Datasheet MAX4080, MAX4081 (Maxim) - 4
| Manufacturer | Maxim |
| Description | 76V, High-Side, Current-Sense Amplifiers with Voltage Output |
| Pages / Page | 14 / 4 — AC Electrical Characteristics. PARAMETER. SYMBOL. CONDITION. MIN. TYP. … |
| File Format / Size | PDF / 1.6 Mb |
| Document Language | English |
AC Electrical Characteristics. PARAMETER. SYMBOL. CONDITION. MIN. TYP. MAX. UNITS. Note 1:. Note 2:. Note 3:. Note 4:. Note 5:. Note 6:. Note 7:
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MAX4080/MAX4081 76V, High-Side, Current-Sense Amplifiers with Voltage Output
AC Electrical Characteristics
(VCC = VRS+ = 4.5V to 76V, VREF1A = VREF1B = 5V (MAX4081 only), VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100kΩ, CLOAD = 20pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
MAX4080F/T/S 250 Bandwidth BW VCC = VRS+ = 48V, VOUT = 2.5V kHz MAX4081F/T/S 150 OUT Settling Time to 1% of Final VSENSE = 10mV to 100mV 20 Value µs VSENSE = 100mV to 10mV 20 Capacitive-Load Stability No sustained oscillations 500 pF Output Resistance ROUT VSENSE = 100mV 0.1 Ω Power-Up Time VCC = VRS+ = 48V, VSENSE = 100mV (Note 9) 50 µs Saturation Recovery Time (Notes 9,10) 50 µs
Note 1:
All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2:
VREF is defined as the average voltage of VREF1A and VREF1B. REF1B is usually connected to REF1A or GND. VSENSE is defined as VRS+ - VRS-.
Note 3:
The common-mode range at the low end of 4.5V applies to the most positive potential at RS+ or RS-. Depending on the polarity of VSENSE and the device’s gain, either RS+ or RS- can extend below 4.5V by the device’s typical full-scale value of VSENSE.
Note 4:
Negative VSENSE applies to MAX4081 only.
Note 5:
VSENSE is: MAX4080F, 10mV to 1000mV MAX4080T, 10mV to 250mV MAX4080S, 10mV to 100mV MAX4081F, -500mV to +500mV MAX4081T, -125mV to +125mV MAX4081S, -50mV to +50mV
Note 6:
VOS is extrapolated from the gain accuracy test for the MAX4080 and measured as (VOUT - VREF)/AV at VSENSE = 0V, for the MAX4081.
Note 7:
VSENSE is: MAX4080F, 500mV MAX4080T, 125mV MAX4080S, 50mV MAX4081F/T/S, 0V VREF1B = VREF1A = 2.5V
Note 8:
Output voltage is internally clamped not to exceed 18V.
Note 9:
Output settles to within 1% of final value.
Note 10:
The device will not experience phase reversal when overdriven. www.maximintegrated.com Maxim Integrated │ 4
AC Electrical Characteristics
(VCC = VRS+ = 4.5V to 76V, VREF1A = VREF1B = 5V (MAX4081 only), VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100kΩ, CLOAD = 20pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
MAX4080F/T/S 250 Bandwidth BW VCC = VRS+ = 48V, VOUT = 2.5V kHz MAX4081F/T/S 150 OUT Settling Time to 1% of Final VSENSE = 10mV to 100mV 20 Value µs VSENSE = 100mV to 10mV 20 Capacitive-Load Stability No sustained oscillations 500 pF Output Resistance ROUT VSENSE = 100mV 0.1 Ω Power-Up Time VCC = VRS+ = 48V, VSENSE = 100mV (Note 9) 50 µs Saturation Recovery Time (Notes 9,10) 50 µs
Note 1:
All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2:
VREF is defined as the average voltage of VREF1A and VREF1B. REF1B is usually connected to REF1A or GND. VSENSE is defined as VRS+ - VRS-.
Note 3:
The common-mode range at the low end of 4.5V applies to the most positive potential at RS+ or RS-. Depending on the polarity of VSENSE and the device’s gain, either RS+ or RS- can extend below 4.5V by the device’s typical full-scale value of VSENSE.
Note 4:
Negative VSENSE applies to MAX4081 only.
Note 5:
VSENSE is: MAX4080F, 10mV to 1000mV MAX4080T, 10mV to 250mV MAX4080S, 10mV to 100mV MAX4081F, -500mV to +500mV MAX4081T, -125mV to +125mV MAX4081S, -50mV to +50mV
Note 6:
VOS is extrapolated from the gain accuracy test for the MAX4080 and measured as (VOUT - VREF)/AV at VSENSE = 0V, for the MAX4081.
Note 7:
VSENSE is: MAX4080F, 500mV MAX4080T, 125mV MAX4080S, 50mV MAX4081F/T/S, 0V VREF1B = VREF1A = 2.5V
Note 8:
Output voltage is internally clamped not to exceed 18V.
Note 9:
Output settles to within 1% of final value.
Note 10:
The device will not experience phase reversal when overdriven. www.maximintegrated.com Maxim Integrated │ 4
