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AK9223MK Datasheet, PDF (1/16 Pages) Asahi Kasei Microsystems – Dual 1-Bit, 10MHz, 2nd-Order, ΔΣ Modulat | |||
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[AK9223]
AK9223
Dual 1-Bit, 10MHz, 2nd-Order, ÎΣ 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
ï¯ Resolution: 16-bit
ï¯ Linearity: 13-bit
ï¯ Input Voltage Range: ±2.3V
ï¯ High Accurate Reference Voltage: ±1% (2.5V ±0.025V), ±20ppm/ï°C (typ.)
ï¯ Gain Error: 0.5% (max.)
ï¯ 2ch ÎΣ Modulator
ï¯ 2ch Input Reference
ï¯ 20MHz OSC
ï¯ Selectable External Clocks
ï¯ Power Consumption: 67.5 mW (SEL=1, AVDD = DVDD = 5V)
ï¯ Power Supply: AVDD = 4.5 to 5.5VãDVDD = 2.7 to 5.5V
ï¯ Ta = -40 to 105ï°C
ï¯ Small Package: 24-pin TSSOP (0.65mm pitch)
CH2+
CH2-
REF2
AIN0+
AIN0-
REFI0
AIN1+
AIN1-
REFI1
REFO
AVDD
Second-Order
ÎΣModulator
DVDD
Output
Interface
Circuit
OUT1
OUT2
CLKO
Second-Order
ÎΣModulator
Clock
Select
20MHz
OSC
Oscillator
2.5V
Reference
Voltage
VSS1 VSS2 VSS3 VSS4 VSS5
Figure 1. Block Diagram
CLKI
SEL
014010283-E-01
1
2015/01
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