AK8452 Datasheet, PDF (8/46 Pages) Asahi Kasei Microsystems – 2 channel-input 16 bit 10MSPS ADC

AKM Confidential
ASAHI KASEI
[AK8452]
„ AFE block, Analog characteristics
(AVDD=3.3V, DRVDD=3.3V, MCLK=40MHz, 2ch. Single Edge Mode, Ta=25°C,
Item
VCOM voltage
VRP voltage
VRN voltage
Min. Typ. Max.
Reference voltage
1.4
1.5
1.6
1.9
2.0
2.1
0.9
1.0
1.1
Unit
V
V
V
unless otherwise specified)
Remarks
VREF voltage
1.0
1.1
1.2
V Band Gap error
at current sink error
+0.1
V @ I=10mA ( diff. @I=0mA)
at current source error
-0.1
V @ I=-10mA( diff. @I=0mA)
Analog input
Maximum signal input level
1.98
Vp-p
Absolute gain
–0.7
0
0.7
dB At DC mode (Note 1)
–1.50 –0.60 0.30 dB At CDS mode (Note 1)
Sampling rate
1
5 MSPS @2ch mode (per 1ch)
1
8 MSPS @1ch mode
Input reference level
0
1.1
1.5
V At DC mode
VCLP input resistence(CISIN side)
10
60
kΩ At DC mode(note 11)
VCLP input resistence(VCLP side)
5
30
kΩ At DC mode(note 11)
Input signal range
0
AVDD V At DC mode （Note 2）
Clamp level (VCLP voltage) 1.98 2.08 2.18
V At CDS mode
Clamp resister
7
10
kΩ At CDS mode
CDS advantage
-40
dB (note 10)
Black level correction DAC
Resolution
8
Bit (Note 3)test mode
Correctable range
±215 ±240 ±265 mV At DC mode (Note 4)
Internal offset voltage
–50
50
mV (Note 5)
PGA(Programmable Gain Amp.) circuit
Resolution
6
Bit
Min. gain
0
dB
Max. gain
13.3 13.9 14.5 dB (Note 6)
Video ADC
Resolution
16
Bit
DNL
–16
+16 LSB
INL
–128 ±32 +128 LSB
Crosstalk
Crosstalk
64
LSB (note 12)
Noise
Output noise
6
LSBrms PGA min.
16
LSBrms PGA max.
Power Consumption
Analog part
48
68
mA At DC mode (Note 7)
power dissipations
55
77
mA At CDS mode (Note 7)
0.1
mA At power down (Note 8)
Digital output driver power
5
10
mA (Note 7)(Note 9)
dissipation
(Note 1) 0dB is defined at the gain where ADC output reaches its full-scale when 1.98Vpp signal
is input with PGA setting at 00h.
(Note 2) CISIN input signal must be in this range which is referenced to AVSS.
MS0955-E-00
8
2008/03