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부품번호 | AK9223 기능 |
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기능 | 2ch delta-sigma modulator | ||
제조업체 | AKM | ||
로고 | |||
전체 16 페이지수
[AK9223]
AK9223
Dual 1-Bit, 10MHz, 2nd-Order, ΔΣ Modulat
or
General Description
The AK9223 is a 2ch delta-sigma modulator that achieves 86dB dynamic range. It operates of a 5V power
supply. The AK9223 is available in a space-saving 24-pin TSSOP package.
Features
Resolution: 16-bit
Linearity: 13-bit
Input Voltage Range: ±2.3V
High Accurate Reference Voltage: ±1% (2.5V ±0.025V), ±20ppm/C (typ.)
Gain Error: 0.5% (max.)
2ch ΔΣ Modulator
2ch Input Reference
20MHz OSC
Selectable External Clocks
Power Consumption: 67.5 mW (SEL=1, AVDD = DVDD = 5V)
Power Supply: AVDD = 4.5 to 5.5V、DVDD = 2.7 to 5.5V
Ta = -40 to 105C
Small Package: 24-pin TSSOP (0.65mm pitch)
CH2+
CH2-
REF2
AIN0+
AIN0-
REFI0
AIN1+
AIN1-
REFI1
REFO
AVDD
Second-Order
ΔΣModulator
DVDD
Output
Interface
Circuit
OUT1
OUT2
CLKO
Second-Order
ΔΣModulator
Clock
Select
20MHz
OSC
Oscillator
2.5V
Reference
Voltage
VSS1 VSS2 VSS3 VSS4 VSS5
Figure 1. Block Diagram
CLKI
SEL
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Absolute Maximum Ratings
(VSS1~VSS5 = 0V; Note 2, Note 3)
Parameter
Symbol
Min.
Power Supply
VDD
-0.3
Analog Input Current
AIIN -
(AIN0+, AIN0-, AIN1+, AIN1-, REFI0, REFI1)
Analog Input Voltage
AVIN
-0.3
(AIN0+, AIN0-, AIN1+, AIN1-, REFI0, REFI1)
Digital Input Current (CLKI, SEL)
DIIN
-
Digital Input Voltage (CLKI, SEL)
DVIN
-0.3
Storage Temperature
Tstg -65
Max.
+6.0
10
AVDD+0.3
10
DVDD+0.3
150
Unit
V
mA
V
mA
V
C
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Recommended Operating Conditions
(VSS1~VSS5 = 0V; Note 2, Note 3)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Analog Power Supply
AVDD
4.5 5.0 5.5 V
Digital Power Supply
DVDD 3V logic level
2.7
3.0
3.6 V
5V logic level
4.5
5
5.5 V
Input Reference Voltage REFI
0.5 2.5 2.6 V
Analog Input
Vin= (AIN+) - (AIN-)
-0.92 x VREF
+0.92 x VREF V
External clock
16 20 24 MHz
Ambient Operating
Temperature
Ta
-40 105 C
Note 2. All voltages are with respect to ground.
Note 3. VSS1, VSS2, VSS3, VSS4 and VSS5 must be connected to the same analog ground plane.
Note 4. The power supply sequence between AVDD and DVDD is not critical upon power-up.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
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DC Characteristics
(Ta = -40C to 105C, AVDD=4.5V to 5.5V, DVDD=2.7V to 5.5V)
Parameter
Symbol
Min.
High-Level Input Voltage1,
DVDD=2.7V to 3.6V
VIH1
2
Low-Level Input Voltage1,
DVDD=2.7V to 3.6V
VIL1
-
High-Level Input Voltage2,
DVDD=4.5V to 5.5V
VIH2 0.7 x DVDD
Low-Level Input Voltage2,
DVDD=4.5V to 5.5V
VIL2
-
Input capacitance
Ic -
Input Leakage Current
Iin -
High-Level Output Voltage , DVDD=4.5V
(Iout = -100µA)
VOH2
4.44
Low-Level Output Voltage , DVDD=4.5V
(Iout =100µA)
VOL2
-
High-Level Output Voltage , DVDD=2.7V
(Iout = -100µA)
VOH1 DVDD-0.2
Low-Level Output Voltage , DVDD=2.7V
(Iout =100µA)
VOL1
-
Output Capacitance
CO -
Load Capacitance
CL -
Typ.
-
-
5
-
-
-
-
-
5
-
Max.
-
Unit
V
0.8 V
-V
0.3 x DVDD
-
±1
-
V
pF
uA
V
0.5 V
-V
0.2 V
- pF
30 pF
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7페이지 | |||
구 성 | 총 16 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
AK9223 | 2ch delta-sigma modulator | AKM |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |