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LT1787HS8 Datasheet(PDF) 5 Page - Linear Technology |
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LT1787HS8 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 16 page  5 LT1787/LT1787HV 1787fc ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the temperature range –40 °C ≤ TA ≤ 85°C, otherwise specifications are at TA = 25°C. Total supply = (VS – – VEE) = 2.5V to 36V (LT1787I), 2.5V to 60V (LT1787HVI) unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Unipolar Output VSENSE = 2mV, VBIAS = 0V 32 50 mV Saturation Voltage VSENSE = 4mV, VBIAS = 0V 38 55 mV VSENSE = 5mV, VBIAS = 0V 43 60 mV VSENSE = 6mV, VBIAS = 0V 49 65 mV VSENSE = 2mV, VBIAS = 0V ● 32 56 mV VSENSE = 4mV, VBIAS = 0V ● 38 61 mV VSENSE = 5mV, VBIAS = 0V ● 43 66 mV VSENSE = 6mV, VBIAS = 0V ● 49 71 mV VOMAX Maximum Output Voltage VS+ – 0.75 V RG1A, RG2A Input Gain-Setting Resistor Pin 1 to Pin 2, Pin 7 to Pin 8 1.25 k Ω ROUT Output Resistor Pin 5 to Pin 6 20 k Ω VS–, VS+ Sense Amplifier Supply Voltage Single Supply Operation (LT1787H) ● 2.5 36 V Single Supply Operation (LT1787HVH) ● 2.5 60 V VSENSE Input Sense Voltage Full Scale VSENSE = VS + – VS–, VS = 10V, VBIAS = 5V, AV = 8 ±10% ● 500 mV VOS Input Offset Voltage IOUT = 0, VS Supply = 5V – 75 ±40 75 µV –40 °C ≤ TA ≤ 125°C ● – 400 400 µV IOUT = 0 (LT1787H) – 100 100 µV –40 °C ≤ TA ≤ 125°C ● – 550 550 µV IOUT = 0 (LT1787HVH) – 100 100 µV –40 °C ≤ TA ≤ 125°C ● – 550 550 µV VOS TC Temperature Coefficient of VOS VS Supply = 5V (Note 6) ● 0.5 4 µV/°C IOUT(O) No-Load Output Current Error VSENSE = 0V 4 nA VOUT(O) No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V –600 600 µV –40 °C ≤ TA ≤ 125°C ● –3200 3200 µV gm Tranconductance, IOUT/VSENSE ±VSENSE = 10mV, 50mV, 100mV, 150mV, 250mV, 400 µA/V VS Supply = Total Supply + |VSENSE| AV Gain, VOUT/VSENSE ±VSENSE = 100mV, VS Supply = 5V ● 7.76 8 8.24 V/V Output Voltage Gain Error ±VSENSE = 100mV, VS Supply = 5V ● –3 1 3 % VS PSRR VS Supply Rejection Ratio VSENSE = 0V, VS Supply = 2.5V to 36V (LT1787H) ● 100 130 dB VSENSE = 0V, VS Supply = 2.5V to 60V (LT1787HVH) ● 100 130 dB VEE PSRR Negative Supply Rejection Ratio VSENSE = 0V, VS Supply = 15V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787H) VSENSE = 0V, VS Supply = 40V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787HVH) ∆VOS Change in Input Offset Voltage VSENSE = 0V, VS Supply = 36V, VBIAS = 0.5V to 25V (LT1787H) ● 100 130 dB ∆VBIAS with Change in VBIAS Voltage VSENSE = 0V, VS Supply = 60V, VBIAS = 0.5V to 25V (LT1787HVH) ● 100 130 dB IS+(O) Positive Input Sense Current VSENSE = 0V ● 10 25 µA IS–(O) Negative Input Sense Current VSENSE = 0V ● 50 115 µA IEE(O) Negative Supply Current VSENSE = 0V ● 60 140 µA IOUT Output Current VSENSE = ±128mV ±50 µA VOUT Output Voltage VSENSE = ±128mV, VS + ≥ 3.3V VBIAS ±1.024 V Ripple Rejection VS + = VS– = 20V, ∆VS Supply = 1V, f = 1kHz ● 80 88 dB The ● denotes the specifications which apply over the temperature range –40 °C ≤ TA ≤ 125°C, otherwise specifications are at TA = 25°C. Total supply = (VS– – VEE) = 2.5V to 36V (LT1787H), 2.5V to 60V (LT1787HVH) unless otherwise specified. (Note 5) |
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