AD1838A Analog Devices, AD1838A Datasheet - Page 2

• Manufacturer Part Number: AD1838A
• Description: 2 ADC, 6 DAC 96 Khz, 24-Bit Sigma Delta Codec
• Manufacturer: Analog Devices

AD1838A
TEST CONDITIONS
Supply Voltages (AVDD, DVDD)
Performance of all channels is identical (except for the Interchannel Gain Mismatch and Interchannel Phase Deviation speci-
fications).
Parameter
ANALOG-TO-DIGITAL CONVERTERS
DIGITAL-TO-ANALOG CONVERTERS
ADC DECIMATION FILTER, 48 kHz*
Ambient Temperature
Input Clock
DAC Input Signal
ADC Input Signal
Input Sample Rate (f
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
ADC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
Total Harmonic Distortion + Noise (THD + N)
Interchannel Isolation
Interchannel Gain Mismatch
Analog Inputs
V
DC Accuracy
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
Interchannel Isolation
DC Accuracy
Interchannel Phase Deviation
Volume Control Step Size (1023 Linear Steps)
Volume Control Range (Maximum Attenuation)
Mute Attenuation
De-emphasis Gain Error
Full-Scale Output Voltage at Each Pin (Single-Ended)
Output Resistance at Each Pin
Common-Mode Output Voltage
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
REF
No Filter
With A-Weighted Filter
48 kHz
96 kHz
Differential Input Range (± Full Scale)
Common-Mode Input Voltage
Input Impedance
Input Capacitance
Gain Error
Gain Drift
No Filter
With A-Weighted Filter (48 kHz and 96 kHz)
Total Harmonic Distortion + Noise (48 kHz and 96 kHz)
Gain Error
Interchannel Gain Mismatch
Gain Drift
–SPECIFICATIONS
S
)
5.0 V
25°C
12.288 MHz (256
1.0078125 kHz, 0 dBFS (Full Scale)
1.0078125 kHz, –1 dBFS
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 kΩ
–2–
f
S
Mode)
Min
100
–2.828
103
105
Typ
24
103
105
–95
–95
100
0.025
2.25
4
15
2.25
± 5
35
24
105
108
–95
110
± 4.0
0.025
200
± 0.1
0.098
60
–100
± 0.1
1.0 (2.8)
180
2.25
21.77
± 0.01
26.23
120
910
Max
–88.5
–87.5
+2.828
–90
Unit
Bits
dB
dB
dB
dB
dB
dB
V
V
kΩ
pF
V
%
ppm/ºC
Bits
dB
dB
dB
dB
%
dB
ppm/°C
Degrees
%
dB
dB
dB
V rms (V p-p)
Ω
V
kHz
dB
kHz
dB
µs
REV. A