參數(shù)資料
型號(hào)： LTC2486CDE
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： ADC
英文描述： 16-Bit 2-/4-Channel ツヒ ADC with PGA and Easy Drive Input Current Cancellation
中文描述： 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PQCC14
封裝： 4 X 3 MM, PLASTIC, MO-229WGED-3, QFN-14
文件頁(yè)數(shù)： 1/36頁(yè)
文件大?。?/td> 596K
代理商： LTC2486CDE
LTC2486
1
2486f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
16-Bit 2-/4-Channel
ΔΣ
ADC
with PGA and Easy Drive
Input Current Cancellation
The LTC
2486 is a 4-channel (2-channel differential),
16-bit, No Latency
ΔΣ
ADC with Easy Drive technology.
The patented 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 LTC2486 includes programmable gain, a high accuracy
temperature sensor, and an integrated oscillator. This de-
vice can be configured to measure an external signal (from
combinations of 4 analog input channels operating in single
ended or differential modes) or its internal temperature sen-
sor. It can be programmed to reject line frequencies of 50Hz,
60Hz, or simultaneous 50Hz/60Hz, provide a programmable
gain from 1 to 256 in 8 steps, and configured to double its
output rate. The integrated temperature sensor offers 1/2°C
resolution and 2°C absolute accuracy.
The LTC2486 allows a wide common mode input range
(0V to V
CC
), independent of the reference voltage. Any
combination of single-ended or differential inputs can
be selected and the first conversion after a new channel
selection is valid.
Data Acquisition System with Temperature Compensation
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
No Latency
Σ
and Easy Drive are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
■
Up to 2 Differential or 4 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 V
CC
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 80μA 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 (0.8mW)
■
Internal Oscillator
■
Tiny 4mm
×
3mm DFN Package
■
Direct Sensor Digitizer
■
Direct Temperature Measurement
■
Instrumentation
■
Industrial Process Control
Absolute Temperature Error
SDI
SCK
SDO
CS
F
O
REF
+
V
CC
2.7V TO 5.5V
10
μ
F
COM
REF
–
16-BIT
Σ
ADC
WITH EASY-DRIVE
4-CHANNEL
MUX
TEMPERATURE
SENSOR
IN
+
IN
–
2486 TA01a
4-WIRE
SPI INTERFACE
CH0
CH1
CH3
CH2
0.1
μ
F
OSC
TEMPERATURE (
°
C)
–55
–30
–5
A
°
C
5
4
3
2
1
–4
–3
–2
–1
0
120
95
70
45
20
2486 TA01b
–5
相關(guān)PDF資料
PDF描述
LTC2486IDE 16-Bit 2-/4-Channel ツヒ ADC with PGA and Easy Drive Input Current Cancellation
LTC2487 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
LTC2487CDEPBF 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
LTC2487CDETRPBF 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
LTC2487IDEPBF 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
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LTC2486IDE#TRPBF 功能描述:IC ADC 16BIT W/PGA 14-DFN 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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