Datasheet

AD1877–SPECIFICATIONS
REV. A
–2–
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages 5.0 V
Ambient Temperature 25 °C
Input Clock (F
CLKIN
) [256 × F
S
] 12.288 MHz
Input Signal 991.768 Hz
–0.5 dB Full Scale
Measurement Bandwidth 23.2 Hz to 19.998 kHz
Load Capacitance on Digital Outputs 50 pF
Input Voltage HI (V
IH
) 2.4 V
Input Voltage LO (V
IL
) 0.8 V
Master Mode, Data I
2
S-Justified (Refer to Figure 14).
Device Under Test (DUT) bypassed and decoupled as shown in Figure 3.
DUT is antialiased and ac coupled as shown in Figure 2. DUT is calibrated.
Values in bold typeface are tested, all others are guaranteed but not tested.
ANALOG PERFORMANCE
Min Typ Max Unit
Resolution 16 Bits
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
Without A-Weight Filter 87 92 dB
With A-Weight Filter 90 94 dB
Signal to (THD + Noise) 86.5 90 dB
Signal to THD 92 94 dB
Analog Inputs
Single-Ended Input Range (± Full Scale)* V
REF
– 1.55 V
REF
V
REF
+ 1.55 V
Input Impedance at Each Input Pin 32 kΩ
V
REF
2.05 2.25 2.55 V
DC Accuracy
Gain Error ±0.5 ⴞ2.5 %
Interchannel Gain Mismatch 0.01 dB
Gain Drift 115 ppm/°C
Midscale Offset Error (After Calibration) ± 3 ⴞ20 LSBs
Midscale Drift 15 ppm/°C
Crosstalk (EIAJ Method) –90 –99 dB
*V
IN
p-p = V
REF
× 1.333.