AK5434D Datasheet, PDF (5/13 Pages) Asahi Kasei Microsystems – Dual channel 14bit 30MHz A/D Converter with differential input

ASAHI KASEI
[AK5434D]
Electrical Characteristics
„ Analog Specifications
(AVDD=DVDD=3.3V, S/H gain=0dB, Ta=25°C, CLKI=30MHz, fin=14.9MHz, Signal Level=3.4Vpp-diff)
Parameter
Symbol
Condition
min
Typ
Max Units
DC Characteristics
Resolution
RES
14
Bits
Integral
INL
±2.8 ±10.5 LSB
Non-Linearity
Differential
DNL
±0.8 ±4.0 LSB
Non-Linearity
Offset
EOC AIxP=AIxN=VCM (x=1,2)
±100 LSB
Gain Error
GERR Gain setting 0dB
-10
0
+10 %FS
Gain
Gain setting 6dB
5.5
6
6.5
dB
Gain setting 12dB
11.5
12
12.5
dB
Input Range
AINFS Gain setting 0dB
3.6
4.0
4.4 Vpp-diff
Common Voltage VCM
1.26
1.4
1.54
V
ADC Reference VRP
1.8
2.0
2.2
V
Voltage
AC Characteristics
S/N
SNR
68
73
dB
S/(N+D)
SND
64
69
dB
S/(N+D) (Note 1) SND2 fin=1MHz
66
71
dB
SFDR
SFDR
70
dB
Total Harmonic THD
64
70
dBc
Distortion
Input Resistance RIN (Note 4)
60
kΩ
(Note 1)
Input Capacitance CIN
5
8
pF
(Note 1)
Input
Signal BW
-3dB Level
400
MHz
bandwidth (Note 1)
CMRR
CMR fin=1MHz, common swing -26dB 50
56
dB
Crosstalk
CTK fin=7.45MHz
−80
−70
dB
Current
IA
Analog fin=1MHz
46
68
mA
Consumption
ID
Digital(Note 2) fin=1MHz
6
9
mA
IPD
0.3
mA
Current
IAS
Analog
0.1
mA
Consumption in IDS
Digital
0.1
mA
power down
(Note 3)
(Note 1) Design Value
(Note 2) CL=10pF are connected to D0~D13 pins.
(Note 3) Power down PDN=Low, CLKI=Low fix, Current consumption without no input signal.
(Note 4) Equivalent resistance that from VCM operation middle point to differential input pins AI1P/N,
AI2P/N. It is in inverse proportion to sampling frequency.
MS1515-E-00
-5-
2013/02