Datasheet 搜索 > 比较器 > Linear Technology（凌力尔特） > LTC1440CDD#PBF 数据手册 > LTC1440CDD#PBF 数据手册 1/42 页
器件3D模型￥ 14.666
LTC1440CDD#PBF 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
比较器
封装:
DFN-8
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
封装尺寸在P40
焊盘布局在P40
技术参数、封装参数在P6
应用领域在P6
导航目录
LTC1440CDD#PBF数据手册
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LTC2480
1
2480fd
Typical applicaTion
FeaTures
applicaTions
DescripTion
16-Bit ∆Σ ADC with Easy Drive
Input Current Cancellation
The LTC
®
2480 combines a 16-bit plus sign No Latency
∆Σ
™
analog-to-digital converter with patented 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 input signals, with rail-to-rail input range to be directly
digitized while maintaining exceptional DC accuracy.
The LTC2480 includes on-chip programmable gain, a
temperature sensor and an oscillator. The LTC2480 can
be configured to provide a programmable gain from 1
to 256 in 8 steps, measure an external signal or internal
temperature sensor and reject line frequencies. 50Hz, 60Hz
or simultaneous 50Hz/60Hz line frequency rejection can
be selected as well as a 2x speed-up mode.
The LTC2480 allows a wide common mode input range
(0V to V
CC
) independent of the reference voltage. The
reference can be as low as 100mV or can be tied directly
to V
CC
. The LTC2480 includes an on-chip trimmed oscil-
lator eliminating the need for external crystals or oscil-
lators. Absolute accuracy and low drift are automatically
maintained through continuous, transparent, offset and
full-scale calibration.
+FS Error vs R
SOURCE
at IN
+
and IN
–
n
Easy Drive Technology Enables Rail-to-Rail Inputs
with Zero Differential Input Current
n
Directly Digitizes High Impedance Sensors with
Full Accuracy
n
Programmable Gain from 1 to 256
n
Integrated Temperature Sensor
n
GND to V
CC
Input/Reference Common Mode Range
n
Programmable 50Hz, 60Hz or Simultaneous
50Hz/60Hz Rejection Mode
n
2ppm (0.25LSB) INL, No Missing Codes
n
1ppm Offset and 15ppm Full-Scale Error
n
Selectable 2x Speed Mode (15Hz Using Internal
Oscillator)
n
No Latency: Digital Filter Settles in a Single Cycle
n
Single Supply 2.7V to 5.5V Operation
n
Internal Oscillator
n
Available in a Tiny (3mm × 3mm) 10-Lead
DFN Package and 10-Lead MSOP 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
L, LT, LTC and LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency ∆Σ and Easy Drive are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Patents pending.
R
SOURCE
(Ω)
1
+FS ERROR (ppm)
–20
0
20
1k
100k
2480 TA04
–40
–60
–80
10 100 10k
40
60
80
V
CC
= 5V
V
REF
= 5V
V
IN
+
= 3.75V
V
IN
–
= 1.25V
f
O
= GND
T
A
= 25°C
C
IN
= 1µF
LTC2480
V
IN
+
V
REF
V
CC
V
CC
GND f
O
V
IN
–
1µF
SDO
4-WIRE
SPI INTERFACE
10k
I
DIFF
= 0
10k
SCK
2480 TA01
CS
SDI
0.1µF
0.1µF
SENSE
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