LT1993-4 - 900MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 4V/V)

The LT1993-4 is designed to meet the demanding requirements of communications transceiver applications. It can be used as a differential ADC driver, a general-purpose differential gain block, or in any other application requiring differential drive. The LT1993-4 can be used in data acquisition systems required to function at frequencies down to DC.

The LT1993-4 operates on a 5V supply and consumes 100mA. It comes in a compact 16-lead 3 × 3 QFN package and operates over a -40°C to 85°C temperature range.

Features
  • 900MHz -3dB Bandwidth
  • Fixed Gain of 4V/V (12dB)
  • Low Distortion: 40dBm OIP3, -73dBc HD3 (70MHz 2VP-P) 51dBm OIP3, -94dBc HD3 (10MHz 2VP-P)
  • Low Noise: 14.5dB NF, en = 2.35nV/√Hz (70MHz)
  • Differential Inputs and Outputs
  • Additional Filtered Outputs
  • Adjustable Output Common Mode Voltage
  • DC- or AC-Coupled Operation
  • Minimal Support Circuitry Required
  • Small 0.75mm Tall 16-Lead 3 × 3 QFN Package
Typical Application
LT1993-4 Typical Application
LT1993-4 Typical Application
Applications
  • Differential ADC Driver for: Imaging Communications
  • Differential Driver/Receiver
  • Single Ended to Differential Conversion
  • Differential to Single Ended Conversion
  • Level Shifting
  • IF Sampling Receivers
  • SAW Filter Interfacing/Buffering
Packaging
LT1993-4 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1993CUD-4#PBF3x3 QFN-16C$4.20$2.95
LT1993CUD-4#TRPBF3x3 QFN-16C$3.01
LT1993IUD-4#PBF3x3 QFN-16I$4.65$3.40
LT1993IUD-4#TRPBF3x3 QFN-16I$3.46
Demo Boards
Part NumberDescriptionPrice
DC800A-BLT1993CUD-4 900MHz diff In/Out ADC Driver$50.00
DC900A-02UCombo Demoboard for LTC2255 and LT1993-4 (12dB) Req DC718Contact Factory
Companion Boards
Part NumberDescriptionPrice
DC718CUSB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)$300.00
Datasheet
Reliability Data
Product Selector Card
CAD Symbol
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LT1993-4 - 900MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 4V/V)
R512 Reliability Data
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LT1993-4 Footprints and Symbols