MAX354 Maxim, MAX354 Datasheet
MAX354
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MAX354 Summary of contents
Page 1
... The MAX354/MAX355 also protect sensitive circuit components against voltages near or beyond the normal supplies. The MAX354 single 8-channel mux and the MAX355 dual 4-channel mux protect analog signals while oper- ating from a single 4.5V to 36V supply or ±4.5V to ±18V dual supplies. These muxes have 350Ω ...
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... MAX T = +25° ±10V, COM V = ±10V, ± MAX355 MIN MAX T = +25°C A MAX354 MIN V = ±10V, COM to T MAX V = ±10V, NO sequence each T = +25°C A switch on MAX355 MIN to T MAX = +70° unless otherwise noted.) ...
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Fault-Protected Analog Multiplexers ELECTRICAL CHARACTERISTICS (continued) (V+ = +15V -15V, GND = 0V PARAMETER SYMBOL FAULT Output Leakage Current (with Overvoltage) Input Leakage Current (with Overvoltage) Input Leakage Current (with Power Supplies Off) DIGITAL LOGIC INPUT ...
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... TEMPERATURE (°C) 4 _______________________________________________________________________________________ = 2.4V 0.8V ENH AL ENL A CONDITIONS MAX354 f = 1MHz, Figure +25° MAX355 MAX354 f = 1MHz, Figure +25° MAX355 +25°C A 0.01% ON-RESISTANCE vs. ANALOG VOLTAGE 2000 1800 V+ = +5V 1600 V- = -5V 1400 V+ = +10V 1200 ...
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... A SUPPLY CURRENT vs. TEMPERATURE 1000 V+ = +15V V- = -15V V = +5V EN 100 10 1 0.1 -75 -50 - TEMPERATURE (°C) ______________________________________________________________Pin Description PIN NAME MAX354 MAX355 1, 15, 16 — A0, A2, A1 — A0 4–7 — NO1–NO4 — 4–7 NO1A–NO4A 8 — COM — ...
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... V+ NO1B A1 A0 NO1A-NO4A NO4B MAX355 COMB GND V- 50 -15V Figure 1. Transition Time +15V NO2–NO8 A0 MAX354 A1 A2 GND V- 50 -15V +15V NO1A–NO4A NO2B–NO4B, A0 COMA MAX355 A1 COMB GND V- 50 -15V Figure 2. Enable Switching Time ...
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... Circuits/Timing Diagrams (continued) +15V +2.4V EN NO1–NO8 A0 MAX354 GND V- 50 -15V Figure 3. Break-Before-Make Interval MAX354 CHANNEL A1 SELECT A2 GND Figure 4. Charge Injection _______________________________________________________________________________________ +10V COM V OUT 35pF 300 +15V V+ +3V LOGIC INPUT COM ...
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... Figure 7. NO/COM Capacitance _______________Detailed Description Fault-Protection Circuitry Maxim’s MAX354/MAX355 are fully fault protected for continuous input voltages up to ±40V, whether or not the V+ and V- power supplies are present. These devices use a “series FET” protection scheme that not only protects the multiplexer output from overvoltage, but also limits the input current to sub-microamp levels ...
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... Table 1 shows typical charge injection levels versus power-supply voltages and analog input voltage. The charge injection that occurs during switching creates a voltage transient whose magnitude is inversely propor- tional to the capacitance on the multiplexer output. Table 1. MAX354 Charge Injection Supply Voltage ±10V ), the N-channel FET is typically ± ...
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... MAX354 output, which are deter- ON signal source resistance in most cases, since the load driven by the MAX354 is usually high impedance. For a signal source impedance of 10kΩ or lower, the DC crosstalk exceeds 120dB. Tables 2a and 2b show typical AC crosstalk and off- isolation performance. Digital feedthrough is masked by the analog charge injection when the output is enabled ...
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... Similar crosstalk rejection can be observed between any two channels. V- GND COM A2 EN GND COMA COMB EN 100kHz = 1.5kΩ 92dB = 10kΩ 76dB L connected from OUT to ground +5V (Channel 1 selected). 20Vp MAX354 SWITCH NONE ...
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... Fault-Protected Analog Multiplexers __________________________________________________________Chip Topographies MAX354 N01 N02 N03 N04 COM N08 N07 0.115" (2.92mm) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...