參數(shù)資料
型號(hào)： LTC2483IDD#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 1/34頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT I2C 10-DFN
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 16
采樣率（每秒）： 6.8
數(shù)據(jù)接口： I²C，串行
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
安裝類型： 表面貼裝
封裝/外殼： 10-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 10-DFN（3x3）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 1 個(gè)差分，雙極
配用： DC955A-ND - BOARD DELTA SIGMA ADC LTC2483
LTC2483
2483fc
Typical applicaTion
DescripTion
16-Bit
Σ ADC with Easy Drive
Input Current Cancellation
and I2C Interface
The LTC 2483 combines a 16-bit plus sign No Latency
∑ analog-to-digital converter with patented Easy Drive
technologyandI2Cdigitalinterface.Thepatentedsampling
scheme eliminates dynamic input current errors and the
shortcomings of on-chip buffering through automatic
cancellation of differential input current. This allows large
externalsourceimpedancesandinputsignals,withrail-to-
rail input range to be directly digitized while maintaining
exceptional DC accuracy.
The LTC2483 allows a wide common mode input range
(0V to VCC) independent of the reference voltage. The
reference can be as low as 100mV or can be tied directly
to VCC. The noise level is 600nVRMS independent of VREF.
This allows direct digitization of low level signals with
16-bitaccuracy.TheLTC2483includesanon-chiptrimmed
oscillator, eliminating the need for external crystals or
oscillators and provides 87dB rejection of 50Hz and 60Hz
line frequency noise. Absolute accuracy and low drift are
automaticallymaintainedthroughcontinuous,transparent,
offset and full-scale calibration.
+FS Error vs RSOURCE at IN+ and IN–
FeaTures
applicaTions
n
Easy Drive Technology Enables Rail-to-Rail
Inputs with Zero Differential Input Current
n
Directly Digitizes High Impedance Sensors with
Full Accuracy
n
600nVRMS Noise, Independent of VREF
n
GND to VCC Input/Reference Common Mode Range
n
2-Wire I2C Interface
n
Simultaneous 50Hz/60Hz Rejection
n
2ppm (0.25 LSB) INL, No Missing Codes
n
1ppm Offset and 15ppm Full-Scale Error
n
No Latency: Digital Filter Settles in a Single Cycle
n
Single Supply 2.7V to 5.5V Operation
n
Internal Oscillator
n
Six Addresses Available
n
Available in a Tiny (3mm
× 3mm) 10-Lead
DFN Package
n
Direct Sensor Digitizer
n
Weight Scales
n
Direct Temperature Measurement
n
Strain Gauge Transducers
n
Instrumentation
n
Industrial Process Control
n
DVMs and Meters
LTC2483
VIN+
REF+
VCC
GND
VIN–
1F
SDA
2-WIRE
I2C INTERFACE
0.1F
10k
IDIFF = 0
10k
0.1F
CA0/F0
2483 TA01
CA1
SCL
6 ADDRESSES
REF–
SENSE
RSOURCE ()
1
+FS
ERROR
(ppm)
–20
0
20
1k
100k
–40
–60
–80
10
100
10k
40
60
80
VCC = 5V
VREF = 5V
VIN+ = 3.75V
VIN– = 1.25V
FO = GND
TA = 25°C
CIN = 1F
2483 TA02
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency ∑ and Easy Drive are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Patents pending.
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