Datasheet

Data Sheet AD7609
Rev. A | Page 15 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
–160
–140
–120
–100
–80
–60
–40
–20
0
0 20k 40k 60k 80k 100k
SNR (dB)
INPUT FREQUENCY (Hz)
AV
CC
, V
DRIVE
= 5V
INTERNAL REFERENCE
±10V RANGE
f
SAMPLE
= 200 kSPS
f
IN
= 1kHz
16384 POINT FFT
SNR = 91.52dB
THD = –111.05dB
09760-008
Figure 8. FFT Plot, ±10 V Range
–160
–140
–120
–100
–80
–60
–40
–20
0
0 20k 40k 60k 80k 100k
AMPLITUDE (dB)
INPUT FREQUENCY (Hz)
AV
CC
, V
DRIVE
= 5V
INTERNAL REFERENCE
±5V RANGE
f
SAMPLE
= 200k
SPS
f
IN
= 1kHz
16,384 POINT FFT
SNR = 91.12dB
THD = –109.77dB
09760-009
Figure 9. FFT Plot, ±5 V Range
–160
–140
–120
–100
–80
–60
–40
–20
0
0 1 2 3 4 5 6
AMPLITUDE (dB)
INPUT FREQUENCY (kHz)
09760-109
AV
CC
, V
DRIVE
= 5V
INTERNAL REFERENCE
±10V RANGE
f
SAMPLE
= 12.5kSPS
f
IN
= 1Hz
8192 POINT FFT
SNR = 100.71dB
THD: –111.74dB
Figure 10. FFT Plot, ±10 V Range
–3
–2
–1
0
1
2
3
0
32,768
INL (LSB)
CODE
65,536 98,304
131,072 163,840 196,608 229,376
±10V RANGE
AV
CC
, V
DRIVE
= 5V
T
A
= 25°C
f
SAMPLE
= 200 kSPS
WCP INL = 1.69 LSB
WCN INL = –1.3 LSB
09760-010
Figure 11. Typical INL, ±10 V Range
0
32,768
CODE
65,536 98,304
131,072 163,840 196,608 229,376
09760-011
–1.0
0
1.0
0.8
0.6
0.4
0.2
–0.2
–0.4
–0.6
–0.8
DNL (LSB)
±10V RANGE
AV
CC
, V
DRIVE
= 5V
T
A
=
25°C
f
SAMPLE
= 200 kSPS
WCP DNL = 0.33 LSB
WCN DNL = –0.32 LSB
Figure 12. Typical DNL, ±10 V Range
–3
–2
–1
0
1
2
3
0
32,768
INL (LSB)
CODE
65,536 98,304
131,072 163,840
196,608 229,376
±5V RANGE
AV
CC
, V
DRIVE
= 5V
T
A
= 25°C
f
SAMPLE
=
200 kSPS
WCP INL = 1.56 LSB
WCN INL = –1.22 LSB
09760-012
Figure 13. Typical INL, ±5 V Range