EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC2440CGN

Description
1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16
CategoryAnalog mixed-signal IC    converter   
File Size305KB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC2440CGN Overview

1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16

LTC2440CGN Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP, SSOP16,.25
Contacts16
Manufacturer packaging codeGN
Reach Compliance Code_compli
ECCN codeEAR99
Maximum analog input voltage2.75 V
Minimum analog input voltage-0.05 V
Maximum conversion time170000 µs
Converter typeADC, DELTA-SIGMA
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length4.8895 mm
Maximum linear error (EL)0.0015%
Humidity sensitivity level1
Number of analog input channels1
Number of digits24
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Output bit codeBINARY
Output formatSERIAL
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
power supply5 V
Certification statusNot Qualified
Sampling rate0.35 MHz
Maximum seat height1.727 mm
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3.899 mm
LTC2440
24-Bit High Speed
Differential
∆Σ
ADC with
Selectable Speed/Resolution
FEATURES
DESCRIPTIO
Up to 3.5kHz Output Rate
Selectable Speed/Resolution
2µV
RMS
Noise at 880Hz Output Rate
200nV
RMS
Noise at 6.9Hz Output Rate with
Simultaneous 50/60Hz Rejection
0.0005% INL, No Missing Codes
Autosleep Enables 20µA Operation at 6.9Hz
< 5µV Offset (4.5V < V
CC
< 5.5V, – 40°C to 85°C)
Differential Input and Differential Reference with
GND to V
CC
Common Mode Range
No Latency, Each Conversion is Accurate Even After
an Input Step
Internal Oscillator—No External Components
Pin Compatible with the LTC2410
24-Bit ADC in Narrow 16-Lead SSOP Package
The LTC
®
2440 is a high speed 24-bit No Latency
∆Σ
TM
ADC
with 5ppm INL and 5µV offset. It uses proprietary delta-
sigma architecture enabling variable speed and resolution
with no latency. Ten speed/resolution combinations (6.9Hz/
200nV
RMS
to 3.5kHz/25µV
RMS
) are programmed through
a simple serial interface. Alternatively, by tying a single pin
HIGH or LOW, a fast (880Hz/2µV
RMS
) or ultralow noise
(6.9Hz, 200nV
RMS
, 50/60Hz rejection) speed/resolution
combination can be easily selected. The accuracy (offset,
full-scale, linearity, drift) and power dissipation are inde-
pendent of the speed selected. Since there is no latency,
a speed/resolution change may be made between conver-
sions with no degradation in performance.
Following each conversion cycle, the LTC2440 automati-
cally enters a low power sleep state. Power dissipation
may be reduced by increasing the duration of this sleep
state. For example, running at the 3.5kHz conversion
speed but reading data at a 100Hz rate draws 240µA
average current (1.1mW) while reading data at a 7Hz
output rate draws only 25µA (125µW).The LTC2440 com-
municates through a flexible 3-wire or 4-wire digital inter-
face that is compatible with the LTC2410 and is available
in a narrow 16-lead SSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
No Latency
∆Σ
is a trademark of Linear Technology Corporation.
APPLICATIO S
High Speed Multiplexing
Weight Scales
Auto Ranging 6-Digit DVMs
Direct Temperature Measurement
High Speed Data Acquisition
TYPICAL APPLICATIO
4.5V TO 5.5V
Simple 24-Bit 2-Speed Acquisition System
100
V
CC
= 5V
V
REF
= 5V
V
IN+
= V
IN–
= 0V
V
CC
BUSY
RMS NOISE (µV)
2
3
REFERENCE VOLTAGE
0.1V TO V
CC
ANALOG INPUT
–0.5V
REF
TO 0.5V
REF
4
5
6
15
10
2µV AT 880Hz
200nV AT 6.9Hz
1 (50/60Hz REJECTION)
1, 8, 9, 16
LTC2440
14
F
O
REF
+
13
REF
SCK
12
IN
+
SDO
11
IN
CS
7
SDI
10
EXT
GND
3-WIRE
SPI INTERFACE
V
CC
6.9Hz, 200nV NOISE,
50/60Hz REJECTION
10-SPEED SERIAL
PROGRAMMABLE
880Hz OUTPUT RATE,
2µV NOISE
0.1
1
10
100
1000
CONVERSION RATE (Hz)
10000
2440 TA02
2440 TA01
2440 TA01
U
Speed vs RMS Noise
sn2440, 2440fas
U
U
1

