AK5483 Datasheet, PDF (7/14 Pages) Asahi Kasei Microsystems – 10Bit 20MHz 3CH A/D Converter

ASAHI KASEI
[AK5483]
1) Analog Specifications
Specifications
(AVDD=DVDD=3.3V, VBT=1.43V,VTP=2.53V, Ta=25deg,
Fs=20MHz @20MHz mode , Fs=15MHz @15MHz mode
Signal frequency Fin=1MHz Signal level =-1dB , unless otherwise noted)
Parameter
Resolution
Integral
Nonlinearity[INL]
Symbol
RES
INL
Conditions
min
typ
max
10
+-1.5 +-2.5
Differential
Nonlinearity[DNL]
Offset Voltage
Cross-talk
Input Resistance
Input Capacitance
Input Bandwidth
DNL
EOB
EOT
CT
RIN
CIN
BW
TO VBT
-30
TO VTP (#1) -40
@Fs=20MHz(#2)
@Fs=20MHz(#3)
@Fs=20MHz
-3dB@20MHz
+-0.6
-65
50
10
100
+-1.0
+30
+40
-55
Units
BITS
LSB
LSB
mV
mV
dB
KOHM
pF
MHz
(#1)Offset Voltage is the difference of Transition input voltage to All Zero
[All One] and VBT[VTP].
(#2)Cross-talk[CT] is the isolation between each ADC.
The value is specified as the cross talk from any one channel[Ain=1MHz ,-1dB]
to the other two channels[no signal input].
(#3)Input Resistance[RIN] is specified as the equivalent impedance from Analog
Input Pins[AINA,AINB,AINC] to ADC common voltage[center voltage between
VTP & VBT]. RIN is proportional to 1/FS.
M0035-E-01
-7-
1999/03