ds1843 Maxim Integrated Products, Inc., ds1843 Datasheet
ds1843
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ds1843 Summary of contents
Page 1
... It includes a differential, high-speed switched capacitor input sample stage, offset nulling circuitry, and an out- put buffer. The DS1843 is optimized for use in optical line transmission (OLT) systems for burst-mode RSSI measurement in conjunction with an external sense resistor. ...
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Fast Sample-and-Hold Circuit ABSOLUTE MAXIMUM RATINGS Voltage Range on V .............................................-0.5V to +6V CC Voltage Range OUTP OUTN SEN, DEN ............................-0. INP INN * Subject to not exceeding +6V. ...
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... Note the end of the hold time is within OUT Note 6: Voltage step applied across V OUTP by an ADC while it is sampling the DS1843’s output. See the Output Buffer section. Settled within 1% of initial voltage INP INN SEN ...
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... DIFFERENTIAL OUTPUT DURING SAMPLING (V = 6mV) INP 100mV/div V OUTP V OUTN 1.5V/div V SEN OUTP OUTN 5mV/div 60 85 500ns/div SINGLE-ENDED OUTPUT, TRANSIENT WITH 10% V STEP (V CC DS1843 toc08 V SEN 2.0V/div 3.0V CC 100mV/div V OUTP 100μs/div 60 85 DS1843 toc06 = 6mV) INP DS1843 toc09 ...
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... INP DS1843 toc16 200mV/div V OUTP OUTP OUTN V (200mV/div) (200mV/div) OUTN 50ns/div DIFFERENTIAL OUTPUT STEP RECOVERY, 1V OUTPUT STEP (V = 6mV) INP DS1843 toc12 V (200mV/div) OUTP V (200mV/div) OUTN V (1V/div) SEN 200mV/div OUTP OUTN 10mV/div 50μs/div DIFFERENTIAL OUTPUT STEP RECOVERY, 1V OUTPUT STEP (V ...
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... Settling time can be reduced by driving the DS1843 with a lower impedance typical fiber optic application, a current is applied across a 5kΩ resistor. By using a stronger current source, the resistance and the settling time can be reduced (see the Applications Information section for details) ...
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... DS1843 Estimated Settling Time The settling time is dependent on the gain ratio of the current mirror used at the input of the DS1843. For example, the MAX4007 includes a 10:1 ratio current mirror. This requires a 5kΩ resistor to create a 1V full- scale output with 2mA current input to the MAX4007. ...
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... ⎭ PACKAGE CODE L822+1 Maxim is a registered trademark of Maxim Integrated Products, Inc. Pin Configuration TOP VIEW SEN INP OUTP DS1843 INN OUTN DEN 4 5 GND μDFN (2mm × 2mm) Package Information DOCUMENT NO. 21-0164 ...