LT1993-4 900MHz 低失真、低噪声差分放大器/ADC 驱动器（AV = 4V/V）

The LT®1993-4 is a low distortion, low noise Differential Amplifier/ADC driver for use in applications from DC to 900MHz. The LT1993-4 has been designed for ease of use, with minimal support circuitry required. Exceptionally low input-referred noise and low distortion products (with either single-ended or differential inputs) make the LT1993-4 an excellent solution for driving high speed 12-bit and 14-bit ADCs. In addition to the normal unfiltered outputs (+OUT and -OUT), the LT1993-4 has a built-in 175MHz differential lowpass filter and an additional pair of filtered outputs (+OUTFILTERED, -OUTFILTERED) to reduce external filtering components when driving high speed ADCs. The output common mode voltage is easily set via the VOCM pin, eliminating either an output transformer or AC-coupling capacitors in many applications.

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

产品特点 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

封装

应用

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

典型应用图

参数

LT1993-4 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT1993CUD-10	QFN	16	C	$4.20	$2.95
LT1993CUD-10#PBF	QFN	16	C	$4.20	$2.95
LT1993CUD-10#TR	QFN	16	C		$3.01
LT1993CUD-10#TRPBF	QFN	16	C		$3.01
LT1993CUD-2	QFN	16	C	$4.20	$2.95
LT1993CUD-2#PBF	QFN	16	C	$4.20	$2.95
LT1993CUD-2#TR	QFN	16	C		$3.01
LT1993CUD-2#TRPBF	QFN	16	C		$3.01
LT1993CUD-4	QFN	16	C	$4.20	$2.95
LT1993CUD-4#PBF	QFN	16	C	$4.20	$2.95
LT1993CUD-4#TR	QFN	16	C		$3.01
LT1993CUD-4#TRPBF	QFN	16	C		$3.01
LT1993IUD-10	QFN	16	I	$4.65	$3.40
LT1993IUD-10#PBF	QFN	16	I	$4.65	$3.40
LT1993IUD-10#TR	QFN	16	I		$3.46
LT1993IUD-10#TRPBF	QFN	16	I		$3.46
LT1993IUD-2	QFN	16	I	$4.65	$3.40
LT1993IUD-2#PBF	QFN	16	I	$4.65	$3.40
LT1993IUD-2#TR	QFN	16	I		$3.46
LT1993IUD-2#TRPBF	QFN	16	I		$3.46
LT1993IUD-4	QFN	16	I	$4.65	$3.40
LT1993IUD-4#PBF	QFN	16	I	$4.65	$3.40
LT1993IUD-4#TR	QFN	16	I		$3.46
LT1993IUD-4#TRPBF	QFN	16	I		$3.46

LT1993-4 数据手册及相关资料下载

数据手册(英文) : LT1993-4 - 900MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 4V/V).PDF
设计要点 (中文) : DN366 - 低失真、低噪声差分放大器驱动在苛刻通信收发器中的高速 ADC.PDF
设计要点 (英文) : DN366 - Low Distortion, Low Noise Differential Amplifier Drives High Speed ADCs in Demanding Communications Transceivers.PDF
可靠性数据 : R512 Reliability Data .