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参数资料
| 型号： | LTC2355IMSE-12#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
| 封装： | PLASTIC, MSOP-10 |
| 文件页数： | 3/16页 |
| 文件大小： | 220K |
| 代理商： | LTC2355IMSE-12#TR |
11
LTC2355-12/LTC2355-14
2355f
INPUT SPAN VERSUS REFERENCE VOLTAGE
The differential input range has a 0V to VREF unipolar
voltage span that equals the difference between the volt-
age at the reference buffer output VREF at Pin 3, and the
voltage at the ground (Exposed Pad Ground). The differ-
ential input range of the ADC is 0V to 2.5V when using the
internal reference. The internal ADC is referenced to these
two nodes. This relationship also holds true with an
external reference.
DIFFERENTIAL INPUTS
The LTC2355-12/LTC2355-14 has a unique differential
sample-and-hold circuit that measures input voltages
from ground to VDD. The ADC will always convert the
unipolar difference of AIN+ – AIN–, independent of the
common mode voltage at the inputs. The common mode
rejection holds up at extremely high frequencies, see
Figure 3. The only requirement is that both inputs not go
below ground or exceed VDD. Integral nonlinearity errors
(INL) and differential nonlinearity errors (DNL) are largely
independent of the common mode voltage. However, the
offset error will vary. The change in offset error is typically
less than 0.1% of the common mode voltage.
Figure 4 shows the ideal input/output characteristics for
the LTC2355-12/LTC2355-14. The code transitions occur
midway between successive integer LSB values (i.e.,
0.5LSB, 1.5LSB, 2.5LSB, FS – 1.5LSB). The output code
is straight binary with 1LSB = 2.5V/16384 = 153
V for the
LTC2355-14, and 1LSB = 2.5V/4096 = 610
V for the
LTC2355-12. The LTC2355-14 has 1LSB RMS of random
white noise.
Figure 3. CMRR vs Frequency
Figure 4. LTC2355-12/LTC2355-14 Transfer Characteristic
APPLICATIO S I FOR ATIO
WU
U
FREQUENCY (Hz)
100
CMRR
(dB)
0
–20
–40
–60
–80
–100
–120
1k
10k
100k
1M
2355 F03
10M
100M
INPUT VOLTAGE (V)
UNIPOLAR
OUTPUT
CODE
2355 F05
111...111
111...110
111...101
000...000
000...001
000...010
FS – 1LSB
0
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| LTC2355IMSE-14#TR | 1-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
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| LTC2356IMSE-12#TR | 1-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
| LTC2356IMSE-14#TR | 1-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2355IMSE-14 | 制造商:Linear Technology 功能描述:IC ADC 14BIT 3 WIRE SPI 3.5MSPS 制造商:Linear Technology 功能描述:IC ADC, 14BIT, 3 WIRE SPI, 3.5MSPS |
| LTC2355IMSE-14#PBF | 功能描述:IC ADC 14BIT 3.5MSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| LTC2355IMSE-14#TRPBF | 功能描述:IC ADC 14BIT 3.5MSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC2356CMSE-12#PBF | 功能描述:IC ADC 12BIT 3.5MSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| LTC2356CMSE-12#TRPBF | 功能描述:IC ADC 12BIT 3.5MSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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