ADG791G:  I2C®-Compatible, Wide BW, 4-Channel SPDT Switch w/1 General Purpose Logic Output Pin Controlled by the I2C Interface

The ADG791A/ADG71G is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers controllable via a standard I2C serial interface. The CMOS process provides ultralow power ...More

ADG791G:  I2C®-Compatible, Wide BW, 4-Channel SPDT Switch w/1 General Purpose Logic Output Pin Controlled by the I2C Interface

Product Description

The ADG791A/ADG71G is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers controllable via a standard I2C serial interface. The CMOS process provides ultralow power dissipation yet gives high switching speed and low on resistance.

The on-resistance profile is very flat over the full analog input range and wide bandwidth ensures excellent linearity and low distortion. These features, combined with a wide input signal range make the ADG791A/ADG791G the ideal switching solution for a wide range of TV applications including S-Video, RGB, and YPbPr video switches.

The switches conduct equally well in both directions when ON. In the OFF condition, signal levels up to the supplies are blocked. The ADG791A/ADG791G switches exhibit breakbefore- make switching action. The ADG791G has one generalpurpose logic output pins controlled by the I2C interface that can also be used to control other non I2C compatible devices such as video filters.

The integrated I2C interface provides a large degree of flexibility in the system design. It has three user-settable I2C address pins that allow up to eight devices on the same bus. This allows the user to expand the capability of the device by increasing the size of the switching array.

The ADG791A/ADG71G operates from a single 3 V or 5 V supply voltage and is available in a compact 4 mm × 4 mm body, 24-lead LFCSP package.

Applications
  • S-Video RGB/YPbPr Video Switches
  • HDTVs
  • Projection TVs
  • DVD-R/RW
  • AV Receivers

    • Features

    • Bandwidth: 325 MHz
    • Low Insertion Loss and On Resistance: 2.6 Ω Typical
    • On Resistance Flatness: 0.3 Ω Typical
    • Single 3 V/5 V Supply Operation
    • 3.3 V Analog Signal Range (5V Supply, 75Ω Load)
    • Low Quiescent Supply Current: 1 nA Typical
    • Fast Switching Times
      tON 186 ns
      tOFF 177 ns
    • I2C-Compatible Interface
    • Compact 24-lead LFCSP

    Diagrams

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    • Other Diagrams
    • Symbols and Footprints
    ADG791G Diagram
    Functional Block Diagram for ADG791G

    Specifications

    Switch Type SPDT
    # Channels 4
    Ron (Ohms) 2.6Ohms
    Id, Is (ON) 250pA
    Bandwidth 325MHz
    t ON 186ns
    t OFF 177ns
    Supply Voltage Single (+2.7V to +5.5V),Single (+3.3V),Single (+3V),Single (+5V)
    Power Dissipation (Max) 3.5mW

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    Part# Switch Type # Channels Ron (Ohms) Id, Is (ON) Bandwidth t ON t OFF Supply Voltage Power Dissipation (Max) Product Description Neg Supply Pos Supply Available Packages Price* (1000-4999)
    ADG1436 SPDT 2 1.5 100pA 110MHz 95ns 105ns Dual (±15V), Dual (±5V), Single (+12V) 30µW 1.5 Ohm On Resistance, ±15 V/12 V/±5 V, iCMOS®, Dual SPDT Switch 0 to -16.5 +4.5 to +16.5 CSP, SOP $2.83
    ADG701L SPST 1 2 10pA 200MHz 12ns 8ns Single (+1.8V to +5.5V), Single (+2.5V), Single (+3.3V), Single (+3V), Single (+5V) 5µW Low Voltage, 2 Ohm, SPST (Logic 1 In = Closed) Analog CMOS Switch 0 to 0 +1.8 to +5.5 SOT $0.61
    ADG702L SPST 1 2 38pA 200MHz 12ns 8ns Single (+1.8V to +5.5V), Single (+2.5V), Single (+3.3V), Single (+3V), Single (+5V) 5µW Low Voltage, 2 Ohm, SPST (Logic 1 In = Open) Analog CMOS Switch 0 to 0 +1.8 to +5.5 SOP, SOT $0.61
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    ADG842 SPST 1 0.28 0.2nA 21MHz 10.5ns 6.5ns Single (+1.65V to +3.6V) 14.4µW 0.28 Ohm, 1.65 V to 3.6 V ,Single-Ch CMOS SPST Switch in SC70 (Open for a Logic 1 Input) 0 to 0 +1.65 to +3.6 SC70 $0.58
    ADG901 SPST 1 n/a n/a 4.5GHz 3.6ns 5.8ns Single (+1.65V to +2.75V) 2.5µW Wideband, 37 dB Isolation @ 1GHz, 1.65 V to 2.75 V, SPST, Absorptive (Matched) Analog CMOS Switch n/a to n/a +1.65 to +2.75 CSP, SOP $0.98
    ADG601 SPST 1 2 10pA 180MHz 80ns 45ns Dual (±5V), Single (+5V) 10µW 2.2 Ohm CMOS ± 5V/+5V, SPST Analog CMOS Switch 0 to -5.5