参数资料
型号: TC500IJE
厂商: Microchip Technology
文件页数: 4/38页
文件大小: 0K
描述: IC ANALOG FRONT END 16BIT 16CDIP
标准包装: 29
位数: 16
通道数: 1
功率(瓦特): 10mW
电压 - 电源,模拟: 5V
电压 - 电源,数字: 4.5 V ~ 7.5 V
封装/外壳: 16-CDIP(0.300",7.62mm)
供应商设备封装: 16-CDIP
包装: 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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