ADC09R03 5V, 9 Bit 60 KSPS, Resistive Ladder ADC DAC/ADC AMI 0.6 micron CMOS Features General Description • Maximum range of the input is 0.5 to 3.5 volts above analog ground • Max clock input 600 kHz • Low-Power Mode • Sleep Mode • The converter is operated by one single power supply The ADC09R03 is realized as a resistive ladder architecture. The part operates on one single 5V supply. The 9-Bit ADC is designed to run in a continuous mode. No control signals are required to begin conversions. Each conversion requires 10 clock-cycles, for a maximum conversion rate of 60 kHz. The VALID signal goes high at the completion of the conversion, and the data is latched at the outputs until the next assertion of VALID. Functional Block Diagram In order to decrease power consumption, the ADC09R03 can be put into one of two low-power modes, sleep or low-power. This ultra-low power characteristic makes the ADC09R03 ideal for portable applications. VREF Valid Applications Input • Low power portable applications • Instrumentation • DSP control loops • Audio processing • Low speed data acquisition Out Q0-Q8 Product Highlights • Ultra-low power operation. • Hybrid design of both resistor network and capacitor network guarantees highest accuracy. • External reference. • Low-power and sleep mode. • The ADC09R03 operates on a single 5V supply. • Part is realized in AMI's 0.6µ process. A version in AMI's 1.5µ process allows operation at higher voltages. Clk Notes: VIN: Input Voltage VREF: Reference Voltage CLK: Clock Input CMPPWRDN: Low-Power Mode PWRDN: Sleep Mode RESET Q0-Q8: Digital Outputs (Q8 is MSB, Q0 is LSB) VALID: Indicates the finish of the current conversion V5: Analog supply voltage VL: Logic supply voltage AGND: Analog Ground DGND: Digital Ground 1 ADC09R03 5V, 9 Bit 60 KSPS, Resistive Ladder ADC DAC/ADC AMI 0.6 micron CMOS Electrical Characteristics PARAMETER MIN DYNAMIC PERFORMANCE Signal to (Noise + Distortion) Ratio Total Harmonic Distortion (THD) ACCURACY Resolution No Missing Codes1 LOGIC OUTPUTS Output High Voltage, VOH Output Low Voltage, VOL High Impedance Leakage Current High Impedance Capacitance dB %FSR 9 Bits 0.5 2 LSB LSB LSB LSB LSB 3.5 >10 3 3.5 3 2 0.05 V MΩ pF V µA pF VL-0.8 0 VL-0.6 0.4 – 0.2 VL 0.6 V V mA pF VL-0.8 0 VL-0.6 0.2 – – VL 0.4 V V mA pF CONVERSION RATE Conversion Time POWER SUPPLY VDD (Analog Supply) VL (Logic Supply) ITOTAL Power Consumption UNITS 55 0.3 2 +/- 1/4 1 1/2 1/2 REFERENCE INPUTS VREF Input Voltage Range Input Leakage Current Input Capacitance LOGIC INPUTS VINH, Input High Voltage VINL, Input Low Voltage Input Current, IIN Input Capacitance CIN MAX Guaranteed by Design Accuracy Differential Nonlinearity (DNL) Total Unadjusted Error Gain Error Offset Error ANALOG INPUT Input Voltage Range Input Impedance Input Capacitance TYP µs 16.67 4.5 4.5 NOTE: 1 Output Coding is 2's Compliment. 2 5 5 33 200 5.5 5.5 V V µA µW ADC09R03 5V, 9 Bit 60 KSPS, Resistive Ladder ADC DAC/ADC AMI 0.6 micron CMOS Absolute Maximum Ratings PARAMETER UNITTS VDD to DGND 6.3 V -.3 to VDD +.3 V 5 V Analog Input VDD +.5 V Storage Temperature Range -20/125 °C Junction Temperature 150 °C Power Dissipation 0.25 mW – °C Digital Input Voltage to DGND REFIN to AGND Lead Temperature, (Soldering 10 s) 3 ADC09R03 5V, 9 Bit 60 KSPS, Resistive Ladder ADC DAC/ADC AMI 0.6 micron CMOS Copyright®1998, American Microsystems, Inc. Devices sold by AMI are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. AMI makes no warranty, express, statutory implied or by description, regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. AMI makes no warranty of merchantability or fitness for any purposes. AMI reserves the right to discontinue production and change specifications and prices at any time and without notice. AMI's products are intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recommended without additional processing by AMI for such applications. American Microsystems, Inc., 2300 Buckskin Rd., Pocatello, ID 83201, (208) 233-4690, FAX (208) 234-6796 1-800-639-7264, www.amis.com ADC09R03 GA98101PM8/98 4