. VSENSE has to be such that the output voltage is 650mV below VCC to achieve full accuracy. |
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