AK5554 Datasheet, PDF (8/68 Pages) Asahi Kasei Microsystems – 4-Channel Differential 32-bit ADC

[AK5554]
6. Absolute Maximum Ratings
(VSS= 0 V; Note 3)
Parameter
Symbol
Min.
Max.
Unit
Power
Analog (AVDD pin)
AVDDam −0.3
6.0
V
Supplies:
Digital Interface (TVDD pin)
TVDDam −0.3
4.0
V
Digital Core (VDD18 pin)(Note 4) VDD18am −0.3
2.5
V
Input Current (Any Pin Except Supplies)
IIN
-
10
mA
Analog Input Voltage (AIN1-4P, AIN1-4N pins)
VINA
−0.3 AVDD+0.3
V
Digital Input Voltage
VIND
−0.3 TVDD+0.3
V
Ambient Temperature (Power applied)
When the back tab is connected to VSS
Ta
−40
105
C
When the back tab is open
Ta
−40
70
C
Storage Temperature
Tstg
−65
150
C
Note 3. All voltages with respect to ground.
Note 4. The 1.8 V LDO is off (LDOE pin = “L”) and an external power is supplied to the VDD18 pin.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
7. Recommended Operation Conditions
(VSS=0V; Note 3)
Parameter
Symbol Min. Typ. Max. Unit
Analog (AVDD pin)
AVDD
4.5
5.0
5.5
V
Power
Supplies
(LDOE pin= “L”) (Note 5)
Digital Interface (TVDD pin) (Note 6)
Digital Core (VDD18 pin)
TVDD
VDD18
1.7
1.7
1.8
1.98 V
1.8
1.98 V
Voltage
Reference
(Note 11)
(LDOE pin= “H”) (Note 7)
Digital Interface (TVDD pin)
“H” voltage Reference (Note 8)
“L” voltage reference
TVDD
3.0
3.3
3.6
V
VREFH1-2 4.5
5.0
5.5
V
VREFL1-2
-
AVSS
-
V
Note 3. All voltages with respect to ground.
Note 5. VDD18 must be powered up either at the same time or after TVDD is powered up when the LDOE
pin = “L”. The power up sequence between AVDD pin and TVDD pin or between AVDD pin and
VDD18 pin is not critical.
Note 6. TVDD must not exceed VDD18±0.1 V when LDOE pin= “L”.
Note 7. When LDOE pin = “H”, the internal LDO supplies 1.8 V (typ). The power up sequences between
AVDD pin and TVDD pin is not critical.
Note 8. VREFH1-2 must not exceed AVDD+0.1 V.
Note 9. VREFL1-2 must be connected to AVSS.
Analog Input Voltage is proportional to {(VREFH) – (VREFL)}.
Vin (typ, @ 0dB) = 2.8  {(VREFH) – (VREFL)} / 5 [V].
* AKM assumes no responsibility for the usage beyond the conditions in this data sheet.
015099864-E-00
-8-
2016/03