Datasheet

6
®
ADS7825
20.4
20.2
20
19.8
19.6
–50 –25 0 25 50 75
Temperature (°C)
Conversion Time (µs)
CONVERSION TIME vs TEMPERATURE
100
0.2
0
–0.2
–25–50 0 25 50 75 100
0.2
0
–0.2
2
1
0
–1
–2
BPZ Error
+FS Error
–FS Error
ENDPOINT ERRORS
Temperature (°C)
mV From Ideal
Percent
From Ideal
Percent
From Ideal
110
105
100
95
90
85
80
–110
–105
–100
–95
–90
–85
–80
–50 –25 0 25 50 75
Temperature (°C)
SFDR, SINARD, and SNR (dB)
THD (dB)
A. C. PARAMETERS vs TEMPERATURE
(f
IN
= 1kHz, –0.1dB)
100
SFDR
SNR
THD
SINAD
3
2
1
0
–1
–2
–3
0 8192 16384 24576 32768 40960 49152 57344 65535
Decimal Code
16-Bit LSBs
3
2
1
0
–1
–2
–3
0 8192 16384 24576 32768 40960 49152 57344 65535
Decimal Code
16-Bit LSBs
All Codes INL
All Codes DNL
TYPICAL PERFORMANCE CURVES (CONT)
At T
A
= +25°C, f
S
= 40kHz, V
S1
= V
S2
= +5V, using internal reference, unless otherwise noted.
POWER SUPPLY RIPPLE SENSITIVITY
INL/DNL DEGRADATION PER LSB OF P-P RIPPLE
Power Supply Ripple Frequency (Hz)
10
1
10
2
10
3
10
4
10
5
10
6
10
7
1
10
–1
10
–2
10
–3
10
–4
10
–5
Linearity Degradation (LSB/LSB)
INL
DNL
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
–50 –25 0 25 50 75
Temperature (°C)
Internal Reference (V)
INTERNAL REFERENCE VOLTAGE
vs TEMPERATURE
100