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參數(shù)資料
| 型號： | TC510COG713 |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 10/38頁 |
| 文件大小： | 0K |
| 描述： | IC ANALOG FRONT END 17BIT 24SOIC |
| 標準包裝： | 1,000 |
| 位數(shù)： | 17 |
| 通道數(shù)： | 1 |
| 功率（瓦特）： | 18mW |
| 電壓 - 電源，模擬： | 5V |
| 電壓 - 電源，數(shù)字： | 4.5 V ~ 5.5 V |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應商設(shè)備封裝： | 24-SOIC |
| 包裝： | 帶卷 (TR) |
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TC500/A/510/514
DS21428E-page 18
2008 Microchip Technology Inc.
8.6
Integrator Output Zero Phase
The comparator delay and the controller’s response
latency may result in overshoot, causing charge
buildup on the integrator at the end of a conversion.
This charge must be removed or performance will
degrade. The integrator output zero phase should be
activated (AB = 00) until CMPTR goes high. It is
absolutely critical that this phase be terminated
immediately so that overshoot is not allowed to occur in
the opposite direction. At this point, it can be assured
that the integrator is near zero. Auto-zero should be
entered (AB = 01) and the TC5XX held in this state until
the next cycle is begun (see Figure 8-2).
FIGURE 8-2:
Overshoot.
8.7
Using the TC510/TC514
8.7.1
NEGATIVE SUPPLY VOLTAGE
CONVERTER (TC510, TC514)
A capacitive charge pump is employed to invert the
voltage on VDD for negative bias within the TC510/
TC514. This voltage is also available on the VOUT– pin
to provide negative bias elsewhere in the system. Two
external capacitors are required to perform the
conversion.
Timing is generated by an internal state machine driven
from an on-board oscillator. During the first phase,
capacitor CF is switched across the power supply and
charged to VS+. This charge is transferred to capacitor
COUT– during the second phase. The oscillator
normally runs at 100 kHz to ensure minimum output
ripple. This frequency can be reduced by placing a
capacitor from OSC to VDD. The relationship between
the capacitor value is shown in Section 2.0 “Typical
.
8.7.2
ANALOG INPUT MULTIPLEXER
(TC514)
The TC514 is equipped with a four-input differential
analog multiplexer. Input channels are selected using
select inputs (A1, A0). These are high-true control
signals (i.e., channel 0 is selected when (A1, A0 = 00).
Integrator
Output
Comparator
Output Comp
Integrate
Phase
De-integrate Phase
Integrator
Zero Phase
Zero
Crossing
Overshoot
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| TC510COI | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Precision Analog Front Ends with Dual Slope ADC |
| TC510COI713 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Precision Analog Front Ends with Dual Slope ADC |
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| TC510CPE | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Precision Analog Front Ends |
| TC510CPF | 功能描述:電信線路管理 IC Prec Analog Frnt End RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
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