OSR, the noise performance of the device is 200nVRMS
參數(shù)資料
型號: LTC2440IGN
廠商: Linear Technology
文件頁數(shù): 13/28頁
文件大小: 0K
描述: IC ADC DIFFER 24-BIT HS 16-SSOP
標準包裝: 100
位數(shù): 24
采樣率(每秒): 3.5k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 40mW
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: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SSOP
包裝: 管件
輸入數(shù)目和類型: 1 個差分,雙極
配用: DC570A-ND - BOARD DELTA SIGMA ADC LTC2440
LTC2440
20
2440fd
APPLICATIONS INFORMATION
OSR, the noise performance of the device is 200nVRMSwith
better than 80dB rejection of 50Hz ±2% and 60Hz ±2%.
Since the OSR is large (32,768) the wide band rejection
is extremely large and the antialiasing requirements are
simple. The rst multiple of fS occurs at 55Hz 32,768 =
1.8MHz, see Figure 13.
The rst NULL becomes fN = 7.04kHz with an OSR of 256
(an output rate of 880Hz) and fO grounded. While the NULL
has shifted, the sample rate remains constant. As a result
of constant modulator sampling rate, the linearity, offset
and full-scale performance remains unchanged as does
the rst multiple of fS.
Figure 12. LTC2440 Normal Mode Rejection (Internal Oscillator)
Figure 13. LTC2440 Normal Mode Rejection (Internal Oscillator)
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
47
–140
NORMAL
MODE
REJECTION
(dB)
–130
–120
–110
–100
51
55
59
63
2440 F12
–90
–80
49
53
57
61
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
0
–60
–40
0
1440 F13
–80
–100
1000000
2000000
–120
1.8MHz
–140
–20
NORMAL
MODE
REJECTION
(dB)
REJECTION > 120dB
Table 5. OSR vs Notch Frequency (fN) with Internal Oscillator
Running at 9MHz
OSR
NOTCH (fN)
64
28.16kHz
128
14.08kHz
256
7.04kHz
512
3.52kHz
1024
1.76kHz
2048
880Hz
4096
440Hz
8192
220Hz
16384
110Hz
32768*
55Hz
*Simultaneous 50/60 rejection
相關(guān)PDF資料
PDF描述
LTC2414CGN IC ADC 8CH 24BIT DIFFINPUT28SSOP
MS27467T25B4SLC CONN HSG PLUG 56POS STRGHT SCKT
LTC2415-1IGN#PBF IC ADC 24BIT DIFFINPUT/REF16SSOP
D38999/26JJ61PALC CONN HSG PLUG 61POS STRGHT PINS
LTC2415-1IGN IC ADC 24BIT DIFFINPUT/REF16SSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2440IGN#PBF 功能描述:IC ADC DIFFER 24-BIT HS 16-SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:microPOWER™ 位數(shù):8 采樣率(每秒):1M 數(shù)據(jù)接口:串行,SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤(4x4) 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端,單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
LTC2440IGN#PBF 制造商:Linear Technology 功能描述:A/D Converter (A-D) IC 制造商:Linear Technology 功能描述:IC, ADC, 24BIT, 3.5KHZ, SSOP-16
LTC2440IGN#TR 功能描述:IC CONV A/D 24-BIT DIFF 16-SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率(每秒):45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
LTC2440IGN#TRPBF 功能描述:IC ADC DIFFER 24-BIT HS 16-SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):16 采樣率(每秒):45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極
LTC2440IGNPBF 制造商:Linear Technology 功能描述:24-Bit Diff. ADC Speed/Resolution SSOP16