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LTC1744CFW#TRPBF

Description
1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP T/R
File Size536KB,24 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC1744CFW#TRPBF Overview

1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP T/R

LTC1744CFW#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)3A991.c.3
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitecturePipelined
Resolution14bit
Number of ADCs1
Number of Input Channels1
Sampling Rate50Msps
Digital Interface TypeParallel
Input TypeVoltage
Input Signal TypeDifferential|Single-Ended
Voltage ReferenceExternal|Internal
Polarity of Input VoltageBipolar
Voltage Supply SourceSingle
Input Voltage±1V/±1.6V
Minimum Single Supply Voltage (V)4.75
Typical Single Supply Voltage (V)5
Maximum Single Supply Voltage (V)5.25
Typical Power Dissipation (mW)1200
Maximum Power Dissipation (mW)1500
Integral Nonlinearity Error±4LSB
Full Scale Error3%FSR
Signal to Noise Ratio77dB(Typ)
No Missing Codes (bit)14
Sample and HoldYes
Single-Ended InputYes
Digital Supply SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
PackagingTape and Reel
Supplier Temperature GradeCommercial
Pin Count48
Standard Package NameSOP
Supplier PackageTSSOP
MountingSurface Mount
Package Height0.95(Max)
Package Length12.6(Max)
Package Width6.2(Max)
PCB changed48
Lead ShapeGull-wing
LTC1744
14-Bit, 50Msps ADC
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
s
Sample Rate: 50Msps
77dB SNR and 87dB SFDR (3.2V Range)
73.5dB SNR and 90dB SFDR (2V Range)
No Missing Codes
Single 5V Supply
Power Dissipation: 1.2W
Selectable Input Ranges:
±1V
or
±1.6V
150MHz Full Power Bandwidth S/H
Pin Compatible Family
25Msps: LTC1746 (14 Bit), LTC1745 (12 Bit)
50Msps: LTC1744 (14 Bit), LTC1743 (12 Bit)
65Msps: LTC1742 (14 Bit), LTC1741 (12 Bit)
80Msps: LTC1748 (14 Bit), LTC1747 (12 Bit)
48-Pin TSSOP Package
The LTC
®
1744 is a 50Msps, sampling 14-bit A/D con-
verter designed for digitizing high frequency, wide dynamic
range signals. Pin selectable input ranges of
±1V
and
±1.6V
along with a resistor programmable mode allow the
LTC1744’s input range to be optimized for a wide variety
of applications.
The LTC1744 is perfect for demanding communications
applications with AC performance that includes 77dB
SNR and 87dB spurious free dynamic range. Ultralow jitter
of 0.3ps
RMS
allows undersampling of IF frequencies with
excellent noise performance. DC specs include
±4LSB
maximum INL and no missing codes over temperature.
The digital interface is compatible with 5V, 3V and 2V logic
systems. The ENC and ENC inputs may be driven differen-
tially from PECL, GTL and other low swing logic families or
from single-ended TTL or CMOS. The low noise, high gain
ENC and ENC inputs may also be driven by a sinusoidal
signal without degrading performance. A separate output
power supply can be operated from 0.5V to 5V, making it
easy to connect directly to any low voltage DSPs or FIFOs.
The TSSOP package with a flow-through pinout simplifies
the board layout.
APPLICATIO S
s
s
s
s
s
Telecommunications
Receivers
Base Stations
Spectrum Analysis
Imaging Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
A
IN+
±1V
DIFFERENTIAL
ANALOG INPUT
50Msps, 14-Bit ADC with a
±1V
Differential Input Range
OV
DD
0.1µF
CORRECTION
LOGIC AND
SHIFT
REGISTER
14
OF
D13
D0
CLKOUT
0.5V TO 5V
0.1µF
A
IN–
S/H
CIRCUIT
14-BIT
PIPELINED ADC
SENSE
BUFFER
RANGE
SELECT
DIFF AMP
GND
CONTROL LOGIC
1744 BD
V
CM
4.7µF
2.5V
REF
REFLB
REFHA
4.7µF
REFLA
REFHB ENC
ENC
0.1µF
1µF
0.1µF
1µF
DIFFERENTIAL
ENCODE INPUT
U
OUTPUT
LATCHES
OGND
V
DD
1µF
1µF
5V
1µF
MSBINV
OE
W
U
1744f
1

LTC1744CFW#TRPBF Related Products

LTC1744CFW#TRPBF LTC1744CFW#PBF LTC1744IFW#PBF LTC1744IFW#TRPBF
Description 1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP T/R 1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP Tube 1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP Tube 1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) 3A991.c.3 3A991c.3. 3A991.c.3 3A991.c.3
Part Status Active Active Active Active
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Converter Type General Purpose General Purpose General Purpose General Purpose
Architecture Pipelined Pipelined Pipelined Pipelined
Resolution 14bit 14bit 14bit 14bit
Number of ADCs 1 1 1 1
Number of Input Channels 1 1 1 1
Sampling Rate 50Msps 50Msps 50Msps 50Msps
Digital Interface Type Parallel Parallel Parallel Parallel
Input Type Voltage Voltage Voltage Voltage
Input Signal Type Differential|Single-Ended Single-Ended|Differential Single-Ended|Differential Differential|Single-Ended
Voltage Reference External|Internal Internal|External Internal|External External|Internal
Polarity of Input Voltage Bipolar Bipolar Bipolar Bipolar
Voltage Supply Source Single Single Single Single
Input Voltage ±1V/±1.6V ±1V/±1.6V ±1V/±1.6V ±1V/±1.6V
Minimum Single Supply Voltage (V) 4.75 4.75 4.75 4.75
Typical Single Supply Voltage (V) 5 5 5 5
Maximum Single Supply Voltage (V) 5.25 5.25 5.25 5.25
Typical Power Dissipation (mW) 1200 1200 1200 1200
Maximum Power Dissipation (mW) 1500 1500 1500 1500
Integral Nonlinearity Error ±4LSB ±4LSB ±4LSB ±4LSB
Full Scale Error 3%FSR 3%FSR 3%FSR 3%FSR
Signal to Noise Ratio 77dB(Typ) 77dB(Typ) 77dB(Typ) 77dB(Typ)
No Missing Codes (bit) 14 14 14 14
Sample and Hold Yes Yes Yes Yes
Single-Ended Input Yes Yes Yes Yes
Digital Supply Support No No No No
Maximum Operating Temperature (°C) 70 70 85 85
Packaging Tape and Reel Tube Tube Tape and Reel
Supplier Temperature Grade Commercial Commercial Industrial Industrial
Pin Count 48 48 48 48
Standard Package Name SOP SOP SOP SOP
Supplier Package TSSOP TSSOP TSSOP TSSOP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.95(Max) 0.95(Max) 0.95(Max) 0.95(Max)
Package Length 12.6(Max) 12.6(Max) 12.6(Max) 12.6(Max)
Package Width 6.2(Max) 6.2(Max) 6.2(Max) 6.2(Max)
PCB changed 48 48 48 48
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing
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