參數(shù)資料
型號: PKD01BIEP
廠商: ANALOG DEVICES INC
元件分類: 模擬信號調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDIP14
封裝: PLASTIC, DIP-14
文件頁數(shù): 9/18頁
文件大小: 402K
代理商: PKD01BIEP
REV. A
PKD01
–17–
PKD01
A
B
C
LOGIC
GND
ANALOG
GND
–15V
+15V
VOUT
5V
1ms
2V
INPUT
RESET
OUTPUT
PEAK
DETECT
NOTES:
RESET VOLTAGE = –1.0V
TRACE 1 = 2V/DIV
TRACE 2 = 5V/DIV
TRACE 3 = 2V/DIV
SW-201
–15V +15V
VRS1
VRS2
VRS3
VRS4
VIN
A1
A2
A3
A4
PK DET/RST
Figure 21. Positive Peak Detector with Selectable Reset Voltage
PKD01
D1
CH
DAC08
C
A
B
DET
RAMP START
PULSE
BUFFERED
RAMP
OUTPUT
RAMP SLOPE
SELECTION
I
B1
B8
R > 20k
REF-01
15V
A0 A1 A2
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
MUX-08
AMPLITUDE
SELECTION
LOGIC
RAMP
AMPLITUDE
SLOPE =
I0
C
~0.5V/ s
SLOPE =
I1
C
RAMP
AMPLITUDE
RAMP
START
PULSE
0
NOTES:
1. NEGATIVE SLOPE OF RAMP IS SET BY DAC08 OUTPUT CURRENT.
2. DAC08 IS A DIGITALLY CONTROLLED CURRENT GENERATOR.
THE MAXIMUM FULL-SCALE CURRENT MUST BE LESS THAN 0.5mA.
RST
Figure 22. Programmable Low Frequency Ramp Generator
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