參數(shù)資料
型號： LTC2413
廠商： Linear Technology Corporation
元件分類： ADC
英文描述： 2.7V to 5.5V Simultaneous 50Hz/60Hz Rejection Micropower Differential Σ△ Analog to Digital Converter(2.7V ～5.5V，微功耗，24位差分Σ△串行模數(shù)轉(zhuǎn)換器)
中文描述： 2.7V至5.5V同步50Hz/60Hz抑制微差分Σ△模數(shù)轉(zhuǎn)換器（2.7?5.5V的，微功耗，24位差分Σ△串行模數(shù)轉(zhuǎn)換器）
文件頁數(shù)： 1/40頁
文件大小： 373K
代理商： LTC2413
LTC2413
1
The LTC
2413 is a 2.7V to 5.5V simultaneous 50Hz/60Hz
rejection micropower 24-bit differential
Σ
analog to
digital converter with an integrated oscillator, 2ppm INL
and 0.16ppm RMS noise. It uses delta-sigma technology
and provides single cycle settling time for multiplexed
applications. Through a single pin, the LTC2413 can be
configured for better than 87dB input differential mode
rejection over the range of 49Hz to 61.2Hz (50Hz and
60Hz
±
2% simultaneously), or it can be driven by an
external oscillator for a user defined rejection frequency.
The internal oscillator requires no external frequency
setting components.
The converter accepts any external differential reference
voltage from 0.1V to V
CC
for flexible ratiometric and
remote sensing measurement configurations. The full-
scale differential input range is from –0.5V
REF
to 0.5V
REF
.
The reference common mode voltage, V
REFCM
, and the
input common mode voltage, V
INCM
, may be indepen-
dently set anywhere within the GND to V
CC
range of the
LTC2413. The DC common mode input rejection is better
than 140dB.
The LTC2413 communicates through a flexible 3-wire
digital interface which is compatible with SPI and
MICROWIRE
TM
protocols.
I
Direct Sensor Digitizer
I
Weight Scales
I
Direct Temperature Measurement
I
Gas Analyzers
I
Strain-Gauge Transducers
I
Instrumentation
I
Data Acquisition
I
Industrial Process Control
I
6-Digit DVMs
I
Products for International Markets
, LTC and LT are registered trademarks of Linear Technology Corporation.
No Latency
Σ
is a trademark of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
I
Simultaneous 50Hz/60Hz Rejection
(87dB Minimum)
I
Differential Input and Differential Reference with
GND to V
CC
Common Mode Range
I
2ppm INL and No Missing Codes at 24 Bits
I
0.1ppm Offset and 2.5ppm Full-Scale Error
I
0.16ppm Noise
I
No Latency: Digital Filter Settles in a Single Cycle.
I
Internal Oscillator—No External Components
Required
I
24-Bit ADC in Narrow SSOP-16 Package
(SO-8 Footprint)
I
Single Supply 2.7V to 5.5V Operation
I
Low Supply Current (200
μ
A) and Auto Shutdown
I
Pin Compatible with LTC2410
APPLICATIU
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
24-Bit No Latency
Σ
TM
ADC,
with Simultaneous 50Hz/60Hz Rejection
July 2000
V
CC
F
O
REF
+
REF
–
SCK
IN
+
IN
–
GND
SDO
CS
2
14
3
4
13
5
6
12
1, 7, 8, 9, 10, 15, 16
11
REFERENCE
VOLTAGE
0.1V TO V
CC
ANALOG INPUT RANGE
–0.5V
REF
TO 0.5V
REF
3-WIRE
SPI INTERFACE
1
μ
F
2.7V TO 5.5V
LTC2413
2413 TA01
= EXTERNAL CLOCK SOURCE
= INTERNAL OSC/
SIMULTANEOUS 50Hz/60Hz REJECTION
INPUT FREQUENCY (Hz)
48
50
52
54
56
58
60
62
N
2413 TA02
–80
–85
–90
–95
–100
–105
–110
–115
–120
V
CC
= 5V
REF
= 5V
REF
–
= GND
V
INCM
= 2.5V
V
IN(P-P)
= 5V
T
A
= 25
°
C
MEASURED DATA
CALCULATED DATA
Final Electrical Specifications
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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