Datasheet

ADS8319
SLAS600A –MAY 2008–REVISED SEPTEMBER 2013 www.ti.com
SPECIFICATIONS (continued)
T
A
= –40°C to 85°C, +VA = 5 V, +VBD = 5 V to 2.375 V, V
ref
= 4 V, f
SAMPLE
= 500 kHz (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC CHARACTERISTICS
V
IN
0.4 dB below FS at 1 kHz, V
ref
= 5 V –111
THD Total harmonic distortion
(5)
V
IN
0.4 dB below FS at 10 kHz, V
ref
= 5 V –106 dB
V
IN
0.4 dB below FS at 100 kHz, V
ref
= 5 V –89
ADS8319IB V
IN
0.4 dB below FS at 1 kHz, V
ref
= 5 V 92
V
IN
0.4 dB below FS at 1 kHz, V
ref
= 5 V 93.9
SNR Signal-to-noise ratio dB
V
IN
0.4 dB below FS at 10 kHz, V
ref
= 5 V 93.6
V
IN
0.4 dB below FS at 100 kHz, V
ref
= 5 V 92.2
V
IN
0.4 dB below FS at 1 kHz, V
ref
= 5 V 93.8
SINAD Signal-to-noise + distortion V
IN
0.4 dB below FS at 10 kHz, V
ref
= 5 V 93.4 dB
V
IN
0.4 dB below FS at 100 kHz, V
ref
= 5 V 87.4
V
IN
0.4 dB below FS at 1 kHz, V
ref
= 5 V 113
SFDR Spurious free dynamic range V
IN
0.4 dB below FS at 10 kHz, V
ref
= 5 V 107 dB
V
IN
0.4 dB below FS at 100 kHz, V
ref
= 5 V 90
–3dB Small signal bandwidth 15 MHz
EXTERNAL REFERENCE INPUT
V
ref
Input range 2.25 4.096 VDD+0.1 V
Reference input current
(6)
During conversion 250 μA
POWER SUPPLY REQUIREMENTS
+VBD 2.375 3.3 5.5 V
Power supply
voltage
+VA 4.5 5 5.5 V
Supply current +VA 500-kHz Sample rate 3.6 4.5 mA
P
VA
Power dissipation +VA = 5 V, 500-kHz Sample rate 18 22.5 mW
IVA
pd
Device power-down current
(7)
+VA = 5 V 50 300 nA
LOGIC FAMILY CMOS
V
IH
I
IH
= 5 μA +(0.7×VBD) +V
BD
+0.3 V
V
IL
I
IL
= 5 μA –0.3 +(0.3×VBD) V
Logic level
V
OH
I
OH
= 2 TTL loads +V
BD
–0.3 +V
BD
V
V
OL
I
OL
= 2 TTL loads 0 0.4 V
TEMPERATURE RANGE
T
A
Operating free-air temperature –40 85 °C
(5) Calculated on the first nine harmonics of the input frequency
(6) Can vary ±20%
(7) Device automatically enters power-down state at the end of every conversion, and continues to be in power-down state as long as it is
in acquistion phase.
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