Datasheet

REV. 0
AD1955
–3–
DIGITAL I/O (–40C to +85C, unless otherwise noted.)
Parameter Min Typ Max Unit
Input Voltage HI (V
IH
) 2.2 V
Input Voltage LO (V
IL
) 0.8 V
Input Leakage (I
IH
@ V
IH
= 2.4 V) –3+3µA
Input Leakage (I
IL
@ V
IL
= 0.8 V) –3+3µA
High Level Output Voltage (V
OH
) I
OH
= 1 mA 2.4 V
Low Level Output Voltage (V
OL
) I
OL
= 1 mA 0.4 V
Input Capacitance 20 pF
Specifications subject to change without notice.
TEMPERATURE
Parameter Min Typ Max Unit
Specifications Guaranteed 25 °C
Functionality Guaranteed –40 +85 °C
Storage –55 +125 °C
Specifications subject to change without notice.
POWER
Parameter Min Typ Max Unit
SUPPLIES
Voltage, Digital 4.50 5 5.50 V
Voltage, Analog 4.50 5 5.50 V
Analog Current 20 mA
Analog Current—Reset 20 mA
Digital Current 22 mA
Digital Current—Reset 2 mA
DISSIPATION
Operation—Both Supplies 210 mW
Operation—Analog Supply 100 mW
Operation—Digital Supply 110 mW
POWER SUPPLY REJECTION RATIO
1 kHz 300 mV p-p Signal at Analog Supply Pins –77 dB
20 kHz 300 mV p-p Signal at Analog Supply Pins –72 dB
Specifications subject to change without notice.
DIGITAL FILTER CHARACTERISTICS
Stop-Band
Sample Rate (kHz) Pass Band (kHz) Stop Band (kHz) Attenuation (dB) Pass-Band Ripple (dB)
44.1 DC–20 24.1–328.7 110 ± 0.0002
48 DC–21.8 26.23–358.28 110 ± 0.0002
96 DC–39.95 56.9–327.65 115 ± 0.0005
192 DC–87.2 117–327.65 95 0/–0.04 (DC – 21.8 kHz)
0/–0.5 (DC – 65.4 kHz)
0/–1.5 (DC – 87.2 kHz)
Specifications subject to change without notice.