S-5470A21I-M5T1U Datasheet, PDF (16/24 Pages) Seiko Instruments Inc – ULTRA-LOW CURRENT CONSUMPTION

ULTRA-LOW CURRENT CONSUMPTION NORMALLY-OFF FAINT SIGNAL DETECTION IC
S-5470 Series
Rev.1.3_01
 Precautions
• Use the S-5470 Series with the output current of 20 mA or less.
• The S-5470 Series may malfunction if the power supply voltage changes suddenly.
• As for the detecting circuit of the photocurrent difference (Refer to "Figure 22, Figure 23 Example Photocurrent
Level Difference Detector"), use the S-5470 Series when input current of INP pin is 20 μA or less and input
current of INM pin is 10 μA or less. In case of input current excess, note that the S-5470 Series might malfunction.
• The output in the S-5470 Series is unstable in lower voltage than the minimum operation voltage. At the time of
power-on, use the S-5470 Series after output stabilization.
• Set a capacitor of 0.1 μF or more between the VDD pin and VSS pin for stabilization.
• Since INP pin and INM pin is easy to be affected by disturbance noise, perform countermeasures such as
mounting external parts to ICs as close as possible.
• If power impedance is high, the S-5470 Series may malfunction due to voltage drop caused by feed-through
current. Set wire patterns carefully for lower power impedance.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
• SII Semiconductor Corporation claims no responsibility for any disputes arising out of or in connection with any
infringement by products including this IC of patents owned by a third party.
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