LTC1744IFW#TRPBF datasheet, PDF

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LTC1744IFW#TRPBF: Description1-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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LTC1744IFW#TRPBF Overview

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

LTC1744IFW#TRPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	3A991.c.3
Part Status	Active
HTS	8542.39.00.01
Converter Type	General Purpose
Architecture	Pipelined
Resolution	14bit
Number of ADCs	1
Number of Input Channels	1
Sampling Rate	50Msps
Digital Interface Type	Parallel
Input Type	Voltage
Input Signal Type	Differential\|Single-Ended
Voltage Reference	External\|Internal
Polarity of Input Voltage	Bipolar
Voltage Supply Source	Single
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 Error	3%FSR
Signal to Noise Ratio	77dB(Typ)
No Missing Codes (bit)	14
Sample and Hold	Yes
Single-Ended Input	Yes
Digital Supply Support	No
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Packaging	Tape and Reel
Supplier Temperature Grade	Industrial
Supplier Package	TSSOP
Pin Count	48
Standard Package Name	SOP
Mounting	Surface Mount
Package Height	0.95(Max)
Package Length	12.6(Max)
Package Width	6.2(Max)
PCB changed	48
Lead Shape	Gull-wing

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LTC1744

14-Bit, 50Msps ADC

FEATURES

DESCRIPTIO

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

±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

Telecommunications

Receivers

Base Stations

Spectrum Analysis

Imaging Systems

, LTC and LT are registered trademarks of Linear Technology Corporation.

BLOCK DIAGRA

IN+

±1V

DIFFERENTIAL

ANALOG INPUT

50Msps, 14-Bit ADC with a

±1V

Differential Input Range

0.1µF

CORRECTION

LOGIC AND

SHIFT

D13

CLKOUT

0.5V TO 5V

0.1µF

IN–

S/H

CIRCUIT

14-BIT

PIPELINED ADC

SENSE

BUFFER

RANGE

SELECT

DIFF AMP

GND

CONTROL LOGIC

1744 BD

4.7µF

2.5V

REF

REFLB

REFHA

4.7µF

REFLA

REFHB ENC

ENC

0.1µF

1µF

0.1µF

1µF

DIFFERENTIAL

ENCODE INPUT

OUTPUT

LATCHES

•

OGND

1µF

MSBINV

1744f

LTC1744IFW#TRPBF Related Products

	LTC1744IFW#TRPBF	LTC1744CFW#PBF	LTC1744CFW#TRPBF	LTC1744IFW#PBF
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 T/R	1-Channel Single ADC Pipelined 50Msps 14-bit Parallel 48-Pin TSSOP Tube
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	Differential\|Single-Ended	Single-Ended\|Differential
Voltage Reference	External\|Internal	Internal\|External	External\|Internal	Internal\|External
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)	85	70	70	85
Packaging	Tape and Reel	Tube	Tape and Reel	Tube
Supplier Temperature Grade	Industrial	Commercial	Commercial	Industrial
Supplier Package	TSSOP	TSSOP	TSSOP	TSSOP
Pin Count	48	48	48	48
Standard Package Name	SOP	SOP	SOP	SOP
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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