ADG794: Low Voltage, 300 MHz Quad 2:1 Mux Analog HDTV Audio/Video Switch

The ADG794 is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance. The on resistance variation is typically less than 1.2 Ohm over the input signal range.

The bandwidth of the ADG794 is typically 300 MHz and this, coupled with low distortion (typically 0.68%), makes the part suitable for switching analog audio/video signals.

The ADG794 operates from a single 3.3 V/5 V supply and is TTL logic compatible. The switches are controlled by the logic inputs IN and EN as shown in Table 4. The EN pin allows the user to disable all switches.

These switches conduct equally well in both directions when on. In the off condition, signal levels up to the supplies are blocked. The ADG794 switches exhibit break-before-make switching action.

The ADG794 is available in a 16-pin QSOP package.

产品焦点 Product Highlights

Wide bandwidth: 300 MHz.
Ultralow power dissipation.
Crosstalk: -70 dB (typical) at 10 MHz.
Off isolation: -65 dB (typical) at 10 MHz.
ESD protection tested as per ESD Association Standards:

2 kV HBM (ANSI/ESD STM5.1-2001)

200 V MM (ANSI/ESD STM5.2-1999)

1 kV FICDM (ANSI/ESD STM5.3.1-1999)

产品应用领域 Applications

RGB switches
HDTV
DVD-R
Audio/video switches

ADG794 特点

Bandwidth: 300 MHz
Low Insertion Loss and on Resistance: 5 Ohm typical
On Resistance Flatness: 0.68 Ohm Typical
Single 3 V/5 V Supply Operation
Low Quiescent Supply Current: 1 nA Typical
TTL/CMOS Compatible
Fast switching times:
tON, 7 ns
tOFF, 5 ns
ESD protection
2 kV human body model (HBM)
200 V machine model (MM)
1 kV field-induced charged device model (FICDM)

ADG794 功能框图

ADG794 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADG794BRQZ	量产	16 ld QSOP	16	工业
ADG794BRQZ-500RL7	量产	16 ld QSOP	16	工业
ADG794BRQZ-REEL	量产	16 ld QSOP	16	工业
ADG794BRQZ-REEL7	量产	16 ld QSOP	16	工业
ADG794WBRQZ-REEL	量产		16	工业