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

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

**Order Information**
Part Number	Package	Temp	Price(1-99)	Price (1k)*
LT1993CUD-4#PBF	3x3 QFN-16	C	$4.20	$2.95
LT1993CUD-4#TRPBF	3x3 QFN-16	C		$3.01
LT1993IUD-4#PBF	3x3 QFN-16	I	$4.65	$3.40
LT1993IUD-4#TRPBF	3x3 QFN-16	I		$3.46

Demo Boards


Part Number	Description	Price
DC800A-B	LT1993CUD-4 900MHz diff In/Out ADC Driver	$50.00
DC900A-02U	Combo Demoboard for LTC2255 and LT1993-4 (12dB) Req DC718	Contact Factory

**Companion Boards**
Part Number	Description	Price
DC718C	USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)	$300.00