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| 型号： | LTC1415CG#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC A/D CONV 12BIT SAMPLNG 28SSOP |
| 标准包装： | 47 |
| 位数： | 12 |
| 采样率（每秒）： | 1.25M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 100mW |
| 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： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，双极；1 个差分，双极 |
11
LTC1415
The following list is a summary of the op amps that are
suitable for driving the LTC1415, more detailed informa-
tion is available in the Linear Technology databooks and
the LinearView
TM CD-ROM.
LT
1215/LT1216: Dual and quad 23MHz, 50V/
s single
supply op amps. Single 5V to
±15V supplies, 6.6mA
specifications, 90ns settling to 0.5LSB.
LT1223: 100MHz video current feedback amplifier.
±5V
to
±15V supplies, 6mA supply current. Low distortion up
to and above 400kHz. Low noise. Good for AC applica-
tions.
LT1227: 140MHz video current feedback amplifier.
±5V
to
±15V supplies, 10mA supply current. Lowest distor-
tion at frequencies above 400kHz. Low noise. Best for AC
applications.
LT1229/LT1230: Dual and quad 100MHz current feedback
amplifiers.
±2V to ±15V supplies, 6mA supply current
each amplifier. Low noise. Good AC specs.
LT1360: 37MHz voltage feedback amplifier.
±5V to ±15V
supplies. 3.8mA supply current. Good AC and DC specs.
70ns settling to 0.5LSB.
LT1363: 50MHz, 450V/
s op amps. ±5V to ±15V sup-
plies. 6.3mA supply current. Good AC and DC specs. 60ns
settling to 0.5LSB.
LT1364/LT1365: Dual and quad 50MHz, 450V/
sopamps.
±5V to ±15V supplies, 6.3mA supply current per ampli-
fier. 60ns settling to 0.5LSB.
Input Filtering
The noise and the distortion of the input amplifier and
other circuitry must be considered since they will add to
the LTC1415 noise and distortion. The small-signal band-
width of the sample-and-hold circuit is 20MHz. Any noise
or distortion products that are present at the analog inputs
will be summed over this entire bandwidth. Noisy input
circuitry should be filtered prior to the analog inputs to
minimize noise. A simple 1-pole RC filter is sufficient for
many applications. For example Figure 7 shows a 1000pF
capacitor from +AIN to ground and a 100 source resistor
to limit the input bandwidth to 1.6MHz. The 1000pF
APPLICATIONS INFORMATION
WU
U
LinearView is a trademark of Linear Technology Corporation.
capacitor also acts as a charge reservoir for the input
sample-and-hold and isolates the ADC input from sam-
pling glitch sensitive circuitry. High quality capacitors and
resistors should be used since these components can add
distortion. NPO and silver mica type dielectric capacitors
have excellent linearity. Carbon surface mount resistors can
also generate distortion from self heating and from damage
that may occur during soldering. Metal film surface mount
resistors are much less susceptible to both problems.
LTC1415
+AIN
–AIN
VREF
REFCOMP
AGND
LTC1415 F07
1
2
3
4
5
10
F
1000pF
100
ANALOG INPUT
Figure 7. RC Input Filter
Input Range
The 4.096V input range of the LTC1415 is optimized for
low noise. Most single supply op amps also perform well
over this same range, allowing direct coupling to the
analog inputs and eliminating the need for special transla-
tion circuitry.
Some applications may require other input ranges. The
LTC1415 differential inputs and reference circuitry can
accommodate other input ranges often with little or no
additional circuitry. The following sections describe the
reference and input circuitry and how they affect the input
range.
Internal Reference
The LTC1415 has an on-chip, temperature compensated,
curvature corrected, bandgap reference that is factory
trimmed to 2.500V. It is connected internally to a reference
amplifier and is available at VREF (Pin 3) see Figure 8a. A
2k resistor is in series with the output so that it can be
easily overdriven by an external reference or other
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| LTC1415CSW | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SOIC RoHS:否 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 |
| LTC1415CSW#PBF | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SOIC 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 |
| LTC1415CSW#TR | 功能描述:IC ADC 12BIT 1.25MSPS SMP 28SOIC RoHS:否 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 |
| LTC1415CSW#TRPBF | 功能描述:IC A/D CONV 12BIT SAMPLNG 28SOIC 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 |
| LTC1415CSWPBF | 制造商:Linear Technology 功能描述:LTC1415CSWPBF |
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