Overview
The MAX1438ECQ+D is a high-performance, octal, 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This device is optimized for low-power and high-dynamic performance, making it ideal for demanding applications such as medical imaging instrumentation and digital communications. The MAX1438ECQ+D features fully differential inputs, a pipelined architecture, and digital error correction, ensuring accurate and reliable conversion of analog signals to digital data. It operates from a single 1.8V supply, consuming only 913mW (114mW per channel), and offers a power-down mode for idle periods to further reduce power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package/Case | 100-TQFP-EP (14x14) |
| Resolution | 12-bit |
| Number of ADCs | 8 |
| Number of Input Channels | 8 |
| Sampling Rate | 65 Msps |
| Digital Interface Type | Serial LVDS |
| Input Type | Voltage, Differential |
| Voltage Supply Source | Single, 1.8V |
| Typical Power Dissipation | 913 mW |
| Maximum Power Dissipation | 1035 mW |
| Integral Nonlinearity Error | ±2.5 LSB |
| Full Scale Error | -3.5/2% FSR |
| Signal to Noise Ratio | 69.9 dB (Typ) at 5.3 MHz |
| Sample and Hold | Yes |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 85°C |
| Mounting | Surface Mount |
| Pin Count | 100 |
Key Features
- Excellent Dynamic Performance: 69.9 dB SNR at 5.3 MHz, 95 dBc SFDR at 5.3 MHz, and 85 dB channel isolation.
- Ultra-Low Power: 114 mW per channel in normal operation and a power-down mode for idle periods.
- Serial LVDS Outputs: Supports up to 30 inches FR-4 backplane connections and pin-selectable LVDS/SLVS mode.
- Fully Differential Analog Inputs: With a wide differential input voltage range of 1.4 Vp-p.
- On-Chip 1.24V Precision Bandgap Reference: With the option to use an external reference for increased accuracy.
- Clock Duty-Cycle Equalizer: Compensates for wide variations in clock duty cycle.
- Compact 100-Pin TQFP Package with Exposed Pad: Suitable for the extended industrial temperature range (-40°C to +85°C).
Applications
- Instrumentation: Ideal for precise measurement and data acquisition in various instruments.
- Multichannel Communications: Suitable for applications requiring multiple channels of high-speed data conversion.
- Ultrasound and Medical Imaging: Optimized for the demanding requirements of medical imaging and ultrasound systems.
Q & A
- What is the resolution of the MAX1438ECQ+D ADC?
The MAX1438ECQ+D has a resolution of 12 bits. - How many ADC channels does the MAX1438ECQ+D have?
The MAX1438ECQ+D features 8 ADC channels. - What is the sampling rate of the MAX1438ECQ+D?
The sampling rate is 65 Msps. - What type of digital interface does the MAX1438ECQ+D use?
The MAX1438ECQ+D uses a serial LVDS digital interface. - What is the typical power consumption of the MAX1438ECQ+D?
The typical power consumption is 913 mW, with 114 mW per channel in normal operation. - Does the MAX1438ECQ+D support power-down mode?
Yes, the MAX1438ECQ+D features a power-down mode for idle periods. - What is the operating temperature range of the MAX1438ECQ+D?
The operating temperature range is -40°C to +85°C. - What type of package does the MAX1438ECQ+D come in?
The MAX1438ECQ+D is packaged in a 100-pin TQFP with an exposed pad. - Is an evaluation kit available for the MAX1438ECQ+D?
Yes, an evaluation kit (MAX1438EVKIT) is available for the MAX1438ECQ+D. - What is the signal-to-noise ratio (SNR) of the MAX1438ECQ+D at 5.3 MHz?
The SNR is 69.9 dB (typ) at 5.3 MHz.
