AD7147PACPZ-RL Analog Devices Inc, AD7147PACPZ-RL Datasheet - Page 20
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AD7147PACPZ-RL
Manufacturer Part Number
AD7147PACPZ-RL
Description
CAPACITANCE TO DIGITAL CONVERTER
Manufacturer
Analog Devices Inc
Series
CapTouch™r
Type
Capacitive Sensor Controllerr
Datasheet
1.AD7147ACPZ-1500RL7.pdf
(72 pages)
Specifications of AD7147PACPZ-RL
Resolution (bits)
16 b
Data Interface
I²C
Voltage Supply Source
Single Supply
Voltage - Supply
2.6 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sampling Rate (per Second)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7147PACPZ-RL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
AD7147
CDC CONVERSION
CDC CONVERSION
RECALIBRATION
RECALIBRATION
CALIBRATION
CALIBRATION
(INTERNAL)
DETECTION
(INTERNAL)
(INTERNAL)
(INTERNAL)
DETECTION
(INTERNAL)
(INTERNAL)
SEQUENCE
SEQUENCE
PROXIMITY
(INTERNAL)
PROXIMITY
(INTERNAL)
COUNTER
Figure 33. Example of Low Power Mode Proximity Detection with Forced Recalibration (LP_PROXIMITY_CNT = 4 and LP_PROXIMITY_RECAL = 40)
Figure 32. Example of Full Power Mode Proximity Detection with Forced Recalibration (FP_PROXIMITY_CNT = 1 and FP_PROXIMITY_RECAL = 40)
NOTES
1. SEQUENCE CONVERSION TIME
2.
3.
4.
NOTES
1. SEQUENCE CONVERSION TIME
2.
3.
4.
t
t
t
t
t
t
CALDIS
RECAL_TIMEOUT
RECAL
CALDIS
RECAL_TIMEOUT
RECAL
USER APPROACHES
USER APPROACHES
= 2 ×
= 2 ×
=
=
SENSOR
SENSOR
t
t
CONV_FP
CONV_LP
t
t
CONV_FP
CONV_LP
=
=
t
t
CONV_FP
CONV_LP
× FP_PROXIMITY_CNT × 16.
× LP_PROXIMITY_CNT × 4.
CALIBRATION DISABLED
.
CALIBRATION DISABLED
.
SENSOR AREA
SENSOR AREA
USER LEAVES
USER LEAVES
× FP_PROXIMITY_RECAL.
× LP_PROXIMITY_RECAL.
t
t
CONV_FP
CONV_LP
16
16
t
t
CALDIS
CALDIS
=
(SEE TABLE 10).
t
CONV_FP
+ LP_CONV_DELAY.
Rev. B | Page 20 of 72
30
30
MEASURED CDC VALUE > STORED AMBIENT
MEASURED CDC VALUE > STORED AMBIENT
BY PROXIMITY_RECAL _LVL
BY PROXIMITY_RECAL _LVL
RECALIBRATION TIMEOUT
RECALIBRATION TIMEOUT
t
t
RECAL_TIMEOUT
RECAL_TIMEOUT
t
t
RECAL
RECAL
70
70
CALIBRATION ENABLED
CALIBRATION ENABLED
t
t
CONV_FP
CONV_LP