Datasheet ADG5421, ADG5423 (Analog Devices)

High Voltage Latch-Up Proof, Dual SPST Switches Data Sheet ADG5421/ ADG5423 FEATURES FUNCTIONAL BLOCK DIAGRAMS Latch-up immune under all circumstances ADG5421 Human body model (HBM) ESD rating: 8 kV S1 Low on resistance: 13.5 Ω IN1 ±9 V to ±22 V dual-supply operation D1 9 V to 40 V single-supply operation D2 IN2 48 V supply maximum ratings S2 Fully specified at ±15 V, ±20 V, +12 V, and +36 V
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VDD to VSS analog signal range SWITCHES SHOWN FOR A LOGIC 0 INPUT
11369-
APPLICATIONS
Figure 1. ADG5421
High voltage signal routing Automatic test equipment ADG5423 Analog front-end circuits Precision data acquisition S1 IN1 Industrial instrumentation D1 Amplifier gain select D2 IN2 Relay replacement S2
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SWITCHES SHOWN FOR A LOGIC 0 INPUT
11369- Figure 2. ADG5423
GENERAL DESCRIPTION PRODUCT HIGHLIGHTS
The ADG5421/ADG5423 are monolithic industrial, 1. Trench isolation guards against latch-up. A dielectric trench complementary metal oxide semiconductor (CMOS) analog separates the P channel and N channel transistors, thereby switches containing two independent latch-up immune single- preventing latch-up even under severe overvoltage pole/single-throw (SPST) switches. Each switch conducts equal y conditions. well in both directions when on, and has an input signal range 2. Low RON of 13.5 Ω. that extends to the power supplies. In the off condition, signal 3. Dual-supply operation. For applications where the analog levels up to the supplies are blocked. Both ADG5421 switches signal is bipolar, the ADG5421/ADG5423 can operate are turned on with a Logic 1 input, whereas the ADG5423 has from dual supplies up to ±22 V. one switch turned on and one switch turned off for a Logic 1 4. Single-supply operation. For applications where the analog input. The ADG5423 exhibits break-before-make action for use signal is unipolar, the ADG5421/ADG5423 can operate from in multiplexer applications. a single-rail power supply up to 40 V. The ultralow on resistance and on-resistance flatness of these 5. 3 V logic compatible digital inputs: VINH = 2.0 V, VINL = 0.8 V. switches make them ideal solutions for data acquisition and gain 6. No VL logic power supply required. switching applications where low distortion is critical. The 7. Available in 10-lead MSOP and 10-lead 3 mm × 3 mm latch-up immune construction and high ESD rating make these LFCSP packages. switches more robust in harsh environments.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAMS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±15 V DUAL SUPPLY ±20 V DUAL SUPPLY 12 V SINGLE SUPPLY 36 V SINGLE SUPPLY CONTINUOUS CURRENT PER CHANNEL, Sx OR Dx ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY APPLICATIONS INFORMATION TRENCH ISOLATION OUTLINE DIMENSIONS ORDERING GUIDE