OPA3875 Triple 2:1 High-Speed Video Multiplexer | TI.com

OPA3875
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Triple 2:1 High-Speed Video Multiplexer

Triple 2:1 High-Speed Video Multiplexer - OPA3875
Datasheet
 

Description

The OPA3875 offers a very wideband, 3-channel, 2:1 multiplexer in a small SSOP-16 package. Using only 11mA/ch, the OPA3875 provides three, gain of +2, video amplifier channels with greater than 400MHz large-signal bandwidth (4VPP). Gain accuracy and switching glitch are improved over earlier solutions using a new (patented) input stage switching approach. This technique uses current steering as the input switch while maintaining an overall closed-loop design. Gain matching between each of the 3-channel pairs is also significantly improved using this technique (<0.2% gain mismatch). With greater than 700MHz small-signal bandwidth at a gain of 2, the OPA3875 gives a typical 0.1dB gain flatness to greater than 150MHz.

System power may be reduced using the chip enable feature for the OPA3875. Taking the chip enable line high powers down the OPA3875 to less than 900µA total supply current. Muxing multiple OPA3875 outputs together, then using the chip enable to select which channels are active, increases the number of possible inputs to the 3-channel outputs.

Where a single channel of the OPA3875 is required, consider the OPA875.

Features

  • 700MHz SMALL-SIGNAL BANDWIDTH
    (AV = +2)
  • 425MHz, 4VPP BANDWIDTH
  • 0.1dB GAIN FLATNESS to 150MHz
  • 4ns CHANNEL SWITCHING TIME
  • LOW SWITCHING GLITCH: 40mVPP
  • 3100V/µs SLEW RATE
  • 0.025%/0.025° DIFFERENTIAL GAIN, PHASE
  • HIGH GAIN ACCURACY: 2.0V/V ±0.4%
  • APPLICATIONS
    • RGB SWITCHING
    • LCD PROJECTOR INPUT SELECT
    • WORKSTATION GRAPHICS
    • TRIPLE ADC INPUT MUX
    • DROP-IN UPGRADE TO LT1675

All other trademarks are the property of their respective owners.

Parametrics

Compare all products in High-speed op amps (GBW>=50MHz) Email Download to Excel
Part number Order Architecture Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) BW @ Acl (MHz) Acl, min spec gain (V/V) Slew rate (Typ) (V/us) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (Max) (mV) Rail-to-rail Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) Offset drift (Typ) (uV/C) Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz
OPA3875 Order now Fixed Gain/Buffer     2     -5     5     700     2     3100     6.7     10     33     5     No     Integrated Multiplexer     Catalog     -40 to 85     SSOP | 16     16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)     5000000     50     70     67     82     10    
OPA875 Order now Fixed Gain/Buffer     2     -5     5     700     2     3100     6.7     10     11       No     Integrated Multiplexer     Catalog     -40 to 85     SOIC | 8
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
41000000       70     66     87     10