[AK2331]
Analog Characteristics
Unless otherwise specified, the following apply: AVDD = 4.5 to 5.5V, VSS = 0V, AVDD
≥
VIN, VREF = 0V
to AVDD, Ta = -40 to +85°C.
DACREF shows an internal setting level of DAC reference voltage.
Parameter
VREF pin leak current
VREF pin input voltage
range
Resolution
Differential nonlinearity
Symbol
I
VREF
V
VREF
RES
DNL
Condition
VIN = AVDD = 5V
VREF = 0V
VIN = AVDD = 5V
0.2
8
+1
+1.5
Min.
Typ.
Max.
10
AVDD-0.2
Unit
μA
V
bit
LSB
LSB
VIN = AVDD = 5V
-1
DACREF: VSS
Nonlinearity
|IAO| = 0μA
INL
-1.5
*1)
VOUT = 0x02 to 0xFF
|IAO| = 0μA
VIN = AVDD,
DACREF: VSS
VOUT[7:0] = 0x00
VAO1
|IAO| = 0μA
VIN = AVDD,
AVDD-0.1
DACREF:VSS
Buffer amplifier output
VOUT[7:0] = 0xFF
voltage range
|IAO|
≤
1mA
VIN = AVDD,
DACREF: VSS
VOUT[7:0] = 0x00
VAO2
|IAO|
≤
1mA
VIN = AVDD,
AVDD-0.4
DACREF: VSS
VOUT[7:0] = 0xFF
AVDD/2 output voltage
AVDD = 5V,
VAO3
2.45
|IAO|
≤
1mA
when AVDD2O[7:0] is set
AVDD = 5V,
DACREF: AVDD/2
Maximum input frequency
FIN
VIN = 3Vp-p, 10kHz
2.7
VOUT[7:0] = 0xFF
RL = 22kΩ, CL = 100pF
AVDD = 5V,
DACREF: AVDD/2
VIN = 3Vp-p, 1kHz
Output distortion
SINAD VOUT[7:0]=0x0A to 0xFF
56
RL = 22kΩ, CL = 100pF
30kHz LPF used
*4)
0.1
V
V
0.4
V
V
2.5
2.55
V
3.0
Vp-p
60
dB
MS0903-E-00
-8-
2008/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
