AD8352 2 GHz Ultralow Distortion Differential RF/IF Amplifier

Unlike other wideband differential amplifiers, the AD8352 has buffers that isolate the gain setting resistor (RG) from the signal inputs. As a result, the AD8352 maintains a constant 3 kΩ input resistance for gains of 3 dB to 25 dB, easing matching and input drive requirements. The AD8352 has a nominal 100 Ω differential output resistance. The device is optimized for wideband, low distortion performance at frequencies beyond 500 MHz. These attributes, together with its wide gain adjust capability, make this device the amplifier of choice for general-purpose IF and broadband applications where low distortion, noise, and power are critical. It is ideally suited for driving not only ADCs, but also mixers, pin diode attenuators, SAW filters, and multi-element discrete devices. The device is available in a compact 3 mm × 3 mm, 16-lead LFCSP and operates over a temperature range of −40°C to +85°C. Applications Differential ADC drivers Single-ended-to-differential conversion RF/IF gain blocks SAW filter interfacing

The AD8352 is a high performance differential amplifier optimized for RF and IF applications. It achieves better than 80 dB SFDR performance at frequencies up to 200 MHz, and 65 dB beyond 500 MHz, making it an ideal driver for high speed 12-bit to 16-bit analog-to-digital converters (ADCs).

The device is optimized for wideband, low distortion performance at frequencies beyond 500 MHz. These attributes, together with its wide gain adjust capability, make this device the amplifier of choice for general-purpose IF and broadband applications where low distortion, noise, and power are critical. It is ideally suited for driving not only ADCs, but also mixers, pin diode attenuators, SAW filters, and multi-element discrete devices. The device is available in a compact 3 mm × 3 mm, 16-lead LFCSP and operates over a temperature range of −40°C to +85°C.

Applications

Features and Benefits

−3 dB bandwidth of 2.2 GHz (AV = 10 dB)
Single resistor gain adjust: 3 dB < AV < 25 dB
Single resistor and capacitor distortion adjust
Input resistance: 3 kΩ, independent of gain (AV)
Differential or single-ended input to differential output
Low noise input stage: 2.7 nV/√Hz RTI @ AV = 10 dB

Low broadband distortion:
10 MHz: −86 dBc HD2, −82 dBc HD3
70 MHz: −84 dBc HD2, −82 dBc HD3
190 MHz: −81 dBc HD2, −87 dBc HD3
OIP3 of 41 dBm @ 150 MHz
Slew rate: 8 V/ns
Fast settling and overdrive recovery of 2 ns
See data sheet for additional Features

RF & Microwave

Amplifiers

Aerospace and Defense

Solutions

Data Sheets

Document	note
AD8352: 2 GHz Ultralow Distortion Differential RF/IF Amplifier Data Sheet (Rev. B)	PDF 1233 kB

Application Notes

Document	note
AN-1026: High Speed Differential ADC Driver Design Considerations (Rev. A)	PDF 355 kB
AN-1098: Methodology for Narrow-Band Interface Design Between High Performance Differential Driver Amplifiers and ADCs (Rev. 0)	PDF 167 kB

Frequently Asked Questions

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Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8352ACPZ-R2 Production	16 ld LFCSP (3x3mm, 1.50mm exposed pad)	REEL 250	-40 to 85C	0	0	Y
AD8352ACPZ-R7 Production	16 ld LFCSP (3x3mm, 1.50mm exposed pad)	REEL 1500	-40 to 85C	0	3.53	Y
AD8352ACPZ-WP Production	16 ld LFCSP (3x3mm, 1.50mm exposed pad)	REEL 50	-40 to 85C	3.96	3.53	Y