参数资料
型号: LTC2439-1IGN#PBF
厂商: Linear Technology
文件页数: 1/28页
文件大小: 0K
描述: IC ADC 16BIT 16CH MCRPWR 28SSOP
标准包装: 49
位数: 16
采样率(每秒): 6.8
数据接口: MICROWIRE?,串行,SPI?
转换器数目: 1
功率耗散(最大): 1mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.154",3.90mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
输入数目和类型: 16 个单端,双极;8 个差分,双极
配用: DC790A-ND - BOARD DELTA SIGMA ADC LTC2439-1
LTC2439-1
1
24391fa
8-/16-Channel
16-Bit No Latency
ΣTM ADC
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
The LTC
2439-1 is a 16-channel (8-differential)
micropower 16-bit
Σ analog-to-digital converter. It op-
erates from 2.7V to 5.5V and includes an integrated
oscillator, 0.12LSB INL and 1
VRMSnoise.Itusesdelta-
sigma technology and provides single cycle settling time
for multiplexed applications. Through a single pin, the
LTC2439-1 can be configured for better than 87dB differ-
ential mode rejection at 50Hz and 60Hz
±2%, or it can be
driven by an external oscillator for a user-defined rejec-
tion frequency. The internal oscillator requires no external
frequency setting components.
The LTC2439-1 accepts any external differential reference
voltage from 0.1V to VCC for flexible ratiometric and remote
sensing measurement applications. It can be configured
to take 8 differential channels or 16 single-ended channels.
The full-scale bipolar input range is from – 0.5VREF to
0.5VREF.Thereferencecommonmodevoltage,VREFCM,and
the input common mode voltage, VINCM, may be indepen-
dently set between GND and VCC. The DC common mode
input rejection is better than 140dB.
The LTC2439-1 communicates through a flexible
4-wire digital interface that is compatible with SPI and
MICROWIRE
TM protocols.
Direct Sensor Digitizer
Weight Scales
Direct Temperature Measurement
Gas Analyzers
Strain Gauge Transducers
Instrumentation
Data Acquisition
Industrial Process Control
, LTC and LT are registered trademarks of Linear Technology Corporation.
16-Channel Single-Ended or 8-Channel Differential
Inputs
Low Supply Current (200
A, 4A in Autosleep)
Rail-to-Rail Differential Input/Reference
16-Bit No Missing Codes
1
V RMS Noise, 16-ENOBS Independent of VREF
Very Low Transition Noise: Less Than 0.02LSB
Operates with a Reference as Low as 100mV with
1.5
V LSB Step Size
Guaranteed Modulator Stability and Lock-Up
Immunity for Any Input and Reference Conditions
Single Supply 2.7V to 5.5V Operation
Internal Oscillator—No External Components
Required
87dB Min, 50Hz and 60Hz Simultaneous Notch Filter
Pin Compatible with the 24-Bit LTC2418
28-Lead SSOP Package
No Latency
Σ is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Minimum Resolvable
Signal vs VREF
SDI
SCK
SDO
CS
FO
REF+
VCC
9
11
2.7V TO 5.5V
20
18
17
16
19
1
F
COM
REF
GND
10
THERMOCOUPLE
12
15
DIFFERENTIAL
16-BIT
Σ ADC
+
241418 TA01a
4-WIRE
SPI INTERFACE
LTC2439-1
= EXTERNAL OSCILLATOR
= 50Hz and 60Hz REJECTION
CH0
CH1
21
22
CH7
CH8
28
1
CH15
8
16-CHANNEL
MUX
VREF (V)
0
*FOR VREF = 0.4V RESOLUTION IS LIMITED BY STEP SIZE
0
MINIMUM
RESOLVABLE
SIGNAL
(
V)
10
30
40
50
2
4
5
90
24361 TA02
20
13
60
70
80
DESCRIPTIO
U
相关PDF资料
PDF描述
PT02SE-24-61P CONN RECEPT 61POS W/PINS CRIMP
VI-B7N-MW-S CONVERTER MOD DC/DC 18.5V 100W
VE-B3T-IW-B1 CONVERTER MOD DC/DC 6.5V 100W
LTC2439-1IGN IC ADC 16BIT 16CH MCRPWR 28SSOP
VI-B7L-MW-S CONVERTER MOD DC/DC 28V 100W
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