Overview
The MAX1003CAX+T, produced by Analog Devices Inc./Maxim Integrated, is a dual, 6-bit analog-to-digital converter (ADC) designed for high-speed, low-power applications. This component is particularly suited for converting in-phase (I) and quadrature (Q) analog signals into two 6-bit, offset-binary-coded digital outputs at sampling rates up to 90Msps. The MAX1003 features true differential inputs, an internal bandgap voltage reference, and an internal oscillator with overdrive capability, making it ideal for various high-frequency signal processing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 6-bit (dual ADCs) |
| Sampling Rate | Up to 90Msps per ADC |
| Analog Input Bandwidth | 55MHz (-0.5dB) |
| Input Full-Scale Range | 125mVp-p, 250mVp-p, or 500mVp-p (user-selectable) |
| Effective Number of Bits (ENOB) | 5.85 with 20MHz analog input, 5.7 with 50MHz analog input |
| Power Dissipation | 350mW |
| Analog Supply Voltage | +5V |
| Digital Supply Voltage | +3.3V |
| Package Type | 36-pin SSOP |
| Operating Temperature Range | 0°C to +70°C |
Key Features
- Two matched 6-bit ADCs for simultaneous sampling of I and Q channels
- High sampling rate of up to 90Msps per ADC
- Low power dissipation of 350mW
- Excellent dynamic performance with ENOB of 5.85 at 20MHz and 5.7 at 50MHz
- Internal bandgap voltage reference and internal oscillator with overdrive capability
- User-selectable input full-scale ranges and true differential inputs
- ±1/4LSB INL and DNL (typical) and 0.1dB gain and 0.5° phase matching between channels
- Flexible, 3.3V CMOS-compatible digital outputs
- Separate analog and digital power and ground connections for improved noise immunity
Applications
- Direct-Broadcast Satellite (DBS) Receivers
- VSAT Receivers
- Cable Television Set-Top Boxes
- Wide Local Area Networks (WLANs)
- QAM16 Demodulation Applications
Q & A
- What is the sampling rate of the MAX1003CAX+T?
The MAX1003CAX+T has a sampling rate of up to 90Msps per ADC.
- What are the available input full-scale ranges for the MAX1003CAX+T?
The input full-scale ranges are 125mVp-p, 250mVp-p, or 500mVp-p, and are user-selectable.
- What is the power dissipation of the MAX1003CAX+T?
The power dissipation is 350mW.
- What is the effective number of bits (ENOB) for the MAX1003CAX+T at different analog input frequencies?
The ENOB is 5.85 with a 20MHz analog input and 5.7 with a 50MHz analog input.
- What type of package does the MAX1003CAX+T come in?
The MAX1003CAX+T comes in a 36-pin SSOP package.
- What are the operating supply voltages for the MAX1003CAX+T?
The analog supply voltage is +5V, and the digital supply voltage is +3.3V.
- What are the key applications of the MAX1003CAX+T?
The key applications include Direct-Broadcast Satellite (DBS) Receivers, VSAT Receivers, Cable Television Set-Top Boxes, and Wide Local Area Networks (WLANs).
- How does the MAX1003CAX+T ensure noise immunity?
The component has separate analog and digital power and ground connections to isolate high-current digital noise spikes from the sensitive analog circuitry.
- What is the operating temperature range of the MAX1003CAX+T?
The operating temperature range is from 0°C to +70°C.
- Does the MAX1003CAX+T have internal oscillator capabilities?
Yes, it has an internal oscillator with overdrive capability.
