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LT1311 Datasheet(PDF) 1 Page - Linear Technology |
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LT1311 Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LT1311 s Four Complete Current-to-Voltage Converters s 14-Lead Small Outline Package s Accurate Gain: 20mV/ µA, ±4% s Low Offset Error: 250nA Max s Low Offset Drift: 2.5nA/ °C Max s Fast Settling: 145ns to 0.1% for a 2V Step s Wide Bandwidth: 12MHz s Low Noise: 5pA/ √Hz s Low Quiescent Current: 11mA Max s Wide Supply Range: ±2V to ±18V or 4V to 36V The LT ®1311 is a quad current-to-voltage converter de- signed for the demanding requirements of photo diode amplification. A new approach to current-to-voltage con- version provides excellent DC and AC performance with- out external DC trims or AC frequency compensation. The LT1311 is ideal for converting multiple photo diode cur- rents to voltages and for general purpose matched invert- ing amplifier applications. The LT1311 contains four current feedback amplifiers, each with an internal 20k feedback resistor. A supply bypass capacitor is the only external component required to convert four signal currents to voltages. Unlike voltage feedback-based current-to-voltage converters that oper- ate with only a specified value of input capacitance, the current feedback LT1311 settles cleanly with any input capacitance up to 50pF. Only in the most demanding applications will the LT1311 need to be mounted close to the photo diodes. Quad 12MHz, 145ns Settling Precision Current-to-Voltage Converter for Optical Disk Drives FEATURES DESCRIPTION TYPICAL APPLICATION APPLICATIONS s Optical Disk Drive Photo Diode Amplifiers Focus and Tracking Summing Amplifiers s Color Scanners RGB Amplifiers Selectable Gain Amplifiers s Matched Inverting Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. CIN = 1pF CIN = 20pF CIN = 50pF INPUT = 100 µA STEP VS = ±5V 1311 TA02 1 2 3 4 5 6 7 14 13 12 10 9 8 1311 TA01 11 – + – + 5V IN A IN B BIAS IN C IN D OUT A OUT B OUT C VCC 10V OUT D LT1311 0.1 µF Transient Response Photo Diode Current-to-Voltage Converter |
Similar Part No. - LT1311_15 |
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Similar Description - LT1311_15 |
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