Datasheet AD810 (Analog Devices)

Low Power Video Op Amp with Disable Data Sheet AD810 FEATURES CONNECTION DIAGRAM High speed AD810 80 MHz typical −3 dB bandwidth (G = +1) OFFSET NULL 1 8 DISABLE 75 MHz typical −3 dB bandwidth (G = +2) –IN 2 7 +VS +IN 3 6 OUTPUT 1000 V/µs typical slew rate
001
–VS 4 5 OFSET NULL 50 ns typical settling time to 0.1% (
1737-
V OUT = 10 V step)
Figure 1.
Ideal for video applications 30 MHz typical 0.1 dB bandwidth (G = +2, VS = ±15 V) 0.02% typical differential gain (VS = ±15 V) 0.04° typical differential phase (VS = ±15 V) Low noise 2.9 nV/√Hz typical input voltage noise 13 pA/√Hz typical inverting input current noise Low power 8.0 mA maximum supply current (quiescent) 2.1 mA typical supply current (power-down mode) High performance disable function Turn off time: 100 ns typical Break before make guaranteed Input to output isolation of 64 dB (off state) Flexible operation Specified for ±5 V and ±15 V operation ±2.9 V typical output swing into a 150 Ω load (VS = ±5 V) APPLICATIONS Professional video cameras Multimedia systems NTSC-, PAL-, and SECAM-compatible systems Video line drivers ADC or DAC buffers DC restoration circuits GENERAL DESCRIPTION
The AD810 is a composite and HDTV-compatible, current maximum. The disable feature reduces the power supply feedback, video operational amplifier, ideal for use in systems current to only 2.1 mA, while the amplifier is not in use, to such as multimedia, digital tape recorders, and video cameras. conserve power. Furthermore, the AD810 is specified over a The 0.1 dB flatness specification at a bandwidth of 30 MHz power supply range of ±5 V to ±15 V. (G = +2) and the differential gain and phase of 0.02% and 0.04° The AD810 works well as an ADC or DAC buffer in video (NTSC) make the AD810 ideal for any broadcast quality video systems due to its unity gain (G = +1) −3 dB bandwidth of system. All these specifications are under load conditions of 80 MHz. Because the AD810 is a transimpedance amplifier, this 150 Ω (one 75 Ω back terminated cable). bandwidth can be maintained over a wide range of gains while The AD810 is ideal for power sensitive applications such as featuring a low noise of 2.9 nV/√Hz for wide dynamic range video cameras, offering a low power supply current of 8.0 mA applications.
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Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION GENERAL DESIGN CONSIDERATIONS ACHIEVING VERY FLAT GAIN RESPONSE AT HIGH FREQUENCY CHOICE OF FEEDBACK RESISTOR PRINTED CIRCUIT BOARD LAYOUT QUALITY OF COAXIAL CABLE POWER SUPPLY BYPASSING POWER SUPPLY OPERATING RANGE OFFSET NULLING DISABLE MODE APPLICATIONS INFORMATION CAPACITIVE LOADS OPERATION AS A VIDEO LINE DRIVER 2:1 VIDEO MULTIPLEXER 4:1 MULTIPLEXER OUTLINE DIMENSIONS ORDERING GUIDE