參數(shù)資料
型號(hào)： LTC2494CUHF#TR
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： ADC
英文描述： 16-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQCC38
封裝： 5 X 7 MM, PLASTIC, MO-220WKHD, QFN-38
文件頁(yè)數(shù)： 1/36頁(yè)
文件大小： 675K
代理商： LTC2494CUHF#TR
LTC2494
2494fa
Typical applicaTion
FeaTures
applicaTions
DescripTion
16-Bit 8-/16-Channel
ΔS ADC
with PGA and Easy Drive
Input Current Cancellation
The LTC2494 is a 16-channel (8-differential), 16-bit, No
Latency
ΔS ADC with Easy Drive technology. The pat-
ented sampling scheme eliminates dynamic input current
errors and the shortcomings of on-chip buffering through
automatic cancellation of differential input current. This
allows large external source impedances, and rail-to-rail
input signals to be directly digitized while maintaining
exceptional DC accuracy.
The LTC2494 includes programmable gain, a high accu-
racy temperature sensor and an integrated oscillator. This
device can be configured to measure an external signal
(from combinations of 16 analog input channels operat-
ing in single ended or differential modes) or its internal
temperature sensor. The integrated temperature sensor
offers 1/2°C resolution and 2°C absolute accuracy. The
LTC2494 can be configured to provide a progammable
gain from 1 to 256 in 8 steps.
The LTC2494 allows a wide common mode input range
(0V to VCC), independent of the reference voltage. Any
combination of single-ended or differential inputs can be
selected and the first conversion, after a new channel is
selected, is valid.
Data Acquisition System with Temperature Compensation
■
Up to 8 Differential or 16 Single-Ended Inputs
■
Easy Drive Technology Enables Rail-to-Rail Inputs
with Zero Differential Input Current
■
Directly Digitizes High Impedance Sensors with
Full Accuracy
■
600nV RMS Noise
■
Programmable Gain from 1 to 256
■
Integrated High Accuracy Temperature Sensor
■
GND to VCC Input/Reference Common Mode Range
■
Programmable 50Hz, 60Hz or Simultaneous
50Hz/60Hz Rejection Mode
■
2ppm INL, No Missing Codes
■
1ppm Offset and 15ppm Full-Scale Error
■
2x Speed Mode/Reduced Power Mode (15Hz Using
Internal Oscillator and 80A at 7.5Hz Output)
■
No Latency: Digital Filter Settles in a Single Cycle,
Even After a New Channel is Selected
■
Single Supply 2.7V to 5.5V Operation
■
Internal Oscillator
■
Tiny 5mm
× 7mm QFN Package
■
Direct Sensor Digitizer
■
Direct Temperature Measurement
■
Instrumentation
■
Industrial Process Control
Absolute Temperature Error
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
No Latency
ΔS and Easy Drive are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
SDI
SCK
SDO
CS
FO
REF+
VCC
MUXOUT/
ADCIN
MUXOUT/
ADCIN
2.7V TO 5.5V
0.1
F
COM
REF–
16-BIT
Σ ADC
WITH EASY-DRIVE
16-CHANNEL
MUX
TEMPERATURE
SENSOR
IN+
IN–
2494 TA01a
4-WIRE
SPI INTERFACE
CH0
CH1
CH7
CH8
CH15
10
F
OSC
TEMPERATURE (
°C)
–55 –30
–5
ABSOLUTE
ERROR
(°
C)
5
4
3
2
1
–4
–3
–2
–1
0
120
95
70
45
20
2494 TA01b
–5
相關(guān)PDF資料
PDF描述
LTC2495IUHF#TR 16-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQCC38
LTC2495CUHF#TR 16-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQCC38
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC2495CUHF#TRPBF 功能描述:IC ADC 16BIT W/PGA 38-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
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