EVAL-AD7147EBZ データシートの表示（PDF） - Analog Devices
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EVAL-AD7147EBZ
Analog Devices
EVAL-AD7147EBZ Datasheet PDF : 69 Pages
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AD7147A
SPECIFICATIONS
VCC = 2.6 V to 3.6 V, TA = −40oC to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
CAPACITANCE-TO-DIGITAL CONVERTER
Update Rate
8.73
9
17.46
18
34.9
36
Resolution
16
CINx Input Range
±8
No Missing Codes
16
CINx Input Leakage
25
Maximum Output Load
Total Unadjusted Error
Output Noise (Peak-to-Peak)
12
7
3
Output Noise (RMS)
1.1
0.8
0.5
CSTRAY Offset Range
20
CSTRAY Offset Resolution
0.32
Low Power Mode Delay Accuracy
ACSHIELD
Frequency
250
Output Voltage
0
Short-Circuit Source Current
10
Short-Circuit Sink Current
10
Maximum Output Load
LOGIC INPUTS (SDI, SCLK, CS, SDA, GPIO)
Input High Voltage, VIH
Input Low Voltage, VIL
Input High Current, IIH
Input Low Current, IIL
Hysteresis
0.7 × VDRIVE
−1
150
OPEN-DRAIN OUTPUTS (SCLK, SDA, INT)
Output Low Voltage, VOL
Output High Leakage Current, IOH
±0.1
LOGIC OUTPUTS (SDO, GPIO)
Output Low Voltage, VOL
Output High Voltage, VOH
GPO, SDO Floating State Leakage
Current
VDRIVE − 0.6
POWER
VCC
VDRIVE
ICC
2.6
3.3
1.65
0.8
1.1
1.2
1.6
15.5
2.3
Max Unit Test Conditions/Comments
9.27
18.54
37.1
20
±20
4
ms
ms
ms
Bits
pF
Bits
nA
pF
%
Codes
Codes
Codes
Codes
Codes
Codes
pF
pF
%
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
kHz
VCC
V
Oscillating
mA
mA
150 pF
Capacitance load on ACSHIELD to ground
V
0.4 V
μA
VIN = VDRIVE
1
μA
VIN = GND
mV
0.4 V
±1 μA
0.4 V
V
±1 μA
ISINK = −1 mA
VOUT = VDRIVE
ISINK = 1 mA, VDRIVE = 1.65 V to 3.6 V
ISOURCE = 1 mA, VDRIVE = 1.65 V to 3.6 V
Pin three-state, leakage measured to GND and VCC
3.6 V
3.6 V
Serial interface operating voltage
1
mA In full power mode, VCC + VDRIVE, Register 0x00, Bits[15:14] = 00
1.3
mA
In full power mode, VCC + VDRIVE, Register 0x00, Bits[15:14] = 01
1.5
mA
In full power mode, VCC + VDRIVE, Register 0x00, Bits[15:14] = 10
1.8
mA
In full power mode, VCC + VDRIVE, Register 0x00, Bits[15:14] = 11
24
μA
Low power mode, converter idle, VCC + VDRIVE, decimation = 256;
Register 0x00, Bits[15:14] = 01
10
μA
Full shutdown, VCC + VDRIVE, Register 0x00, Bits[15:14] = 01
Rev. B | Page 3 of 68
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