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| 型號(hào)： | LTC2436-1CGN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 14/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 2CH DIFF-IN 16BIT 16SSOP |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 6.8 |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 1mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°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(gè)差分，雙極 |
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LTC2436-1
21
24361f
by Figures 14 and 15. For simplicity, two distinct situa-
tions can be considered.
For relatively small values of input capacitance (CIN <
0.01
F), the voltage on the sampling capacitor settles
almost completely and relatively large values for the
source impedance result in only small errors. Such values
for CIN will deteriorate the converter offset and gain
performance without significant benefits of signal filtering
and the user is advised to avoid them. Nevertheless, when
small values of CIN are unavoidably present as parasitics
of input multiplexers, wires, connectors or sensors, the
LTC2436-1 can maintain its accuracy while operating with
relative large values of source resistance as shown in
Figure 16. +FS Error vs RSOURCE at IN+ or IN– (Large CIN)
Figure 17. –FS Error vs RSOURCE at IN+ or IN– (Large CIN)
APPLICATIO S I FOR ATIO
WU
UU
RSOURCE ()
0 100 200 300 400 500 600 700 800 900 1000
+FS
ERROR
(LSB)
24361 F16
20
16
12
8
4
0
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 3.75V
IN– = 1.25V
FO = GND
TA = 25°C
CIN = 0.01F
CIN = 0.1F
CIN = 1F, 10F
RSOURCE ()
0 100 200 300 400 500 600 700 800 900 1000
–
FS
ERROR
(LSB)
24361 F17
0
–4
–8
–12
–16
–20
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 1.25V
IN– = 3.75V
FO = GND
TA = 25°C
CIN = 0.01F
CIN = 0.1F
CIN = 1F, 10F
Figure 15. –FS Error vs RSOURCE at IN
+ or IN– (Small CIN)
RSOURCE ()
1
10
100
1k
10k
100k
–
FS
ERROR
(LSB)
24361 F15
0
–3
–2
–1
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = GND
IN– = 2.5V
FO = GND
TA = 25°C
CIN = 0.01F
CIN = 0.001F
CIN = 100pF
CIN = 0pF
Figures 14 and 15. These measured results may be slightly
different from the first order approximation suggested
earlier because they include the effect of the actual second
order input network together with the nonlinear settling
process of the input amplifiers. For small CIN values, the
settling on IN+ and IN– occurs almost independently and
there is little benefit in trying to match the source imped-
ance for the two pins.
Larger values of input capacitors (CIN > 0.01F) may be
required in certain configurations for antialiasing or gen-
eral input signal filtering. Such capacitors will average the
input sampling charge and the external source resistance
will see a quasi constant input differential impedance.
When FO = LOW (internal oscillator and 50Hz/60Hz notch),
the typical differential input resistance is 2M
which will
generate a gain error of approximately 1LSB at full scale
for each 60
of source resistance driving IN+ or IN–.
When FO is driven by an external oscillator with a fre-
quency fEOSC (external conversion clock operation), the
typical differential input resistance is 0.28 1012/fEOSC
and each ohm of source resistance driving IN+ or IN– will
result in 1.11 10–7 fEOSCLSB gain error at full scale. The
effect of the source resistance on the two input pins is
additive with respect to this gain error. The typical +FS and
–FS errors as a function of the sum of the source resis-
tance seen by IN+ and IN– for large values of CIN are shown
in Figures 16 and 17.
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| LTC2436-1CGN#PBF | 功能描述:IC ADC 2CH DIFF-IN 16BIT 16SSOP 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 |
| LTC2436-1CGN#TR | 功能描述:IC CONV A/D 16B 2CH DIFF 16SSOP 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 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:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC2436-1CGN#TRPBF | 功能描述:IC CONV A/D 16B 2CH DIFF 16SSOP 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 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:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| LTC2436-1CGNPBF | 制造商:Linear Technology 功能描述:ADC 16-Bit 2-Channel Differential SSOP16 |
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