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ADMCF341 数据表(PDF) 2 Page - Analog Devices

部件名 ADMCF341
功能描述  28-Lead Flash and ROM Memory, Mixed-Signal DSPs with Enhanced Analog Front End
PDF  36 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADMCF341 数据表(HTML) 2 Page - Analog Devices

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REV. A
–2–
ADMC(F)341–SPECIFICATIONS
ANALOG-TO-DIGITAL CONVERTER
Parameter
Min
Typ
Max
Unit
Conditions/Comments
Signal Input
0.3
3.5
V
VAUX0, VAUX1, VAUX2
Resolution
1
12
Bits
Linearity Error
2
3
4
Bits
Zero Offset
3
–32
0
+7
mV
Comparator Delay
600
ns
ADC High Level Input Current
2
+10
µAV
IN = 3.5 V
ADC Low Level Input Current
2
–10
µAVIN = 0.0 V
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.
ISENSE AMPLIFIER–TRIP
Parameter
Min
Typ
Max
Unit
Conditions/Comments
ISENSE Signal Operating Range
–400
+400
mV
ISENSE Signal Input Range
–800
+800
mV
ISENSE Gain
–2.6
–2.51
–2.34
%
VIN = –400 mV to +400 mV
ISENSE Gain Channel Matching
5.5
%
VIN = –400 mV to +400 mV
ISENSE Gain Stability
1
0.8
%
VIN = –400 mV to +400 mV
ISENSE Linearity
2
89
Bits
ISENSE Internal Offset Voltage
2
1.68
1.87
2.1
V
ISENSE Internal Offset Stability
2
2.1
%
ISENSE Signal-to-Noise Ratio (SNRD)
3
51
dB
ISENSE Signal-to-Noise Ratio Less Distortion
54
dB
(SNR)3
ISENSE Total Harmonic Distortion
3
–53
dB
ISENSE Input Current
–200
+10
µAVIN = –400 mV to +400 mV
ISENSE Input Resistance
11.5
k
Ω
TRIP Threshold Low
–690
–430
mV
TRIP Threshold High
+430
+690
mV
TRIP Minimum Pulsewidth4
5
µs
NOTES
1Variation of gain with V
DD and temperature.
2V
IN = –400 mV to +400 mV.
3f
IN = 1 kHz sine wave, VIN = –400 mV to +400 mV, fS = 4 kHz.
4High or low trip threshold.
Specifications subject to change without notice.
CURRENT SOURCE1
Parameter
Min
Typ
Max
Unit
Conditions/Comments
Programming Resolution
3
Bits
Tuned Current
2
91
100
109
µA
NOTES
1For ADC calibration.
20.3 V to 3.5 V I
CONST voltage.
Specifications subject to change without notice.
(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.)



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