ADA4856-3 Single-Supply, High Speed, Fixed G = +2, Rail-to-Rail Output Video Amplifier

The ADA4856-3 (triple) is a fixed gain of +2, single-supply, rail-to-rail output video amplifier. It provides excellent video performance with 225 MHz, −3 dB bandwidth, 800 V/μs slew rate, and 74 MHz, 0.1 dB flatness into a 150 Ω load. It has a wide input common-mode voltage range that extends 0.2 V below ground and 1 V below the positive rail. In addition, the output voltage swings within 200 mV of either supply, making this video amplifier easy to use on single-supply voltages as low as 3.3 V. Professional video Consumer video Imaging Instrumentation Base stations Active filters Buffers

The ADA4856-3 offers a typical low power of 7.8 mA per amplifier, while being capable of delivering up to 52 mA of load current. It also features a power-down function for power sensitive applications that reduces the supply current to 1 mA.

The ADA4856-3 is available in a 16-lead LFCSP and is designed to work over the extended industrial temperature range of −40°C to +105°C.

Data Sheet, Rev. A, 01/2009

Features and Benefits

Voltage feedback architecture

High speed amplifier
-3 dB bandwidth: 225 MHz
0.1 dB flatness at 2 V p-p: 74 MHz
Slew rate: 800 V/µs
Settling time to 0.1% with 2 V step: 5 ns

High input common-mode voltage range
-VS − 0.2 V to +VS − 1 V

Rail-to-rail output swing: 0.1 V to 4.9 V

Supply range: 3 V to 5.5 V

Differential gain error: 0.01%

Differential phase error: 0.01°

Low power
7.8 mA/amplifier typical supply current
Power-down feature

Available in 16-lead LFCSP

Amplifiers

Audio & Video Products

Video Amplifiers & Analog Video Functions

Data Sheets

Document	note
ADA4856-3: High Speed, Single-Supply, Fixed G = +2, Rail-to-Rail Output Video Amplifier Data Sheet (Rev. B)	PDF 266 kB

Application Notes

Document	note
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps	PDF 55 kB
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0)	PDF 166 kB
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems	PDF 228 kB

User Guides

Document	note
UG-115: Universal Evaluation Board for Triple, High Speed Op Amps Offered in 16-Lead, 4 mm × 4 mm LFCSP Packages	PDF 171 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADA4856-3YCPZ-R2 Production	16 ld LFCSP (4x4x.85mm, 2.10mm exposed pad)	REEL 250	-40 to 105C	1.89	1.89	Y
ADA4856-3YCPZ-R7 Production	16 ld LFCSP (4x4x.85mm, 2.10mm exposed pad)	REEL 1500	-40 to 105C	0	1.39	Y
ADA4856-3YCPZ-RL Production	16 ld LFCSP (4x4x.85mm, 2.10mm exposed pad)	REEL 5000	-40 to 105C	0	1.39	Y