Table of content
1. The Growing Need for Home Care and Handheld / Compact Ultrasound Systems
The spread of new coronavirus infections has triggered a growing need for home medical care and telemedicine in recent years. In addition, there are concerns about the increasing number of elderly and disabled patients who cannot visit hospitals or face difficulties in visiting medical institutions due to their distance from home. Therefore, handheld/portable diagnostic ultrasound systems are a type of medical equipment that are expected to become increasingly popular. Compact and portable diagnostic ultrasound devices will enable doctors to examine patients more accurately during house calls and assist in the diagnosis when only an interview or palpation can be scheduled. Handheld/portable ultrasound systems must be compact, lightweight, and have a long battery life, with a high image quality, to enable an accurate diagnosis.
For more than 15 years, ABLIC's medical device ICs have been widely used in ultrasound systems in medical institutions and clinics around the world. Our long-standing track record and high reliability of our applications/ICs make them indispensable components for handheld and portable ultrasound systems. To illustrate, ABLIC's ultrasound device ICs (transmitter pulser / linear amplifier / high voltage switch) are combined in an optimized circuit configuration to reduce the number of components and achieve low power consumption.
ABLIC will continue to provide products and solutions to boost your medical device development.
2. ABLIC's Innovation for Handheld / Compact Ultrasound Systems
The Industry's First 64-ch Transmitter/Receiver ICs for Ultrasound Diagnostic Systems
Offers Ideal Solution for Handheld / Compact Ultrasound Systems
By combining the industry's first 64-channel transmitter/receiver IC, high-speed ADC, and ±150V high-voltage analog switch, a handheld/compact ultrasound imaging system with a simple design can be achieved.
- The industry's first 64-channel ultrasound signal transmitter circuit and echo signal receiver circuit in a single package
- A high-speed 8-channel ADC that receives signal processing and a 32-channel high-voltage analog switch for piezoelectric transducer element selection are used.
- An AFE for diagnostic ultrasound systems can be configured with fewer components, taking integration into account in the probe.
Circuit configuration
- 64ch transmitter/receiver IC S-US75 series
- 8ch 12-bit 50MSPS ADC S-US85A1
- 32ch high voltage analog switch S-UM6522E
Features of the 64-ch transmitter/receiver IC S-US75 series
In the conventional set-up, two 32-channel transmitter ICs and two 32-channel receiver ICs were required to configure a 64-channel transmitter/receiver circuit. The S-US75 series is the industry's first 64-channel transmitter circuit and 64-channel receiver circuit on a single chip, making it possible to configure a 64-channel transmitter/receiver circuit with a single S-US75 series, contributing to a reduction in the number of components and mounting space for the application.
The S-US75 series is ideal for miniaturization in handheld/compact ultrasound system development. Additionally, ABLIC's low current consumption technology reduces AFE power consumption, which is important in handheld/compact ultrasound system development.
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Comparison of conventional and ABLIC's solution
Power Consumption Comparison
64-ch Transmitter/Receiver IC S-US75 series
Transmitter/Receiver IC S-US7502 / S-US7502A
Transmitter
- 64-ch programmable 3-level high-voltage ultrasound transmit beamformer
- 0 to ±100V output voltage
- ±0.7A source and sink current for high-voltage pulses
- 10 ns min. pulse width with 5ns resolution at 100 MHz clock
Receiver
- 64-channel low-noise amplifier (LNA) with time gain control (TGC) function and post-amplifier (PAMP)
- 0 to 42dB selectable TGC range
- 6dB/12dB selectable post-amp (PAMP)
Common
- Serial Peripheral Interface with 4 SDATA ports (LVDS or 1.8 to 3.3V CMOS)
- 425pin 15x15mm BGA package
Transmitter/receiver IC S-US7503
Transmitter
- 64-channel programmable 2-level high-voltage ultrasound transmit beamformer
- 0 to ±140V output voltage
- ±0.7A source and sink current for high-voltage pulses
- 10 ns min. pulse width with 5ns resolution at 100 MHz clock
Receiver
- 64-channel low-noise amplifier (LNA) with time gain control (TGC) function and post-amplifier (PAMP)
- 0 to 42dB selectable TGC range
- 6dB/12dB selectable post-amp (PAMP)
Common
- Serial Peripheral Interface with 4 SDATA ports (LVDS or 1.8 to 3.3V CMOS)
- 425pin 15x15mm BGA package
8ch LVDS output High-speed ADC S-US85A1
Features
- 12-bit resolution 8-channel ADC in offset binary format
- 69.8 dB SNR at 5.3 MHz
- 78.8 dBc SFDR at 5.3 MHz
- 50 Msps sampling rate
- Fully differential analog input
- Serial 300 MHz LVDS output
- Offset binary digital code LVDS output
- On-chip Band Gap Reference 1.22 V
- Wide differential analog input 2.0 Vp-p
- 1.8 V to 3.3 V CMOS control logic interface
- Automatic thermal protection with indicator
- Latch-up free, low crosstalk by SOI CMOS technology
- Serial Peripheral Interface (SPI) for access to Register
- Selectable Normal and Low Power operation with register
- 138 mW (Normal mode) and 78 mW (Low Power mode) per channel.
- 84-lead 10 × 10mm QFN package (RoHS compliant)
Explore ABLIC's IC for ultrasound systems.
| S-US75 Series | 64ch transmitter/receiver IC | ||
| S-US85A1 | 8ch 12-bit 50MSPS ADC | ||
| S-UM6522E | Low charge injection 32-channel 8Ω high-voltage analog switch |     |
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| S-US5591 | 32-channel programmable 3-level ultrasound transmit beamformer | |
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| S-US55D2 | 8-channel DAC with differential output and 2-bit/channel CMOS output pattern generator for ultrasound transmitters | |