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MAX306EPI Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX306EPI Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 13 page __________Applications Information Operation with Supply Voltages Other than ±15V Using supply voltages other than ±15V will reduce the analog signal range. The MAX306/MAX307 switches operate with ±4.5V to ±20V bipolar supplies or with a +5V to +30V single supply; connect V- to GND when operating with a single supply. Also, both device types can operate with unbalanced supplies such as +24V and -5V. The Typical Operating Characteristics graphs show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.) Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maxi- mum ratings because stresses beyond the listed rat- ings may cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by either the logic inputs, NO or COM. If power-supply sequenc- ing is not possible, add two small-signal diodes in series with supply pins for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to 1V above V+ and 1V below V-, but low switch resistance and low leakage characteristics are unaf- fected. Device operation is unchanged, and the differ- ence between V+ and V- should not exceed +44V. Precision, 16-Channel/Dual 8-Channel, High-Performance, CMOS Analog Multiplexers 6 _______________________________________________________________________________________ Output–bidirectional COM 28 Address Inputs A3–A0 14–17 Enable Inputs EN 18 Analog Inputs–bidirectional NO1–NO8 19–26 Negative Supply Voltage Input V- 27 Ground GND 12 Analog Inputs–bidirectional NO16–NO9 4–11 MAX306 PIN No Connection. Not internally connected. N.C. 2, 3, 13 Positive Supply Voltage Input V+ 1 FUNCTION NAME Negative Supply Voltage Input V- 27 Output A–bidirectional COMA 28 Ground GND 12 Address Inputs A2, A1, A0 15, 16, 17 Enable Input EN 18 Analog Inputs–bidirectional NO1A–NO8A 19–26 Analog Inputs–bidirectional NO8B–NO1B 4–11 No Connection. Not internally connected. N.C. 3, 13, 14 MAX307 PIN Output B–bidirectional COMB 2 Positive Supply Voltage Input V+ 1 FUNCTION NAME _____________________________________________________________Pin Descriptions Vg NO COM V- V+ Figure 1. Overvoltage Protection Using External Blocking Diodes |
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