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LTC2254CUH#PBF

Description
1-Channel Single ADC Pipelined 105Msps 14-bit Parallel 32-Pin QFN EP Tube
File Size517KB,24 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC2254CUH#PBF Overview

1-Channel Single ADC Pipelined 105Msps 14-bit Parallel 32-Pin QFN EP Tube

LTC2254CUH#PBF 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 Rate105Msps
Digital Interface TypeParallel
Input TypeVoltage
Input Signal TypeSingle-Ended|Differential
Voltage ReferenceInternal|External
Polarity of Input VoltageBipolar
Voltage Supply SourceSingle
Input Voltage±0.5V/±1V
Minimum Single Supply Voltage (V)2.85
Typical Single Supply Voltage (V)3
Maximum Single Supply Voltage (V)3.4
Typical Power Dissipation (mW)320
Maximum Power Dissipation (mW)378
Integral Nonlinearity Error±5.5LSB
Full Scale Error±2.5%FSR
Signal to Noise Ratio72.5dB(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
PackagingTube
Supplier Temperature GradeCommercial
Pin Count32
Standard Package NameQFN
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length5
Package Width5
PCB changed32
Lead ShapeNo Lead
LTC2255/LTC2254
14-Bit, 125/105Msps
Low Power 3V ADCs
FEATURES
DESCRIPTIO
Sample Rate: 125Msps/105Msps
Single 3V Supply (2.85V to 3.4V)
Low Power: 395mW/320mW
72.4dB SNR
88dB SFDR
No Missing Codes
Flexible Input: 1V
P-P
to 2V
P-P
Range
640MHz Full Power Bandwidth S/H
Clock Duty Cycle Stabilizer
Shutdown and Nap Modes
Pin Compatible Family
125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit)
105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit)
80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)
65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)
40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)
25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)
10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)
32-Pin (5mm
×
5mm) QFN Package
The LTC
®
2255/LTC2254 are 14-bit 125Msps/105Msps,
low power 3V A/D converters designed for digitizing high
frequency, wide dynamic range signals. The LTC2255/
LTC2254 are perfect for demanding imaging and commu-
nications applications with AC performance that includes
72.3dB SNR and 85dB SFDR for signals at the Nyquist
frequency.
DC specs include
±1LSB
INL (typ),
±0.5LSB
DNL (typ) and
no missing codes over temperature. The transition noise
is a low 1.3 LSB
RMS
.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.3V
logic.
A single-ended CLK input controls converter operation. An
optional clock duty cycle stabilizer allows high perfor-
mance at full speed for a wide range of clock duty cycles.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Wireless and Wired Broadband Communication
Imaging Systems
Ultrasound
Spectral Analysis
Portable Instrumentation
TYPICAL APPLICATIO
REFH
REFL
FLEXIBLE
REFERENCE
OV
DD
SNR (dBFS)
+
ANALOG
INPUT
INPUT
S/H
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
OUTPUT
DRIVERS
D13
D0
OGND
CLOCK/DUTY
CYCLE
CONTROL
22554 TA01a
CLK
22554fa
U
LTC2255: SNR vs Input Frequency,
–1dB, 2V Range, 125Msps
75
74
73
72
71
70
69
68
67
66
65
0
50
100 150 200 250 300 350
33554 G09
INPUT FREQUENCY (MHz)
U
U
1
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