AD7147PACPZ-RL Analog Devices Inc, AD7147PACPZ-RL Datasheet - Page 3

• Manufacturer Part Number: AD7147PACPZ-RL
• Description: CAPACITANCE TO DIGITAL CONVERTER
• Manufacturer: Analog Devices Inc
• Series: CapTouch™r
• Type: Capacitive Sensor Controllerr

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

SPECIFICATIONS
V
Table 1.
Parameter
CAPACITANCE-TO-DIGITAL CONVERTER
AC
LOGIC INPUTS (SDI, SCLK, CS, SDA, GPIO)
OPEN-DRAIN OUTPUTS (SCLK, SDA, INT)
LOGIC OUTPUTS (SDO, GPIO)
POWER
CC
Update Rate
Resolution
CINx Input Range
No Missing Codes
CINx Input Leakage
Maximum Output Load
Total Unadjusted Error
Output Noise (Peak-to-Peak)
Output Noise (RMS)
C
C
Low Power Mode Delay Accuracy
Frequency
Output Voltage
Short-Circuit Source Current
Short-Circuit Sink Current
Maximum Output Load
V
V
I
I
Hysteresis
V
I
V
V
GPIO, SDO Floating State Leakage
V
V
I
SHIELD
IH
IL
OH
CC
STRAY
STRAY
IH
IL
OL
OL
OH
CC
DRIVE
= 2.6 V to 3.6 V, T
Input Low Current
Input High Current
Input Low Voltage
Output High Leakage Current
Input High Voltage
Output Low Voltage
Output Low Voltage
Output High Voltage
Current
Offset Range
Offset Resolution
A
= −40
o
C to +85°C, unless otherwise noted.
Min
8.73
17.46
34.9
16
0
0.7 × V
−1
V
2.6
1.65
DRIVE
− 0.6
DRIVE
Typ
9
18
36
16
±8
25
12
7
3
1.1
0.8
0.5
20
0.32
250
10
10
150
±0.1
3.3
0.9
15.5
2.3
Rev. B | Page 3 of 72
Max
18.54
37.1
20
3.6
7.5
9.27
±20
4
V
150
0.4
1
0.4
±1
0.4
±1
3.6
1
21.5
CC
Unit
ms
ms
ms
Bits
pF
Bits
nA
pF
%
Codes
Codes
Codes
Codes
Codes
Codes
pF
pF
%
kHz
V
mA
mA
pF
V
V
μA
μA
mV
V
μA
V
V
μA
V
V
mA
μA
μA
Test Conditions/Comments
12 conversion stages, decimation = 64
12 conversion stages, decimation = 128
12 conversion stages, decimation = 256
Guaranteed by design, but not production
tested
Capacitance load on CINx to ground
Decimation rate = 64
Decimation rate = 128
Decimation rate = 256
Decimation rate = 64
Decimation rate = 128
Decimation rate = 256
Percentage of 200 ms, 400 ms, 600 ms,
or 800 ms
Oscillating
Capacitance load on AC
V
V
I
V
I
I
Pin three-state, leakage measured to
GND and V
Serial interface operating voltage
In full power mode, V
Low power mode, converter idle, V
decimation = 256
Full shutdown, V
SINK
SINK
SOURCE
IN
IN
OUT
= V
= GND
= −1 mA
= 1 mA, V
= V
= 1 mA, V
DRIVE
DRIVE
CC
DRIVE
DRIVE
CC
= 1.65 V to 3.6 V
+ V
= 1.65 V to 3.6 V
CC
DRIVE
+ V
SHIELD
DRIVE
to ground
AD7147
CC
+ V
DRIVE
,