AD1928 Просмотр технического описания (PDF) - Analog Devices
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AD1928 Datasheet PDF : 32 Pages
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AD1928
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply voltages (AVDD, DVDD)
Temperature range1
Master clock
Input sample rate
Measurement bandwidth
Word width
Load capacitance (digital output)
Load current (digital output)
High level input voltage
Low level input voltage
3.3 V
As specified in Table 1 and Table 2
12.288 MHz (48 kHz fS, 256 × fS mode)
48 kHz
20 Hz to 20 kHz
24 bits
20 pF
±1 mA or 1.5 kΩ to ½ DVDD supply
2.0 V
0.8 V
1 Functionally guaranteed at −40°C to +125°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at an ambient temperature of 25°C.
Table 1.
Parameter
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Dynamic Range
No Filter (RMS)
With A-Weighted Filter (RMS)
Total Harmonic Distortion + Noise
Full-Scale Input Voltage (Differential)
Gain Error
Interchannel Gain Mismatch
Offset Error
Gain Drift
Interchannel Isolation
CMRR
Input Resistance
Input Capacitance
Input Common-Mode Bias Voltage
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range
No Filter (RMS)
With A-Weighted Filter (RMS)
With A-Weighted Filter (Average)
Total Harmonic Distortion + Noise
Single-Ended Version
Full-Scale Output Voltage
Gain Error
Interchannel Gain Mismatch
Offset Error
Gain Drift
Conditions
All ADCs
20 Hz to 20 kHz, −60 dB input
−1 dBFS
100 mV rms, 1 kHz
100 mV rms, 20 kHz
20 Hz to 20 kHz, −60 dB input
0 dBFS
Two channels running
Eight channels running
Min Typ
24
98
100
−10
−0.25
−10
102
105
−96
1.9
0
100
−110
55
55
14
10
1.5
Max Unit
Bits
−87
+10
+0.25
+10
dB
dB
dB
V rms
%
dB
mV
ppm/°C
dB
dB
dB
kΩ
pF
V
98
104
dB
100
106
dB
108
dB
−92
dB
−86
−75
dB
0.88 (2.48)
V rms (V p-p)
−10
+10 %
−0.2
+0.2 dB
−25 −4
+25 mV
−30
+30 ppm/°C
Rev. 0 | Page 3 of 32
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