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.
The MAX1002 input amplifiers feature true differential inputs, a 55MHz -0.5dB analog bandwidth, and user-programmable 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.
Key Features
Applications/Uses
±1/4LSB INL and DNL, Typical
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
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
+5V Single Supply
TTL Outputs
90Msps Upgrade with +3.3V CMOS-Compatible Output Available (MAX1003)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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