Datasheet ADL5561 (Analog Devices)

2.9 GHz Ultralow Distortion RF/IF Differential Amplifier Data Sheet ADL5561 FEATURES FUNCTIONAL BLOCK DIAGRAM −3 dB bandwidth of 2.9 GHz (A VCC V = 6 dB) Low supply current: 40 mA RF Pin-strappable gain adjust: 6 dB, 12 dB, 15.5 dB ENBL Differential or single-ended input to differential output RG2 VON Low noise input stage: 2.1 nV/√Hz RTI at A VIP2 V = 12 dB Low broadband distortion (A R V = 6 dB) G1 VIP1 VCOM 10 MHz: −94 dBc HD2, −87 dBc HD3 RG1 70 MHz: −98 dBc HD2, −87 dBc HD3 VIN1 140 MHz: −95 dBc HD2, −87 dBc HD3 RG2 VIN2 VOP 250 MHz: −80 dBc HD2, −73 dBc HD3 IMD3s of −86 dBc at 250 MHz center GND RF Slew rate: 9.8 V/ns ADL5561
001
Fast settling of 2 ns and overdrive recovery of 3 ns GND
08004-
Single-supply operation: 3 V to 3.6 V
Figure 1.
Power-down control Fabricated using the high speed XFCB3 SiGe process APPLICATIONS Differential ADC drivers Single-ended-to-differential conversion RF/IF gain blocks SAW filter interfacing GENERAL DESCRIPTION
The ADL5561 is a high performance differential amplifier The device is optimized for wideband, low distortion performance. optimized for RF and IF applications. The amplifier offers low These attributes, together with its adjustable gain capability, noise of 2.1 nV/√Hz and excel ent distortion performance over make this device the amplifier of choice for general-purpose IF a wide frequency range, making it an ideal driver for high speed and broadband applications where low distortion, noise, and power 8-bit to 16-bit analog-to-digital converters (ADCs). are critical. This device is optimized for the best combination of The ADL5561 provides three gain levels of 6 dB, 12 dB, and 15.5 dB slew speed, bandwidth, and broadband distortion. These attributes through a pin-strappable configuration. For the single-ended al ow it to drive a wide variety of ADCs and make it ideally suited input configuration, the gains are reduced to 5.6 dB, 11.1 dB, and for driving mixers, pin diode attenuators, SAW filters, and multi- 14.1 dB. Using an external series input resistor expands the element discrete devices. amplifier gain flexibility and allows for any gain selection from Fabricated on the Analog Devices, Inc., high speed SiGe process, 0 dB to 15.5 dB. the ADL5561 is supplied in a compact 3 mm × 3 mm, 16-lead The quiescent current of the ADL5561 is typically 40 mA and, LFCSP package and operates over the temperature range of when disabled, consumes less than 3 mA, offering excellent −40°C to +85°C. input-to-output isolation.
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT DESCRIPTION BASIC STRUCTURE APPLICATIONS INFORMATION BASIC CONNECTIONS INPUT AND OUTPUT INTERFACING Single-Ended Input to Differential Output GAIN ADJUSTMENT AND INTERFACING ADC INTERFACING LAYOUT CONSIDERATIONS SOLDERING INFORMATION EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE