ADMC328 Просмотр технического описания (PDF) - Analog Devices
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ADMC328 Datasheet PDF : 32 Pages
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ADMC328–SPECIFICATIONS (VDD = +5 V ؎ 5%, GND = 0 V, TA = –40؇C to +105؇C for ADMC328Y, TA = –40؇C to
+125؇C for ADMC328T, CLKIN = 10 MHz, unless otherwise noted)
ANALOG-TO-DIGITAL CONVERTER
Parameter
Min Typ Max
Unit
Signal Input
Resolution1
Linearity Error2
Zero Offset2
Channel-to-Channel Comparator Match2
Comparator Delay
ADC Hi-Level Input Current2
ADC Lo-Level Input Current2
0.3
3.5
V
–0.4
0
V
12
Bits
2
4
Bits
–20 0
+20
mV
20
mV
600
ns
10
µA
–10
µA
NOTES
1Resolution varies with PWM switching frequency (double update mode) 78.1 kHz = 8 bits, 4.9 kHz = 12 bits.
22.44 kHz sample frequency, V1, V2, VAUX0, VAUX1, VAUX2.
Specifications subject to change without notice.
Conditions/Comments
V1, V2, VAUX0, VAUX1, VAUX2
ISENSE
VIN = 3.5 V
VIN = 0.0 V
ELECTRICAL CHARACTERISTICS
Parameter
VIL Lo-Level Input Voltage
VIH Hi-Level Input Voltage
VOL Low Level Output Voltage1
VOL Low Level Output Voltage2
VOH High Level Output Voltage
IIL
Low Level Input Current3
IIL
Low Level Input Current
IIH High Level Input Current4
IIH High Level Input Current
IOZH Hi-Level Three-State Leakage Current5
IOZL Lo-Level Three-State Leakage Current5
IIL
Lo-Level PWMTRIP Current
IDD Supply Current (Idle)6
IDD Supply Current (Dynamic)6
NOTES
1Output pins PIO0–PIO8, AH, AL, BH, BL, CH, CL.
2XTAL Pin.
3Internal Pull-Up, RESET.
4Internal Pull-Down, PWMTRIP, PIO0–PIO8.
5Three-stateable pins DT1, RFS1, TFS1, SCLK1.
6Outputs not Switching.
Specifications subject to change without notice.
CURRENT SOURCE1
Min Typ Max
0.8
2
0.4
0.8
4
–120
–10
90
10
90
–10
–10
32
55
Unit
V
V
V
V
V
µA
µA
µA
µA
µA
µA
µA
mA
mA
Conditions/Comments
IOL = 2 mA
IOL = 2 mA
IOH = –0.5 mA
VIN = 0 V
VIN = 0 V
VIN = VDD
VIN = VDD
VIN = VDD
VIN = 0
@ VDD = Max, VIN = 0 V
Parameter
Programming Resolution
Default Current2
Tuned Current
NOTES
1For ADC Calibration.
20.3 V to 3.5 V ICONST Voltage.
Specifications subject to change without notice.
Min Typ Max
3
70
83
95
95
100 105
Unit
Bits
µA
µA
Conditions/Comments
ICONST_TRIM = 0x00
–2–
REV. B
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