MAX153 1Msps, P-Compatible, 8-Bit ADC with 1A Power-Down General Description Features The MAX153 high-speed, microprocessor (P)-compatible, 660n s Conversion Time 8-bit analog-to-digital converter (ADC) uses a half-flash Power-Up/Power-Down in 200ns technique to achieve a 660ns conversion time, and digitiz- Internal Track /Hold es at a rate of 1M samples per second (Msps). It operates with single +5V or dual 5V supplies and accepts either 1Msps Throughput unipolar or bipolar inputs. A POWERDN (power-down) Low Power pin reduces current consumption to a typical value of 1A 40mW (Operating Mode) (with 5V supply). The part returns from power-down to 5W (Power-Down Mode) normal operating mode in less than 200ns, providing large 1MHz Full-Power Bandwidt h reductions in supply current in applications with burst- 20-Pin Narrow DIP, SO, and SSOP Packages mode input signals. No External Clock Required The MAX153 is DC and dynamically tested. Its P interface appears as a memory location or input/output port that Unip olar/ Bipolar Inputs requires no external interface logic. The data outputs use Single +5V or Dual 5V Supplies latched, three-state buffered circuitry for direct connection Ratiometric Reference Inputs to a P data bus or system input port. The ADCs input/ reference arrangement enables ratiometric operation. Functional Diagram Applications Cellu lar Telephones V DD Portable Radios 20 V REF+ 12 Battery-Powered Systems 18 PWRDN 4-BIT Burst-Mode Data Acquisitio n V 11 REF- FLASH Digital-Signal Processing V ADC IN 1 Telecommunications D0D7 DATA High -Speed Servo Loops THREE- 4-BIT OUT STATE DAC PINS DRIVERS 25, V REF+ 1417 Ordering Information appears at end of data sheet. 16 4-BIT FLASH ADC For related parts and recommended products to use with this part, refer (4 LSB) to www.maximintegrated.com/MAX153.related. MAX153 TIMING AND CONTROL CIRCUITRY 10 7 6 3 7 7 19 V GND MODE WR/RDY CS RD INT SS 19-4740 Rev 2 1/12MAX153 1Msps, P-Compatible, 8-Bit ADC with 1A Power-Down Absolute Maximum Ratings (All voltages referenced to GND.) SO(W) (derate 10.00mW/C above +70C..................800mW V ..........................................................................-0.3V to +7V SSOP (derate 8.00mW/C above +70C) ...................640mW DD V ..........................................................................+0.3V to -7V Operating Temperature Ranges SS Digital Input Voltage ............................... +0.3V to (V + 0.3V) MAX153C ...................................................................0 to +70C DD Digital Output Voltage.............................. -0.3V to (V + 0.3V) MAX153E ........................................................... -40C to +85C DD V , V , V ........................(V - 0.3V) to (V + 0.3V) Storage Tempera ture Range ............................ -65C to +150C REF+ REF+ IN SS DD Continuous Power Dissipation (T = +70C) Lead Temperatur e (soldering, 10s) .................................+300C A PDIP (derate 11.11mW/C above + 70C)................889mW Soldering Temperature (reflow) .......................................+260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V = +5V 5%, V = 0V Unipolar Input Range: V = GND, V = 5V, V = GND Bipolar Input Range: V = -5V 5%, DD GND SS REF+ REF- SS V = 2.5V, V = -2.5V 100% production tested, specificatio ns are given for RD Mode (MODE = GND), T = T to T , REF+ REF- A MIN MAX unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ACCURACY Resolution N 8 Bits Total Unadjusted Error TUE Unipolar range 1 LSB Differential Nonlinearity DNL No missing codes guaranteed 1 LSB Zero-Code Error Bipolar input range 1 LSB Full-Scale Error Bipolar input range 1 LSB DYNAMIC SPECIFICATIONS (Note 1) Signal-to-Noise Plus Distortion SINAD f = 1MHz, f = 195.8kHz 45 dB SAMPLE IN Noise Total Harmonic Distortion THD f = 1MHz, f = 195.8kHz -50 dB SAMPLE IN Peak Harmonic or Spurious f = 1MHz, f = 195.8kHz -50 dB SAMPLE IN Noise Conversion Time (WR-RD Mode) t T = +25C, t < t , C = 20pF 660 ns CWR A RD INTL L (Note 2) T = +25C 700 A Conversion Time (RD Mode) t ns CRD T = T to T 875 A MIN MAX Full-Power Bandwidth V = 5V 1 MHz IN P-P Input Slew Rate 3.14 15 V/s ANALOG INPUT Input Voltage Range V V V V IN REF- REF+ Input Leakage Current I -5V V +5V 3 A IN IN Input Capacitance C 22 pF IN REFERENCE INPUT Reference Resistance R 1 2 4 k REF V Input Voltage Range V V V REF+ REF- DD V Input Voltage Range V V V REF- SS REF+ Maxim Integrated 2 www.maximintegrated.com