LTC2440CGN Related Products

LTC2440CGN LTC2440IGN
Description 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16
Brand Name Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible
Maker Linear ( ADI ) Linear ( ADI )
Parts packaging code SSOP SSOP
package instruction SSOP, SSOP16,.25 0.150 INCH, PLASTIC, SSOP-16
Contacts 16 16
Manufacturer packaging code GN GN
Reach Compliance Code _compli _compli
ECCN code EAR99 EAR99
Maximum analog input voltage 2.75 V 2.75 V
Minimum analog input voltage -0.05 V -0.05 V
Maximum conversion time 170000 µs 170000 µs
Converter type ADC, DELTA-SIGMA ADC, DELTA-SIGMA
JESD-30 code R-PDSO-G16 R-PDSO-G16
JESD-609 code e0 e0
length 4.8895 mm 4.8895 mm
Maximum linear error (EL) 0.0015% 0.0015%
Humidity sensitivity level 1 1
Number of analog input channels 1 1
Number of digits 24 24
Number of functions 1 1
Number of terminals 16 16
Maximum operating temperature 70 °C 85 °C
Output bit code BINARY BINARY
Output format SERIAL SERIAL
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP SSOP
Encapsulate equivalent code SSOP16,.25 SSOP16,.25
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235
power supply 5 V 5 V
Certification status Not Qualified Not Qualified
Sampling rate 0.35 MHz 0.35 MHz
Maximum seat height 1.727 mm 1.727 mm
Nominal supply voltage 5 V 5 V
surface mount YES YES
technology CMOS CMOS
Temperature level COMMERCIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.635 mm 0.635 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature 20 20
width 3.899 mm 3.899 mm
Serial port cannot be used under WINCE
Please help me, my serial port 1 is used for debugging in wince, and now I can't use the application in the system. How can I modify the bsp so that my serial port can be called by the application? Th...
sjh008 Embedded System
Suggestions for college students to learn ARM and FPGA (reprint)
[color=#0000ff]"Suggestions for college students to learn ARM and FPGA" Source: Zhou Ligong's blog[/color] For beginners, there are many knowledge points to learn. People often feel very confused abou...
ptwang ARM Technology
Problems with soldering of microcontroller development board
I use ATMEL89C52~~This is the schematic diagram [img]http://p13.freep.cn/p.aspx?u=v20_p13_p_0910310829314162_0.gif[/img]. I don't know which part is used for power supply and burning program. If not, ...
etual1983 Embedded System
Generation and Suppression of Electromagnetic Interference in Switching Power Supplies
Abstract: The prominent disadvantage of switching power supply is that it can generate strong electromagnetic interference (EMI). EMI signal has a wide frequency range and a certain amplitude. After c...
eeleader Energy Infrastructure?
Car intelligent temperature control system based on KW41Z and Android platform
[size=14px][font=微软雅黑][size=4](1) Title of the work: [/size][/font][/size] Intelligent temperature control system for cars based on KW41Z and Android platform [size=14px][font=微软雅黑][size=4](2) Functio...
zwq1489 NXP MCU
Memory tiler mode in video storage (DM8168)
[i=s]This post was last edited by Ternence.Hsu on 2015-6-16 15:37[/i] [align=left][color=rgb(0,0,0)][backcolor=rgb(255, 255, 255)][size=4][backcolor=inherit] Many image processing algorithms (such as ...
Ternence.Hsu DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2776  1905  215  2087  1404  56  39  5  43  29 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号