Description

The AD8146/AD8147/AD8148 is a family of high-speed triple differential or single-ended input to differential output drivers, specifically designed for the highest resolution component video signals. The AD8146 and AD8147 have a fixed gain of 2, and the AD8148 has a fixed gain of 4.

Specifications and features

• Triple high-speed fully differential driver
• 700 MHz, −3 dB, 2 V p-p bandwidth (AD8146/AD8148), 600 MHz, −3dB, 2 V p-p bandwidth (AD8147)
• 200 MHz, 0.1 dB, 2 V p-p bandwidth
• 3000 V/μs slew rate
• Fixed gain (AD8146/AD8147: G = 2, AD8148: G = 4)
• Differential or single-ended input to differential output
• Can be used as differential-to-differential receiver
• Drives one or two 100 Ω UTP cables
• Adjustable output common-mode voltage (AD8146)
• Internal common-mode feedback network
• Output balance error −50 dB @ 50 MHz
• On-chip, sync-on common-mode encoding (AD8147/AD8148)
• Output pull-down feature for line isolation
• Low power: 57 mA @ 5 V for 3 drivers (AD8146)
• Wide supply voltage range: +5 V to ±5 V
• Available in a small 4 mm × 4 mm LFCSP

Application Scenarios

The AD8146/AD8147/AD8148 can be used for any type of analog signals or high-speed data transmission over either Category 5 UTP cable or differential printed circuit board (PCB) transmission lines. Their applications include QXGA or 1080p video transmission, KVM networking, video over unshielded twisted pair (UTP), and differential signal multiplexing.

Comparison

• Triple high-speed fully differential driver
• High bandwidth and slew rate
• Fixed gain for stable performance
• Can be used as differential-to-differential receiver
• Designed for high resolution component video signals
• Low power consumption
• Adjustable output common-mode voltage (AD8146)
• Output balance error −50 dB @ 50 MHz
• On-chip, sync-on common-mode encoding (AD8147/AD8148)
• Output pull-down feature for line isolation
• Wide supply voltage range
• Available in a small package

• None identified