Datasheet

ADS7800
5
SBAS001A
www.ti.com
0
–20
–40
–60
–80
–100
–120
0 165
Frequency (kHz)
Magnitude (dB)
50 100 150
0
–20
–40
–60
–80
–100
–120
0 165
Frequency (kHz)
Magnitude (dB)
50 100 150
80
60
40
20
0
1
SIGNAL/(NOISE + DISTORTION) vs
FREQUENCY AND AMPLITUDE
10 50 150
Input Frequency (kHz)
Signal/(Noise + Distortion) (dB)
0dB
–20dB
–40dB
–60dB
95
90
85
80
75
70
65
1
SPURIOUS FREE DYNAMIC RANGE vs
INPUT FREQUENCY AND AMBIENT TEMPERATURE
10 50 150
Input Frequency (kHz)
Spurious Free Dynamic Range (dB)
–55°C
+25°C
+125°C
75
70
65
1
SIGNAL/(NOISE + DISTORTION) vs
INPUT FREQUENCY AND AMBIENT TEMPERATURE
10 50 150
Input Frequency (kHz)
Signal/(Noise + Distortion) (dB)
–55°C
+
2
5
°C
+125°C
FREQUENCY SPECTRUM (10kHz f
IN
) FREQUENCY SPECTRUM (50kHz f
IN
)
f
IN
= 10kHz
f
SAMPLING
= 330kHz
T
A
= 25°C
f
IN
= 50kHz
f
SAMPLING
= 330kHz
T
A
= 25°C
TYPICAL PERFORMANCE CURVES
At +V
S
= +5V, –V
S
= –15V, and T
A
= +25°C, unless otherwise noted. All plots use 1024 point FFTs.
95
90
85
80
75
70
65
1
SPURIOUS FREE DYNAMIC RANGE vs
INPUT FREQUENCY AND NEGATIVE SUPPLY VOLTAGE
10 50 150
Input Frequency (kHz)
Spurious Free Dynamic Range (dB)
–V = –15V
S
S
–V = –12V