ADS7835E Datasheet, PDF (6/20 Pages) Texas Instruments – 12-Bit, High-Speed, Low Power Sampling ANALOG-TO-DIGITAL CONVERTER

TYPICAL PERFORMANCE CURVES (Cont.)
At T_A = +25°C, +V_CC = +5V, f_SAMPLE = 500kHz, f_CLK = 16 • f_SAMPLE, and internal +2.5V reference, unless otherwise specified.
75
73
71
69
67
65
63
1
SIGNAL-TO-NOISE and
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY
SNR
SINAD
10
100
Input Frequency (kHz)
1000
SPURIOUS FREE DYNAMIC RANGE and
TOTAL HARMONIC DISTORTION
vs INPUT FREQUENCY
90
85
SFDR
80
75
THD^T
70
T _{First nine harmonics}
of the input frequency
65
1
10
100
Input Frequency (kHz)
1000
CHANGE IN SIGNAL-TO-NOISE and
SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
0.5
0.4
f_IN = 10kHz, –0.2dB
0.3
0.2
0.1
SNR
0.0
–0.1
–0.2
SINAD
–0.3
–0.4
–0.5
–40 –20
0
20
40 60
80 100
Temperature (°C)
CHANGE IN SPURIOUS FREE DYNAMIC RANGE
and TOTAL HARMONIC DISTORTION
vs TEMPERATURE
2.0
1.5
f_IN = 10kHz, –0.2dB
1.0
0.5
THD∗
0.0
–0.5
–1.0
–1.5
–2.0
–40 –20
SFDR
∗First nine harmonics
of the input frequency
0
20
40
60
Temperature (°C)
80 100
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
0
CHANGE IN BIPOLAR OFFSET ERROR
vs SAMPLE RATE
100 200 300 400 500 600 700
Sample Rate (kHz)
®
ADS7835
6