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LTC2248IUH#TRPBF

Description
14 位模数转换器 1 输入 1 管线 32-QFN(5x5)
Categorysemiconductor    ADC/DAC - professional data collection   
File Size776KB,24 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC2248IUH#TRPBF Overview

14 位模数转换器 1 输入 1 管线 32-QFN(5x5)

LTC2248IUH#TRPBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackageTape and Reel (TR)
Number of digits14
Sample rate (per second)65M
Number of inputs1
input typeDifferential, single-ended
Data interfacein parallel
ConfigurationS/H-ADC
Ratio - S/H:ADC1:1
Architecturepipeline
Reference typeoutside, inside
Voltage - Power Supply, Analog2.7V ~ 3.4V
Voltage - Power Supply, Digital2.7V ~ 3.4V
characteristic-
Operating temperature-40°C ~ 85°C
Package/casing32-WFQFN Exposed Pad
Supplier device packaging32-QFN(5x5)
Installation typesurface mount type
Number of A/D converters1
Basic product numberLTC2248
LTC2248/LTC2247/LTC2246
14-Bit, 65/40/25Msps
Low Power 3V ADCs
FEATURES
DESCRIPTIO
Sample Rate: 65Msps/40Msps/25Msps
Single 3V Supply (2.7V to 3.4V)
Low Power: 205mW/120mW/75mW
74.3dB SNR
90dB SFDR
No Missing Codes
Flexible Input: 1V
P-P
to 2V
P-P
Range
575MHz 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
®
2248/LTC2247/LTC2246 are 14-bit 65Msps/
40Msps/25Msps, low power 3V A/D converters designed
for digitizing high frequency, wide dynamic range signals.
The LTC2248/LTC2247/LTC2246 are perfect for demand-
ing imaging and communications applications with AC
performance that includes 74.3dB SNR and 90dB 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 1LSB
RMS
.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
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.
, LTC and LT 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
+
ANALOG
INPUT
INPUT
S/H
SNR (dBFS)
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
OUTPUT
DRIVERS
D13
D0
OGND
CLOCK/DUTY
CYCLE
CONTROL
2249 TA01a
CLK
U
LTC2248: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
75
74
73
72
71
70
0
100
50
150
INPUT FREQUENCY (MHZ)
200
2249 TAO1b
U
U
224876fa
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