The MAX1003 is a high-performance, low-power dual 6-bit analog-to-digital converter (ADC) that can convert I and Q analog signals at sampling rates up to 90Msps in input ranges of 125mVp-p, 250mVp-p, or 500mVp-p. The device is ideal for use in direct-broadcast satellite, VSAT, and QAM16 demodulation applications.
The MAX1003 is a dual, 6‑bit analog‑to‑digital converter that combines high‑speed, low‑power operation with a user‑selectable input range, internal reference, and clock oscillator. It converts I and Q analog signals into two 6‑bit offset‑binary outputs at sampling rates up to 90 Msps, making it suitable for direct‑broadcast satellite, VSAT and QAM16 demodulation applications.
The device operates from a +5 V analog supply and a +3.3 V digital supply, comes in a 36‑pin SSOP package, and offers features such as 55 MHz analog bandwidth, programmable full‑scale ranges (125 mVp‑p, 250 mVp‑p, 500 mVp‑p), and low ENOB (5.85 bits at 20 MHz). Detailed pin descriptions, electrical characteristics, and layout recommendations are provided for designers.
| Resolution | 6 bit |
|---|---|
| Maximum Sampling Rate | 90 Msps per ADC |
| Power Dissipation | 350 mW |
| Analog Input Bandwidth | 55 MHz (-0.5 dB) |
| Input Full‑Scale Range | 125, 250 or 500 mVp‑p |
| Supply Voltages | +5 V analog, +3.3 V digital |
| Package | 36‑pin SSOP |
The MAX1003 can sample up to 90 Msps per ADC.
It requires a +5 V analog supply and a +3.3 V digital supply.
The analog input bandwidth is 55 MHz with a -0.5 dB point.
The MAX1003 provides 6‑bit resolution.