ADA4930-1-EP Datasheet

• Low input voltage noise: 1.2 nV/√Hz 
• Low common-mode output: 0.9 V on single supply
• Extremely low harmonic distortion
  • HD2/HD3: -104/−101 dBc at 10 MHz 
  • HD2/HD3: −79/-82 dBc at 70 MHz 
  • HD2/HD3: −73/-75 dBc at 100 MHz 
• High speed
  • −3 dB bandwidth of 1.35 GHz, G = 1 
  • Slew rate: 3400 V/μs 
  • 0.1 dB gain flatness to 380 MHz 
  • Fast overdrive recovery of 1.5 ns
• Offset voltage: 0.5 mV typical 
• Externally adjustable gain
• Differential-to-differential or single-ended-to-differential operation
• Adjustable output common-mode voltage 
• Single-supply operation: 3.3 V or 5 V

ENHANCED PRODUCT FEATURES

• Supports defense and aerospace applications (AQEC standard)
• Extended temperature range: −55°C to +105°C
• Controlled manufacturing baseline
• One assembly/test site
• One fabrication site
• Enhanced product change notification
• Qualification data available on request

• ADC drivers 
• Single-ended-to-differential converters 
• IF and baseband gain blocks 
• Differential buffers 
• Line drivers

The ADA4930-1-EP is a very low noise, low distortion, high speed differential amplifier. It is an ideal choice for driving 1.8 V high performance ADCs with resolutions up to 14 bits from dc to 70 MHz. The adjustable output common-mode voltage setting allows the ADA4930-1-EP to match the input of the ADC for maximum dynamic range. The internal common-mode feedback loop provides exceptional output balance, suppression of evenorder harmonic distortion products, and dc level translation.

With the ADA4930-1-EP, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier.

The ADA4930-1-EP is fabricated using Analog Devices, Inc., proprietary silicon-germanium (SiGe), complementary bipolar process, enabling it to achieve very low levels of distortion with an input voltage noise of only 1.2 nV/√Hz.

The low dc offset and excellent dynamic performance of the ADA4930-1-EP make it well suited for a wide variety of data acquisition and signal processing applications.

The ADA4930-1-EP is available in a 3 mm × 3 mm 16-lead LFCSP. The pinout has been optimized to facilitate printed circuit board (PCB) layout and minimize distortion. The ADA4930-1-EP is specified to operate over the −55°C to +105°C temperature range for 3.3 V or 5 V supply voltages.

Additional application and technical information can be found in the ADA4930-1/ADA4930-2 data sheet.