LT6100 TYPICAL PERFORMANCE CHARACTERISTICSStep Response at VSENSE = 0V to10mVStart-Up Delay 10V V– 10V + 20mV/DIV VS 0V V 1V OUT 200mV/DIV VOUT 0V 0V V + 6100 G20 6100 G22 S = 10V 50µs/DIV VCC = 5V 20µs/DIV AV = 50V/V VSENSE = 100mV CL = 1000pF AV = 10V/V VEE = 0V PIN FUNCTIONS V –S (Pin 1): Negative Sense Input Terminal. Negative A2 (Pin 6): Gain Select Pin. Refer to Table 1. sense voltage input will remain functional for voltages A4 (Pin 7): Gain Select Pin. When Pin 7 is shorted to V up to 48V. V – EE, S is connected to an internal gain-setting the total gain is 40V/V. When both Pin 6 and Pin 7 are resistor RG1 = 5k. shorted to VEE, the total gain is 50V/V. When both Pin 6 VCC (Pin 2): Supply Voltage Input. This power supply pin and Pin 7 are opened, the total gain is 10V/V. supplies current to both current sense amplifier and op amp. V +S (Pin 8): Positive Sense Input Terminal. Connecting a FIL (Pin 3): Filter Pin. Connects to an external capacitor supply to V + – S and a load to VS will allow the LT6100 to to roll off differential noise of the system. Pole frequency monitor the current through R + SENSE, refer to Figure 1. VS f–3dB = 1/(2πRFILC), RFIL = RE + RO = 60k. is connected to an internal gain setting resistor RG2 = 5k. + V VS remains functional for voltages up to 48V. EE (Pin 4): Negative Supply or Ground for Single Supply Operation. VOUT (Pin 5): Voltage Output Proportional to the Magnitude of the Current Flowing Through RSENSE: VOUT = AV • (VSENSE ± VOS) VOS is the input offset voltage. AV is the total gain of the LT6100. 6100fd For more information www.linear.com/LT6100 9