Datasheet

ADCS7476, ADCS7477, ADCS7478
SNAS192F –APRIL 2003–REVISED MARCH 2013 www.ti.com
ADCS7476/ADCS7477/ADCS7478 Specifications
(1)
ADCS7477 Converter Electrical
Characteristics (continued)
The following specifications apply for V
DD
= +2.7V to 5.25V, f
SCLK
= 20 MHz, f
SAMPLE
= 1 MSPS unless otherwise noted.
Boldface limits apply for T
A
= −40°C to +85°C: all other limits T
A
= 25°C, unless otherwise noted.
Symbol Parameter Conditions Typical Limits Units
V
OL
Output Low Voltage I
SINK
= 200 µA 0.4 V (max)
I
OL
TRI-STATE Leakage Current ±10 µA (max)
C
OUT
TRI-STATE Output Capacitance 2 4 pF (max)
Output Coding Straight (Natural) Binary
AC ELECTRICAL CHARACTERISTICS
f
SCLK
Clock Frequency 20 MHz (max)
40 % (min)
DC SCLK Duty Cycle
60 % (max)
t
TH
Track/Hold Acquisition Time 400 ns (max)
f
RATE
Throughput Rate See USING THE ADCS7476/77/78 1 MSPS (max)
t
AD
Aperture Delay 3 ns
t
AJ
Aperture Jitter 30 ps
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