EVAL-CONTROLBRD2 AD [Analog Devices], EVAL-CONTROLBRD2 Datasheet - Page 7

• Manufacturer Part Number: EVAL-CONTROLBRD2
• Description: Differential Input, 1MSPS, 12-Bit ADC in ?SO-8 and S0-8
• Manufacturer: AD [Analog Devices]

REV. PrJ
PERFORMANCE CURVES
TPC 1 and TPC 2 show the typical FFT plots for the
AD7450 with V
pling frequency respectively and an input frequency of
300kHz.
TPC 2. AD7450 Dynamic Performance at 833ksps with
-100
-120
-100
-120
-20
-40
-60
-80
-20
-40
-60
-80
0
0
TPC 1. AD7450 Dynamic Performance at 1MSPS
0
0
8192 POINT FFT
FSAMPLE = 1MSPS
FIN = 300kHz
SINAD = 71.7dB
THD = -82.8dB
SFDR = -85.3dB
8192 POINT FFT
f
f
SINAD = 70.2dB
THD = -86dB
SFDR = -87.1dB
SAMPLE
IN
50
= 300kHz
50
= 833ksps
100
DD
100
of 5V and 3V, 1MHz and 833kHz sam-
150
with V
200
150
FREQUENCY (kHz)
FREQUENCY (kHz)
V
DD
PRELIMINARY TECHNICAL DATA
250
= 3V
DD
200
=5V
300
250
350
400
300
450
350
500
– 7 –
TPC 3 shows the signal-to-(noise+distortion) ratio
performance versus the analog input frequency for
various supply voltages while sampling at 1MSPS
(V
TPC 4 shows the power supply rejection ratio versus
supply ripple frequency for the AD7450. Here, a
200mV p-p sine wave is coupled onto the V
A 10nF decoupling capacitor was used on the supply
and a 1µF decoupling capacitor was used on V
TPC 4. Power Supply Rejection (see Terminology Sec-
tion) vs. Supply Ripple Frequency at 5V and 3V TBD
DD
= 5V±5%) and 833kSPS (V
TPC 3. SINAD vs Analog Input Frequency
0
0
0
0
0
0
0
0
for Various Supply Voltages TBD
0
0
0
0
TITLE
TITLE
0
0
DD
= 3V±10%).
0
0
DD
AD7450
0
0
REF
supply.
.
0
0