ADMCF340 Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
ADMCF340 Datasheet PDF : 40 Pages
| |||
ADMCF340
ANALOG-TO-DIGITAL
CONVERTER
(VDD = 5%, GND = 0 V, TA = –40؇C to +85؇C, CLKIN = 10 MHz, unless
otherwise noted.)
Parameter
Min
Typ
Max
Unit
Signal Input
Resolution1
Linearity Error2
Zero Offset3
Comparator Delay
ADC High Level Input Current2
ADC Low Level Input Current2
0.3
3.5
V
12
Bits
3
4
Bits
–32
0
+7
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, VAUX0, VAUX1, VAUX2
3Extrapolated point outside of operating range. 2.44 kHz sample frequency
Specifications subject to change without notice.
Conditions/Comments
VAUX0, VAUX1, VAUX2
VIN = 3.5 V
VIN = 0.0 V
ISENSE AMPLIFIER–TRIP
Parameter
Min
ISENSE Signal Operating Range
ISENSE Gain
ISENSE Gain Channel Matching
ISENSE Gain Stability1
ISENSE Linearity2
ISENSE Internal Offset Voltage2
ISENSE Internal Offset Stability2
ISENSE Signal-to-Noise Ratio (SNR)3
ISENSE Signal-to-Noise Ratio Less Distortion
(SNR)3
ISENSE Total Harmonic Distortion3
ISENSE Input Current
ISENSE Input Resistance
TRIP Threshold Low
TRIP Threshold High
TRIP Minimum Pulsewidth4
–400
–2.6
8
1.68
–200
–690
430
NOTES
1Variation of gain with VDD and temperature
2VIN = –400 mV to +400 mV.
3fIN = 1 kHz sine wave, VIN = –400 mV to +400 mV, fS = 4 kHz.
4High or low trip threshold
Typ
–2.51
0.8
9
1.87
2.1
51
54
–40
–53
11.5
5
Max
+400
–2.34
5.5
2.1
+10
–430
690
Unit
mV
%
%
%
Bits
V
%
dB
dB
dB
dB
µA
kΩ
mV
mV
µs
Conditions/Comments
VIN = –400 mV to +400 mV
VIN = –400 mV to +400 mV
VIN = –400 mV to +400 mV
VIN = –400 mV to +400 mV
CURRENT SOURCE1
Parameter
Programming Resolution
Tuned Current2
NOTES
1For ADC calibration
20.3 V to 3.5 V ICONST voltage
Min
Typ
Max
Unit
Conditions/Comments
3
Bits
91
100
109
µA
–2–
REV. 0
Share Link: 