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LT1993CUD-4#TRPBF

Description
SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP T/R
File Size651KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1993CUD-4#TRPBF Overview

SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP T/R

LT1993CUD-4#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.33.00.01
TypeDifferential Amplifier
Number of Elements per Chip3
Number of Channels per Chip1
Maximum Voltage Gain Range (dB)<35
Maximum Voltage Gain (dB)0.827
Minimum CMRR Range (dB)<60
Minimum CMRR (dB)45
Minimum PSRR (dB)55
Output TypeDifferential
Typical Output Current (mA)45@5V@0C to 70C
Maximum Input Offset Voltage (mV)6.5@5V
Maximum Operating Supply Voltage (V)5.5
Maximum Supply Voltage Range (V)5 to 7
Minimum Single Supply Voltage (V)4
Typical Single Supply Voltage (V)5
Maximum Single Supply Voltage (V)5.5
Maximum Input Bias Current (uA)15@5V@0C to 70C
Maximum Supply Current (mA)112@5V@0C to 70C
Maximum Input Resistance (MOhm)3(Typ)@5V@0C to 70C
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeCommercial
PackagingTape and Reel
Power Supply TypeSingle
Pin Count16
Standard Package NameQFN
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed16
Lead ShapeNo Lead
FEATURES
LT1993-4
900MHz Low Distortion, Low
Noise Differential Amplifier/
ADC Driver (A
V
= 4V/V)
DESCRIPTIO
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. Exception-
ally 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 V
OCM
pin, eliminating either an output transformer
or AC-coupling capacitors in many applications.
The LT1993-4 is designed to meet the demanding require-
ments of communications transceiver applications. It can
be used as a differential ADC driver, a general-purpose
differential gain block, or in any other application requir-
ing 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.
4-Tone WCDMA Waveform,
LT1993-4 Driving LTC2255
14-Bit ADC at 92.16Msps
0
–10
32768 POINT FFT
TONE CENTER FREQUENCIES
AT 62.5MHz, 67.5MHz,
72.5MHz, 77.5MHz
900MHz –3dB Bandwidth
Fixed Gain of 4V/V (12dB)
Low Distortion:
40dBm OIP3, –73dBc HD3 (70MHz 2V
P-P
)
51dBm OIP3, –94dBc HD3 (10MHz 2V
P-P
)
Low Noise: 14.5dB NF, e
n
= 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
APPLICATIO S
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
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
1:1
Z-RATIO
ADC Driver with Single-Ended to Differential Conversion
0.1µF
–OUT
82nH
AMPLITUDE (dBFS)
–INB
–INA
12.2Ω
AIN–
52.3pF
LTC2255
ADC
AIN+
12.2Ω
LTC2255 125Msps
14-BIT ADC SAMPLING
AT 92.16Msps
19934 TA01
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
70MHz
IF IN
100Ω
MA/COM
ETC1-1-13
0.1µF
–OUTFILTERED
LT1993-4
+OUTFILTERED
+INB
+OUT
+INA
V
OCM
ENABLE
2.2V
12dB GAIN
U
U
U
5
10
15 20 25 30 35
FREQUENCY (MHz)
40
45
LT19934 TA02
19934fa
1

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Description SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP T/R SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP Tube SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP Tube SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active
HTS 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01
Type Differential Amplifier Differential Amplifier Differential Amplifier Differential Amplifier
Number of Elements per Chip 3 3 3 3
Number of Channels per Chip 1 1 1 1
Maximum Voltage Gain Range (dB) <35 <35 <35 <35
Maximum Voltage Gain (dB) 0.827 0.827 0.827 0.827
Minimum CMRR Range (dB) <60 <60 <60 <60
Minimum CMRR (dB) 45 45 45 45
Minimum PSRR (dB) 55 55 55 55
Output Type Differential Differential Differential Differential
Typical Output Current (mA) 45@5V@0C to 70C 45@5V@0C to 70C 45@5V@-40C to 85C 45@5V@-40C to 85C
Maximum Input Offset Voltage (mV) 6.5@5V 6.5@5V 6.5@5V 6.5@5V
Maximum Operating Supply Voltage (V) 5.5 5.5 5.5 5.5
Maximum Supply Voltage Range (V) 5 to 7 5 to 7 5 to 7 5 to 7
Minimum Single Supply Voltage (V) 4 4 4 4
Typical Single Supply Voltage (V) 5 5 5 5
Maximum Single Supply Voltage (V) 5.5 5.5 5.5 5.5
Maximum Input Bias Current (uA) 15@5V@0C to 70C 15@5V@0C to 70C 15@5V@-40C to 85C 15@5V@-40C to 85C
Maximum Supply Current (mA) 112@5V@0C to 70C 112@5V@0C to 70C 112@5V@-40C to 85C 112@5V@-40C to 85C
Maximum Input Resistance (MOhm) 3(Typ)@5V@0C to 70C 3(Typ)@5V@0C to 70C 3(Typ)@5V@-40C to 85C 3(Typ)@5V@-40C to 85C
Minimum Operating Temperature (°C) -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85
Supplier Temperature Grade Commercial Commercial Industrial Industrial
Packaging Tape and Reel Tube Tube Tape and Reel
Power Supply Type Single Single Single Single
Pin Count 16 16 16 16
Standard Package Name QFN QFN QFN QFN
Supplier Package QFN EP QFN EP QFN EP QFN EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max)
Package Length 3 3 3 3
Package Width 3 3 3 3
PCB changed 16 16 16 16
Lead Shape No Lead No Lead No Lead No Lead
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