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参数资料
| 型号： | LTC2483CDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/34页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT I2C 10-DFN |
| 标准包装： | 2,500 |
| 位数： | 16 |
| 采样率（每秒）： | 6.8 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 480µW |
| 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： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个差分，双极 |
| 配用： | DC955A-ND - BOARD DELTA SIGMA ADC LTC2483 |
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LTC2483
2483fc
normal mode rejection in a frequency range of fEOSC/5120
±4% and its harmonics. The normal mode rejection as a
function of the input frequency deviation from fEOSC/5120
is shown in Figure 6.
applicaTions inFormaTion
WheneveranexternalclockisnotpresentattheCA0/F0pin,
the converter automatically activates its internal oscillator
and enters the internal conversion clock mode. CA0/F0
may be tied HIGH or left floating in order to set the chip
address. The LTC2483 operation will not be disturbed if
the change of conversion clock source occurs during the
sleep state or during the data output state while the con-
verter uses an external serial clock. If the change occurs
during the conversion state, the result of the conversion in
progress may be outside specifications but the following
conversions will not be affected.
Table 4 summarizes the duration of the conversion state
of each state and the achievable output data rate as a
function of fEOSC.
DIFFERENTIAL INPUT SIGNAL FREQUENCY
DEVIATION FROM NOTCH FREQUENCY fEOSC/5120(%)
–12
–8
–4
0
4
8
12
NORMAL
MODE
REJECTION
(dB)
2483 F06
–80
–85
–90
–95
–100
–105
–110
–115
–120
–125
–130
–135
–140
Figure 6. LTC2483 Normal Mode Rejection When
Using an External Oscillator
Ease of Use
The LTC2483 data output has no latency, filter settling
delay or redundant data associated with the conversion
cycle. There is a one-to-one correspondence between the
conversion and the output data. Therefore, multiplexing
multiple analog voltages is easy.
The LTC2483 performs offset and full-scale calibrations
every conversion cycle. This calibration is transparent to
the user and has no effect on the cyclic operation described
above. The advantage of continuous calibration is extreme
stability of offset and full-scale readings with respect to
time, supply voltage change and temperature drift.
Power-Up Sequence
The LTC2483 automatically enters an internal reset state
when the power supply voltage VCC drops below ap-
proximately 2V. This feature guarantees the integrity of
the conversion result.
When the VCC voltage rises above this critical threshold,
the converter creates an internal power-on reset (POR)
signal with a duration of approximately 4ms. The POR
signalclearsallinternalregisters.FollowingthePORsignal,
the LTC2483 starts a normal conversion cycle and follows
the succession of states described in Figure 1. The first
conversion result following POR is accurate within the
specifications of the device if the power supply voltage is
restored within the operating range (2.7V to 5.5V) before
the end of the POR time interval.
Reference Voltage Range
The LTC2483 external reference voltage range is 0.1V
to VCC. The converter output noise is determined by
Table 4. LTC2483 State Duration
STATE
OPERATING MODE
DURATION
CONVERSION
Internal Oscillator
50Hz/60Hz Rejection
147ms, Output Data Rate ≤ 6.8 Readings/s
External Oscillator
CA0/F0 = External Oscillator with Frequency
fEOSC Hz (fEOSC/5120 Rejection)
41036/fEOSCs, Output Data Rate ≤ fEOSC/41036 Readings/s
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| LTC2483IDD#TRPBF | 功能描述:IC ADC 16BIT I2C 10-DFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
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| LTC2484CDD#PBF | 功能描述:IC ADC 24BIT 10-DFN 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 |
| LTC2484CDD#TR | 制造商:Linear Technology 功能描述:ADC Single Delta-Sigma 7.5sps 24-bit Serial 10-Pin DFN EP T/R |
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