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參數(shù)資料
| 型號： | LTC2440IGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 24-Bit High Speed Differential delta-sigma ADC with Selectable Speed/Resolution |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 24/28頁 |
| 文件大?。?/td> | 316K |
| 代理商： | LTC2440IGN |
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LTC2440
24
sn2440, 2440fas
V
CC
F
O
REF
+
REF
–
SCK
BUSY
IN
+
IN
–
SDO
CS
EXT
0.1
μ
F
4
13
5
6
12
1, 8, 9, 16
11
10
15
SDI
7
5V
10
μ
F
0.01
μ
F
LTC2440
2440 F19
14
10
IN+
5k
C2
C2, C5 TAIYO YUDEN JMK107BJ105MA
4.7
μ
F
8-12V
LT1236-5
1
μ
F
C1
R1
R2
R4
R5
0.01
μ
F
1
/
2
LTC2051HV
C5
1
μ
F
10
IN–
5k
C4
0.01
μ
F
1
/
2
LTC2051HV
+
–
+
–
fastest expected input signal. Figure 20 shows the large
signal response of the circuit in Figure 19.
3. Measure noise performance of the complete circuit. A
good technique is to build one amplifier for each input,
even if only one will be used in the end application. Bias
both amplifier outputs to midscale, with the inputs tied
together. Verify that the noise is as expected, taking into
account the bandwidth of the LTC2440 inputs for the OSR
being used, the amplifier’s broadband voltage noise and
1/f corner (if any) and any additional noise due to the
amplifier’s current noise and source resistance.
APPLICATIU
W
U
U
For more information on testing high linearity ADCs, refer
to Linear Technology Design Solutions 11.
Input Bandwidth and Frequency Rejection
The combined effect of the internal SINC
4
digital filter and
the digital and analog autocalibration circuits determines
the LTC2440 input bandwidth and rejection characteris-
tics. The digital filter’s response can be adjusted by setting
the oversample ratio (OSR) through the SPI interface or by
supplying an external conversion clock to the F
O
pin.
Table 6 lists the properties of the LTC2440 with various
Figure 19. Buffering the LTC2440 from High Impedance Sources Using A Chopper Amplifier
Figure 20. Large Signal Input Settling Time Indicates Completed
Settling with Selected Load Capacitance.
2440 F20
100
μ
s/DIV
1
Figure 21. Dynamic Input Current is Attenuated by Load
Capacitance and Completly Settled Before the Next Conversion
Sample Resulting in No Reduction in Performance.
2440 F21
5ns/DIV
2
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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(biāo)準(zhǔn)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(gè)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(biāo)準(zhǔn)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(gè)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(biāo)準(zhǔn)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(gè)單端，單極 |
| LTC2440IGNPBF | 制造商:Linear Technology 功能描述:24-Bit Diff. ADC Speed/Resolution SSOP16 |
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