AD7143ACPZ Analog Devices Inc, AD7143ACPZ Datasheet - Page 35

• Manufacturer Part Number: AD7143ACPZ
• Description: IC, CDC, 16BIT, SMD, LFCSP-16, 7143
• Manufacturer: Analog Devices Inc

Specifications of AD7143ACPZ

• Supply Voltage Range: 2.6V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LFCSP
• No. Of Pins: 16
• Svhc: No SVHC (18-Jun-2010)
• Package / Case: LFCSP
• Base Number: 7143
• Ic Function: Programmable Controller For Capacitance Touch Sensors
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DETAILED REGISTER DESCRIPTIONS
BANK 1 REGISTERS
All addresses and default values are expressed in hexadecimal format.
Table 16. PWR_CONTROL Register
Address
0x000
Data Bit
[1:0]
[3:2]
[7:4]
[9:8]
[10]
[11]
[12]
[13]
[15:14]
0
0
0
0
0
0
0
0
0
Default
Type
R/W
LP_CONV_DELAY
SEQUENCE_STAGE_NUM
DECIMATION
SW_RESET
INT_POL
EXCITATION_SOURCE
Unused
CDC_BIAS
Name
POWER_MODE
Rev. 0 | Page 35 of 56
Operating modes
00 = full power mode (normal operation, CDC conversions
approximately every 25 ms)
01 = full shutdown mode (no CDC conversions)
10 = low power mode (automatic wake-up operation)
11 = full shutdown mode (no CDC conversions)
Low power mode conversion delay
00 = 200 ms
01 = 400 ms
10 = 600 ms
11 = 800 ms
Number of stages in sequence (N + 1)
0000 = 1 conversion stage in sequence
0001 = 2 conversion stages in sequence
……
Maximum value = 1011 = 12 conversion stages per sequence
00 = decimate by 256
01 = decimate by 128
10 = do not use this setting
11 = do not use this setting
Software reset control (self-clearing)
1 = resets all registers to default values
Interrupt polarity control
0 = active low
1 = active high
Excitation source control for Pin 15
0 = enable output
1 = disable output
Set unused register bits = 0
CDC bias current control
00 = normal operation
01 = normal operation + 20%
10 = normal operation + 35%
11 = normal operation + 50%
Description
ADC decimation factor
AD7143