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LTC1150 Datasheet(PDF) 8 Page - Linear Technology |
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LTC1150 Datasheet(HTML) 8 Page - Linear Technology |
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8 / 16 page  LTC1150 8 1150fb 0.1Hz to 1Hz Noise, V = ±15V, TA = 25°C, fS = 1800Hz LTC1150 • TPC28 10s 500nV 100s 300nVP-P ISUPPLY (Pin 1): Supply Current Programming. The sup- ply current can be programmed through Pin 1. When Pin 1 is left open or tied to V+, the supply current defaults to 800µA. Tying a resistor between Pin 1 and Pin 4, the negative supply pin, will reduce the supply current. The supply current, as a function of the resistor value, is shown in Typical Performance Characteristics. –IN (Pin 2): Inverting Input. +IN (Pin 3): Noninverting Input. V– (Pin 4): Negative Supply. EXT CLOCK IN (Pin 5): Optional External Clock Input. The LTC1150 has an internal oscillator to control the circuit operation of the amplifier if Pin 5 is left open or biased at any DC voltage in the supply voltage range. When an external clock is desirable, it can be applied to Pin 5. The applied clock is AC-coupled to the internal circuitry to simplified interface requirements. The amplitude of the clock input signal needs to be greater than 2V and the voltage level has to be within the supply voltage range. Duty cycle is not critical. The internal chopping frequency is the external clock frequency divided by four. When frequency of the external clock falls below 100Hz (internal chopping at 25Hz), the internal oscillator takes over and the circuit chops at 550Hz. OUT (Pin 6): Output. V+ (Pin 7): Positive Supply. CLOCK OUT (Pin 8): Clock Output. The signal coming out of this pin is at the internal oscillator frequency of about 2.2kHz (four times the chopping frequency) and has voltage levels at VH = VS and VL = VS –4.6. If the circuit is driven by an external clock, Pin 8 is pulled up to VS. 8-Pin Packages TYPICAL PERFOR A CE CHARACTERISTICS PI DESCRIPTIO S |
Similar Part No. - LTC1150_03 |
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Similar Description - LTC1150_03 |
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