Datasheet ADG1421, ADG1422, ADG1423 (Analog Devices)

2.1 Ω On Resistance, ±15 V/+12 V/±5 V
i
CMOS Dual SPST Switches Data Sheet ADG1421/ ADG1422/ ADG1423 FEATURES FUNCTIONAL BLOCK DIAGRAM 2.1 Ω on resistance ADG1421 0.5 Ω maximum on resistance flatness S1 Up to 250 mA continuous current IN1 D1 Fully specified at +12 V, ±15 V, ±5 V No V D2 L supply required IN2 3 V logic-compatible inputs S2 Rail-to-rail operation
1 00 7-
10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP packages SWITCHES SHOWN FOR A LOGIC 0 INPUT
48 08 Figure 1. ADG1421 Functional Block Diagram
APPLICATIONS Automatic test equipment ADG1422 Data acquisition systems S1 Relay replacements IN1 D1 Battery-powered systems Sample-and-hold systems D2 IN2 Audio signal routing S2 Video signal routing
2 00 7-
Communication systems SWITCHES SHOWN FOR A LOGIC 0 INPUT
48 08 Figure 2. ADG1422 Functional Block Diagram
GENERAL DESCRIPTION
The ADG1421/ADG1422/ADG1423 contain two independent
ADG1423
single-pole/single-throw (SPST) switches. The ADG1421 and
S1
ADG1422 differ only in that the digital control logic is inverted.
IN1 D1
The ADG1421 switches are turned on with Logic 1 on the appropriate control input, and Logic 0 is required for the
D2 IN2
ADG1422. The ADG1423 has one switch with digital control
S2
logic similar to that of the ADG1421; the logic is inverted on 3 00 7- the other switch. The ADG1423 exhibits break-before-make
SWITCHES SHOWN FOR A LOGIC 0 INPUT
48 08 switching action for use in multiplexer applications. Each Figure 3. ADG1423 Functional Block Diagram switch conducts equally well in both directions when on and The on resistance profile is very flat over the full analog input has an input signal range that extends to the supplies. In the range ensuring excellent linearity and low distortion when off condition, signal levels up to the supplies are blocked. switching audio signals. The iCMOS construction ensures The iCMOS® (industrial CMOS) modular manufacturing process ultralow power dissipation, making the part ideally suited for combines high voltage, complementary metal-oxide semiconductor portable and battery-powered instruments. (CMOS) and bipolar technologies. It enables the development
PRODUCT HIGHLIGHTS
of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no other generation of high voltage 1. 2.4 Ω maximum on resistance at 25°C. parts has achieved. Unlike analog ICs using conventional CMOS 2. Minimum distortion. processes, iCMOS components can tolerate high supply voltages 3. 3 V logic-compatible digital inputs: VINH = 2.0 V, VINL = 0.8 V. while providing increased performance, dramatically lower 4. No VL logic power supply required. power consumption, and reduced package size. 5. 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP packages.
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Document Outline Features Applications General Description Functional Block Diagram Product Highlights Table of Contents Revision History Specifications ±15 V Dual Supply +12 V Single Supply ±5 V Dual Supply Continuous Current per Channel, S or D Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Test Circuits Terminology Outline Dimensions Ordering Guide