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LTC6102HDD-TR Datasheet(PDF) 7 Page - Linear Technology |
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LTC6102HDD-TR Datasheet(HTML) 7 Page - Linear Technology |
7 / 20 page LTC6102/LTC6102HV 7 6102fb Step Response Rising Edge Step Response Falling Edge PSRR vs Frequency Input Referred Noise 0.1Hz to 10Hz Noise Spectral Density –INS (Pin 1): Amplifier Inverting Input. When tied to –INF, the internal sense amplifier will drive –INS to the same potential as +IN. –INF (Pin 2): Force Input. This pin carries the input current from RIN and must be tied to –INS near RIN. A resistor (RIN) tied from V+ to –INF sets the output current IOUT = VSENSE/RIN. VSENSE is the voltage across the ex- ternal RSENSE. V– (Pins 3, 5): Negative Supply. OUT (Pin 4): Open-Drain Current output. OUT will source a current that is proportional to the sense voltage into an ex- ternal resistor. IOUT is the same current that enters –INF. VREG (Pin 6): Internal Regulated Supply. A 0.1μF (or larger) capacitor should be tied from VREG to V+. VREG is not designed to drive external circuits. V+ (Pin 7): Positive Supply. Supply current is drawn through this pin. +IN (Pin 8): Amplifier Non-Inverting Input. Must be tied to the system load end of the sense resistor. Exposed Pad (Pin 9, DFN Only): V–. The Exposed Pad must be soldered to PCB. PIN FUNCTIONS TYPICAL PERFORMANCE CHARACTERISTICS 5.5V 5V 0.5V 0V TIME (500ns/DIV) 6102 G17 VOUT VSENSE – = 100mV IOUT = 100μA IOUT = 0 TA = 25°C V+ = 12V RIN = 100Ω ROUT = 4.99k VSENSE + = V+ 5.5V 5V 0.5V 0V 6102 G18 VOUT VSENSE – = 100mV IOUT = 100μA IOUT = 0 TIME (500ns/DIV) TA = 25°C V+ = 12V RIN = 100Ω ROUT = 4.99k VSENSE + = V+ FREQUENCY (Hz) 0.1 1 10 100 1k 10k 100k 1M 6102 G19 160 140 120 100 80 60 40 20 V+ = 12V RIN = 100Ω ROUT = 4.99k AV = 49.9 IOUT = 500μA 6102 G20 TA = 25°C V+ = 12V RIN = 10Ω ROUT = 1k VSENSE = 2mV TIME (s) 0123456789 10 5 4 3 2 1 0 –5 –4 –3 –2 –1 FREQUENCY (Hz) 100 2 1 0 1k 10k 1M 100k 6102 G21 |
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