參數(shù)資料
型號(hào)： LTC1274CS
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 12-Bit, 10mW, 100ksps ADCs with 1uA Shutdown
中文描述： 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
封裝： 0.300 INCH, PLASTIC, SO-24
文件頁(yè)數(shù)： 15/20頁(yè)
文件大小： 411K
代理商： LTC1274CS
15
LTC1274/LTC1277
U
S
A
DIGITAL INTERFACE
The ADCs are designed to interface with microproces-
sors as a memory mapped device. The CS and RD control
inputs are common to all peripheral memory interfacing.
A separate CONVST is used to initiate a conversion.
Figures 10a to 10c are the input/output characteristics of
the ADCs. The code transitions occur midway between
successive integer LSB values (i.e., 0.5LSB, 1.5LSB,
2.5LSB…FS – 1.5LSV). The output code is scaled such
that 1.0LSB = FS/4096 = 4.096V/4096 = 1.0mV.
O
PPLICATI
U
U
Unipolar Offset and Full-Scale Error Adjustments
In applications where absolute accuracy is important, then
offset and full-scale errors can be adjusted to zero. Offset
error must be adjusted before full-scale error. Figure 11a
shows the extra components required for full-scale error
adjustment. If both offset and full-scale adjustments are
needed, the circuit in Figure 11b can be used. For zero
offset error, apply 0.50mV (i.e., 0.5LSB) at the input and
adjust the offset trim until the LTC1274/LTC1277 output
code flickers between 0000 0000 0000 and 0000 0000
0001. For zero full-scale error, apply an analog input of
4.0945V (i.e., FS – 1.5LSB or last code transition) at the
input and adjust R5 until the ADC output code flickers
between 1111 1111 1110 and 1111 1111 1111.
Bipolar Offset and Full-Scale Error Adjustments
Bipolar offset and full-scale errors are adjusted in a similar
fashion to the unipolar case. Again, bipolar offset must be
INPUT VOLTAGE (V)
0V
O
–1
LSB
LTC1274/77 F10c
111...111
111...110
100...001
100...000
000...000
000...001
011...110
1
LSB
BIPOLAR
ZERO
011...111
FS/2 – 1LSB
–FS/2
1LSB =
=
= 1mV
4.096V
4096
FS
4096
Figure 10c. LTC1277 Bipolar Transfer Characteristics
(Offset Binary)
Figure 10a. LTC1274/LTC1277 Unipolar
Transfer Characteristics
Figure 10b. LTC1274 Bipolar Transfer
Characteristics (2’s Complement)
INPUT VOLTAGE (V)
0V
O
FS – 1LSB
LTC1274/77 F10a
111...111
111...110
111...101
111...100
000...000
000...001
000...010
000...011
1
LSB
UNIPOLAR
ZERO
1LSB =
FS
4096
4.096V
4096
=
= 1mV
INPUT VOLTAGE (V)
0V
O
–1
LSB
LTC1274/77 F10b
011...111
011...110
000...001
000...000
100...000
100...001
111...110
1
LSB
BIPOLAR
ZERO
111...111
FS/2 – 1LSB
–FS/2
1LSB =
=
= 1mV
4.096V
4096
FS
4096
相關(guān)PDF資料
PDF描述
LTC1277IS Pressure Transducer, Series 19 mm, Compensated, Pressure Range: 0 psi to 5 psi, Gage, 1/4-18 NPT, 10 Vdc excitation
LTC1274 12-Bit, 10mW, 100ksps ADCs with 1uA Shutdown
LTC1274IS Replaced by TLC2933A : High Performance Phase Locked Loop 14-TSSOP -20 to 75
LTC1277CS 12-Bit, 10mW, 100ksps ADCs with 1uA Shutdown
LTC1275AC Phase Locked Loop 14-TSSOP -20 to 75
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1274CSW 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC 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
LTC1274CSW#PBF 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC 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(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
LTC1274CSW#TR 功能描述:IC ADC 12BIT SAMPL SHTDWN 24SOIC 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
LTC1274CSW#TRPBF 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC 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
LTC1274ISW 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC 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):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*