Norwood, Mass.- Analog Devices, Inc. (ADI) has developed a current-to-digital converter module that reduces the cost and complexity of computed tomography (CT) scanner system design. Touted as the industry’s first 256-channel, 24-bit current-to-digital converter module for CT scanners, the ADAS1131 is available in a 15-mm² BGA package with a 0.8-mm pitch. The device uses approximately 33 percent less PCB area than alternative devices that offer only half the channel density, said Analog Devices. The 0.8-mm pitch package enables designers to mount the ADAS1131 on a standard PCB substrate, which is a less costly and higher yield option than high density, specialized PCB substrates requiring laser vias, said the company.
In addition to embedding 256 low-power, low-noise, low-input-current integrators, simultaneous sample-and-hold circuitry, and two high-speed A/D converters with configurable sampling rates, the ADAS1131 module incorporates all associated internal buffers, decoupling and by-pass capacitors for data acquisition, further reducing component count and simplifying board layout. The new converter consumes 3 mW of power per channel at any throughput, which is the same as competing devices that integrate only 128 channels, said the company.
Availability: Available now.
Pricing: The ADAS1131 (24-bit, 256-channel) device is priced at $304.00 each per 1,000 quantity. The price per channel is $1.19/ch.
- Download the data sheet or order an evaluation board: http://www.analog.com/ADAS1131
- Find healthcare application and design information here: http://healthcare.analog.com/en/segment/health.html
- Connect with ADI engineers on EngineerZone™, an online technical support community: https://ez.analog.com/welcome