AK9223

[AK9223] AK9223 Dual 1-Bit, 10MHz, 2nd-Order, ΔΣ Modulator 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 105C  Small Package: 24-pin TSSOP (0.65mm pitch) CH2+ CH2REF2 AIN0+ AIN0REFI0 AIN1+ AIN1REFI1 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 014010283-E-02 1 2019/02 ■ Pin Configurations AVDD 1 VSS1 2 REFI0 3 TEST0 4 AIN0+ 5 AIN0- 6 AIN1- 7 AIN1+ 8 TEST1 9 REFI1 10 VSS2 11 AVDD 12 Top View [AK9223] 24 AVDD 23 REFO 22 VSS4 21 OUT0 20 OUT1 19 CLKO 18 VSS5 17 DVDD 16 CLKI 15 SEL 14 VSS3 13 AVDD 014010283-E-02 2 2019/02 [AK9223] Pin Functions Pin No. Pin Name I/O Function 1 AVDD - Analog Power Supply: 4.5V to 5.5V Connect to VSS1~VSS4 with a 0.1μF ceramic capacitor. 2 VSS1 - Ground 3 REFI0 I Reference Vol...