ADMC341 Просмотр технического описания (PDF) - Analog Devices
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ADMC341 Datasheet PDF : 36 Pages
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ADMC(F)341–SPECIFICATIONS
ANALOG-TO-DIGITAL CONVERTER (VDD = 5%, GND = 0 V. For ADMCF341, TA = –40؇C to +85؇C.
For ADMC341, TA = –40؇C to +125؇C. CLKIN = 10 MHz, unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
Conditions/Comments
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.
VAUX0, VAUX1, VAUX2
VIN = 3.5 V
VIN = 0.0 V
ISENSE AMPLIFIER–TRIP
Parameter
Min
ISENSE Signal Operating Range
ISENSE Signal Input 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 (SNRD)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
–800
–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.
Specifications subject to change without notice.
Typ
–2.51
0.8
9
1.87
2.1
51
54
–53
11.5
5
Max
+400
+800
–2.34
5.5
2.1
+10
–430
+690
Unit
mV
mV
%
%
%
Bits
V
%
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.
Specifications subject to change without notice.
Min
91
Typ
100
Max
3
109
Unit
Bits
µA
Conditions/Comments
–2–
REV. A
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