Overview
The MAX1437B, produced by Analog Devices Inc./Maxim Integrated, is an octal, 12-bit analog-to-digital converter (ADC) designed for high-dynamic performance and low-power operation. This ADC features fully differential inputs, a pipelined architecture, and digital error correction, making it suitable for applications requiring high accuracy and reliability. The MAX1437B operates from a single 1.8V supply and consumes 768mW (96mW per channel), delivering a signal-to-noise ratio (SNR) of 70.2dB at a 5.3MHz input frequency. It is optimized for use in medical imaging instrumentation, multichannel communications, and ultrasound applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sample Rate | Up to 50Msps |
| Supply Voltage | 1.8V |
| Power Consumption | 96mW per channel (Normal Operation) |
| Signal-to-Noise Ratio (SNR) | 70.2dB at 5.3MHz |
| Spurious-Free Dynamic Range (SFDR) | 98dBc at 5.3MHz |
| Channel Isolation | 82dB at 5.3MHz |
| Differential Input Voltage Range | 1.4V P-P |
| Output Format | Serial LVDS, Pin-Selectable LVDS/SLVS |
| Package Type | 68-Pin TQFN with Exposed Pad |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Excellent Dynamic Performance: 70.2dB SNR and 98dBc SFDR at 5.3MHz.
- Ultra-Low Power: 96mW per channel in normal operation.
- Serial LVDS Outputs: Supports up to 30 inches FR-4 backplane connections.
- Pin-Selectable LVDS/SLVS Mode: Flexible output signaling.
- Fully Differential Analog Inputs: Wide differential input voltage range of 1.4V P-P.
- On-Chip 1.24V Precision Bandgap Reference: Flexible reference structure for external reference use.
- Clock Duty-Cycle Equalizer: Compensates for wide variations in clock duty cycle.
- Test Mode for Digital Signal Integrity: Ensures reliable digital output.
- Compact Package: 68-Pin TQFN package with exposed pad.
- Evaluation Kit Available: MAX1437BEVKIT for performance evaluation.
Applications
- Instrumentation: High-precision measurement and data acquisition.
- Multichannel Communications: High-speed data conversion in communication systems.
- Ultrasound and Medical Imaging: High-resolution imaging and diagnostic applications.
Q & A
- What is the resolution of the MAX1437B ADC?
The MAX1437B is a 12-bit analog-to-digital converter. - What is the maximum sample rate of the MAX1437B?
The MAX1437B can sample up to 50Msps. - What is the supply voltage for the MAX1437B?
The MAX1437B operates from a single 1.8V supply. - How much power does the MAX1437B consume per channel?
The MAX1437B consumes 96mW per channel in normal operation. - What is the signal-to-noise ratio (SNR) of the MAX1437B at 5.3MHz?
The SNR is 70.2dB at 5.3MHz. - What type of output does the MAX1437B provide?
The MAX1437B provides serial LVDS outputs with pin-selectable LVDS/SLVS mode. - What is the differential input voltage range of the MAX1437B?
The differential input voltage range is 1.4V P-P. - Does the MAX1437B have an internal reference?
Yes, the MAX1437B has an on-chip 1.24V precision bandgap reference. - What is the operating temperature range of the MAX1437B?
The operating temperature range is -40°C to +85°C. - Is an evaluation kit available for the MAX1437B?
Yes, the MAX1437BEVKIT is available for performance evaluation.
