TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, +VCC = +5V, fSAMPLE = 500kHz, fCLK = 16 • fSAMPLE, and internal +2.5V reference, unless otherwise specified.
PEAK-TO-PEAK NOISE
vs EXTERNAL REFERENCE VOLTAGE
CHANGE END-POINT ERRORS
vs EXTERNAL REFERENCE VOLTAGE
0.90
0.85
0.80
0.75
0/70
0.65
0.60
0.55
0.50
4.0
3.0
Negative Full-Scale Error
2.0
1.0
0.0
–1.0
–2.0
–3.0
–4.0
–5.0
Positive Full-Scale Error
and Bipolar Offset Error
2
2.1
2.2
2.3
2.4
2.5
250
250
2.2
2.4
2.6
2.8
3.0
1M
250
External Reference Voltage (V)
External Reference Voltage (V)
POWER SUPPLY REJECTION RATIO
vs POWER SUPPLY RIPPLE FREQUENCY
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 977Hz, –0.2dB)
0
–20
30
25
20
15
10
5
–40
–60
–80
–100
–120
0
0
50
100
150
200
1
10
100
1k
10k
100k
Power Supply Ripple Frequency (Hz)
Frequency (kHz)
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 9.77kHz, –0.2dB)
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 99.7kHz, –0.2dB)
0
–20
0
–20
–40
–40
–60
–60
–80
–80
–100
–120
–100
–120
0
50
100
150
200
0
50
100
150
200
Frequency (kHz)
Frequency (kHz)
®
5
ADS7835