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LTC1273BCSW#PBF

Description
1-Channel Single ADC SAR 300ksps 12-bit Parallel 24-Pin SOIC W Tube
File Size296KB,24 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1273BCSW#PBF Overview

1-Channel Single ADC SAR 300ksps 12-bit Parallel 24-Pin SOIC W Tube

LTC1273BCSW#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitectureSAR
Resolution12bit
Number of ADCs1
Number of Input Channels1
Sampling Rate300ksps
Digital Interface TypeParallel
Input TypeVoltage
Input Signal TypeSingle-Ended
Voltage ReferenceInternal
Polarity of Input VoltageUnipolar
Voltage Supply SourceSingle
Input Voltage5V
Minimum Single Supply Voltage (V)4.95
Typical Single Supply Voltage (V)5
Maximum Single Supply Voltage (V)5.25
Typical Power Dissipation (mW)75
Maximum Power Dissipation (mW)500
Integral Nonlinearity Error±1LSB
Full Scale Error±15LSB
No Missing Codes (bit)12
Sample and HoldYes
Single-Ended InputYes
Digital Supply SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
PackagingTube
Supplier Temperature GradeCommercial
Pin Count24
Standard Package NameSOP
Supplier PackageSOIC W
MountingSurface Mount
Package Height2.34(Max)
Package Length15.6(Max)
Package Width7.6(Max)
PCB changed24
Lead ShapeGull-wing
LTC1273
LTC1275/LTC1276
12-Bit, 300ksps Sampling
A/D Converters with Reference
FEATURES
DESCRIPTIO
Single Supply 5V or
±5V
Operation
300ksps Sample Rate
75mW (Typ) Power Dissipation
On-Chip 25ppm/°C Reference
Internal Synchronized Clock; No Clock Required
High Impedance Analog Input
70dB S/(N + D) and 77dB THD at Nyquist
±1/2LSB
INL and
±3/4LSB
DNL Max (A Grade)
ESD Protected On All Pins
24-Pin Narrow PDIP and SW Packages
Variety of Input Ranges:
0V to 5V (LTC1273)
±2.5V
(LTC1275)
±5V
(LTC1276)
The LTC
®
1273/LTC1275/LTC1276 are 300ksps, sam-
pling 12-bit A/D converters that draw only 75mW from
single 5V or
±5V
supplies. These easy-to-use devices
come complete with 600ns sample-and-holds, precision
references and internally trimmed clocks. Unipolar and
bipolar conversion modes provide flexibility for various
applications. They are built with LTBiCMOS
TM
switched
capacitor technology.
These devices have 25ppm/°C (max) internal references.
The LTC1273 converts 0V to 5V unipolar inputs from a
single 5V supply. The LTC1275/LTC1276 convert
±2.5V
and
±5V
respectively from
±5V
supplies. Maximum DC
specifications include
±1/2LSB
INL,
±3/4LSB
DNL and
25ppm/°C full scale drift over temperature. Outstanding
AC performance includes 70dB S/(N + D) and 77dB THD
at the Nyquist input frequency of 150kHz.
The internal clock is trimmed for 2.7µs maximum conver-
sion time. The clock automatically synchronizes to each
sample command eliminating problems with asynchro-
nous clock noise found in competitive devices. A high
speed parallel interface eases connections to FIFOs, DSPs
and microprocessors.
APPLICATIO S
High Speed Data Acquisition
Digital Signal Processing
Multiplexed Data Acquisition Systems
Audio and Telecom Processing
Spectrum Analysis
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
LTBiCMOS is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
Single 5V Supply, 300ksps, 12-Bit Sampling A/D Converter
LTC1273
1
ANALOG INPUT
V
DD
A
(0V TO 5V) 2
IN
V
REF
NC
3
BUSY
AGND
0.1µF
4
CS
D11
5
RD
D10
6
HBEN
D9
7
NC
D8
8
NC
D7
9
D0/8
D6
10
8- OR 12-BIT
D1/9
D5
PARALLEL BUS
11
D2/10
D4
12
D3/11
DGND
5V
24
23
22
21
20
19
18
17
16
15
14
13
Effective Bits and Signal to (Noise + Distortion)
vs Input Frequency
12
11
0.1µF
2.42V
V
REF
OUTPUT
+
10µF
µP
CONTROL
LINES
+
10µF
10
9
EFFECTIVE BITS
8
7
6
5
4
3
2
1
0
10k
f
SAMPLE
= 300kHz
100k
INPUT FREQUENCY (Hz)
1M
LTC1273/75/76 • TA01
U
74
68
NYQUIST
FREQUENCY
62
56
50
S/(N + D) (dB)
U
U
2M
LTC1273/75/76 • TA02
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