參數(shù)資料
型號(hào): TC514CPJ
廠商: Microchip Technology
文件頁數(shù): 4/38頁
文件大?。?/td> 0K
描述: IC ANALOG FRONT END 17BIT 28DIP
標(biāo)準(zhǔn)包裝: 15
位數(shù): 17
通道數(shù): 4
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: 28-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 28-DIP
包裝: 管件
TC500/A/510/514
DS21428E-page 12
2008 Microchip Technology Inc.
FIGURE 5-1:
Typical Dual Slope A/D Converter System Timing.
Auto-zero
Integrate
Full-scale Input
Reference
De-integrate
Overshoot Integrator
Output
Zero
Converter Status
TTIME
Integrator
Voltage VINT
Comparator
Output
AB Inputs
Controller
Operation
Notes:
Comparator Delay
Begin Conversion with
Auto-Zero Phase
(Positive Input Shown)
Sample Input Polarity
The length of this phase is chosen almost arbitrarily
but needs to be long enough to null out worst case errors
(see text).
Minimizing
Overshoot
will Minimize
I.O.Z. Time
Ready for Next
Conversion
(Auto-Zero is
Idle State)
Time Input
Integration
Phase
Capture
De-integration
Time
Integrator
Output
Zero Phase
Complete
Undefined
A = 0
B = 1
A = 1
0
For Negative Input
1
For Positive Input
B = 0
B = 1
B = 0
A = 1
A = 0
Typically = TINT
TINT
0
A
B
Comparator Delay +
Processor Latency
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