LT1993-2 - 800MHz Low Distortion, Low Noise Differential Amplifier ADC Driver (Av = 2V/V)

The LT1993-2 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 LT1993-2 can be used in data acquisition systems required to function at frequencies down to DC.

The LT1993-2 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

800MHz –3dB Bandwidth
Fixed Gain of 2V/V (6dB)
Low Distortion:
38dBm OIP3, –70dBc HD3 (70MHz, 2VP-P)
51dBm OIP3, –94dBc HD3 (10MHz, 2VP-P)
Low Noise: 12.3dB NF, en = 3.8nV/√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-2#PBF	3x3 QFN-16	C	$4.20	$2.95
LT1993CUD-2#TRPBF	3x3 QFN-16	C		$3.01
LT1993IUD-2#PBF	3x3 QFN-16	I	$4.65	$3.40
LT1993IUD-2#TRPBF	3x3 QFN-16	I		$3.46

Demo Boards


Part Number	Description	Price
DC800A-A	LT1993CUD-2 800MHz diff in/out ADC driver	$50.00
DC900A-01E	Combo Demoboard for LTC2249 and LT1993-2 (6dB) Req DC718	Contact Factory
DC900A-01U	Combo Demoboard for LTC2254 and LT1993-2 (6dB) Req DC718	Contact Factory
DC900A-01V	Combo Demoboard for LTC2255 and LT1993-2 (6dB) Req DC718	Contact Factory

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