MAX1002CAX+

19-1270; Rev 0; 7/97 KIT ATION EVALU LE B A IL A AV Low-Power, 60Msps, Dual, 6-Bit ADC ____________________________Features ♦ ±1/4LSB INL and DNL, Typical The MAX1002 input amplifiers feature true differential inputs, a 55MHz -0.5dB analog bandwidth, and userprogrammable input full-scale ranges of 125mVp-p, 250mVp-p, or 500mVp-p. With an AC-coupled input signal, matching performance between input channels is typically 0.1dB gain, 1/4LSB offset, and 0.5° phase. Dynamic performance is 5.85 effective number of bits (ENOB) with a 20MHz analog input signal, or 5.78 ENOB with a 50MHz input signal. The MAX1002 operates with a single +5V power supply and provides TTL-compatible digital outputs. The device is available in the commercial temperature range (0°C to +70°C) and comes in a 36-pin SSOP package. ♦ 55MHz (-0.5dB) Bandwidth Input Amplifiers with True Differential Inputs ♦ User-Selectable Input Full-Scale Range (125mVp-p, 250mVp-p, or 500mVp-p) ♦ Single-Ended or Differential Input Drive ________________________Applications Direct Broadcast Satellite (DBS) Receivers VSAT Receivers Wide Local Area Networks (WLAN) Cable Television Set-Top Boxes ♦ 1/4LSB (typ) Channel-to-Channel Offset Matching ♦ 0.1dB Gain and 0.5° Phase Matching, Typical ♦ Internal Bandgap Voltage Reference ♦ Two Matched 6-Bit, 60Msps ADCs ♦ Excellent Dynamic Performance: 5.85 ENOB with 20MHz Analog Input 5.7 ENOB with 50MHz Analog Input ♦ Internal Oscillator with Overdrive Capability ♦ +5V Single Supply ♦ TTL Outputs ♦ 90Msps Upgrade with +3.3V CMOS-Compatible Output Available (MAX1003) ______________Ordering Information PART TEMP. RANGE MAX1002CAX PIN-PACKAGE 0°C to +70°C 36 SSOP Pin Configuration appears at end of data sheet. _________________________________________________________Functional Diagram IOCC+ IOCC- IIN+ IIN- INPUT AMP I ADC I VREF 6 OFFSET CORRECTION I GAIN QIN- CLOCK OUT MAX1002 VREF ADC Q QOCC+ DCLK TNK- OFFSET CORRECTION Q INPUT AMP Q D0I–D5I TNK+ CLOCK DRIVER BANDGAP REFERENCE QIN+ 6 DATA BUFFER I 6 DATA BUFFER Q 6 DQ0–DQ5 QOCC- ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 For small orders, phone 408-737-7600 ext. 3468. MAX1002 _______________General Description The MAX1002 is a dual, 6-bit analog-to-digital converter (ADC) that combines high-speed, low-power operation with a user-selectable input range, an internal reference, and a clock oscillator. The dual, parallel ADCs are designed to convert in-phase (I) and quadrature (Q) analog signals into two 6-bit offset-binary-coded digital outputs at sampling rates up to 60Msps while achieving typical integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1/4LSB. The ability to interface directly with baseband I and Q signals makes the MAX1002 ideal for use in direct-broadcast satellite, VSAT, and QAM16 demodulation applications. MAX1002 Low-Power, 60Msps, Dual, 6-Bit ADC ABSOLUTE MAXIMUM RATINGS VCC to GND .........................................................-0.3V to +6.5V VCCO to OGND.........................................................-0.3V, +6.5V GND to OGND .........................................................-0.3V, +0.3V Digital and Clock Output Pins to OGND ........-0.3V, VCCO (