AD1835 Ver la hoja de datos (PDF) - Analog Devices
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AD1835 Datasheet PDF : 24 Pages
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AD1835–SPECIFICATIONS
TEST CONDITIONS
Supply Voltages (AVDD, DVDD)
Ambient Temperature
Input Clock
ADC Input Signal
DAC Input Signal
Input Sample Rate (fS)
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
5.0 V
25°C
12.288 MHz (256 × fS Mode)
1.0078125 kHz, –1 dBFS (Full Scale)
1.0078125 kHz, 0 dBFS (Full Scale)
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 kΩ
Performance of all channels is identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation
specifications).
Parameter
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter
A-Weighted
Total Harmonic Distortion + Noise (THD + N)
Interchannel Isolation
Interchannel Gain Mismatch
Analog Inputs
Differential Input Range (± Full Scale)
Common-Mode Input Voltage
Input Impedance
Input Capacitance
VREF
DC Accuracy
Gain Error
Gain Drift
100
101
–2.828
24
103
105
–95
100
0.025
2.25
4
15
2.25
±5
35
–88.5
+2.828
Bits
dB
dB
dB
dB
dB
V
V
kΩ
pF
V
%
ppm/ºC
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
No Filter
103
105
With A-Weighted Filter
105
108
Total Harmonic Distortion + Noise
–95
–90
Interchannel Isolation
110
DC Accuracy
Gain Error
± 4.0
Interchannel Gain Mismatch
0.025
Gain Drift
200
Interchannel Crosstalk (EIAJ Method)
–120
Interchannel Phase Deviation
± 0.1
Volume Control Step Size (1023 Linear Steps)
0.098
Volume Control Range (Maximum Attenuation)
60
Mute Attenuation
–100
De-emphasis Gain Error
± 0.1
Full-Scale Output Voltage at Each Pin (Single-Ended)
1.0 (2.8)
Output Resistance at Each Pin
180
Common-Mode Output Voltage
2.25
dB
dB
dB
dB
%
dB
ppm/°C
dB
Degrees
%
dB
dB
dB
V rms (V p-p)
Ω
V
ADC DECIMATION FILTER, 48 kHz*
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
21.77
kHz
± 0.01
dB
26.23
kHz
120
dB
910
µs
–2–
REV. B
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