AFE5832
- 32-Channel, AFE for Ultrasound Applications:
- Input Attenuator, LNA, LPF, ADC,
and CW Mixer - Digital Time Gain Compensation (DTGC)
- Total Gain Range: 12 dB to 51 dB
- Linear Input Range: 800 mVPP
- Input Attenuator, LNA, LPF, ADC,
- Input Attenuator With DTGC:
- 8-dB to 0-dB Attenuation With 0.125-dB Step
- Supports Matched Impedance for:
- 50-Ω to 800-Ω Source Impedance
- Low-Noise Amplifier (LNA) With DTGC:
- 20-dB to 51-dB Gain With 0.125-dB Step
- Low Input Current Noise: 1.2 pA/√Hz
- 3rd-Order, Linear-Phase, Low-Pass Filter (LPF):
- 5 MHz, 7.5 MHz, 10 MHz, and 12.5 MHz
- 16 ADCs Converting at 12-Bit, 80 MSPS or 10-bit, 100 MSPS:
- Each ADC Converts Two Sets of Inputs at Half Rate
- 12-Bit ADC: 72-dBFS SNR
- 10-Bit ADC: 61-dBFS SNR
- Optimized for Noise and Power:
- 35 mW/Ch at 2.1 nV/√Hz, 40 MSPS
- 42 mW/Ch at 1.4 nV/√Hz, 40 MSPS
- 52 mW/Ch at 1.3 nV/√Hz, 40 MSPS
- 60 mW/Ch in CW Mode
- Excellent Device-to-Device Gain Matching:
- ±0.5 dB (Typical)
- Low Harmonic Distortion: –55 dBc
- Fast and Consistent Overload Recovery
- Continuous Wave (CW) Path With:
- Low Close-In Phase Noise of –151 dBc/Hz
at 1-kHz Frequency Offset Off 2.5-MHz Carrier - Phase Resolution: λ / 16
- Supports 16X CW Clock
- 12-dB Suppression on Third and Fifth Harmonics
- Low Close-In Phase Noise of –151 dBc/Hz
- LVDS Interface With a Speed Up to 1 Gbps
- Small Package: 15-mm × 15-mm NFBGA-289
The AFE5832 device is a highly-integrated, analog front-end solution specifically designed for ultrasound systems where high performance, low power, and small size are required.
The AFE5832 is an integrated analog front-end (AFE) optimized for medical ultrasound application. The device is realized through a multichip module (MCM) with three dies: two voltage-controlled amplifier (VCA) dies and one analog-to-digital converter (ADC) die. Each VCA die has 16 channels and the ADC die converts all of the 32 channels.
Each channel in the VCA die is configured in either of two modes: time gain compensation (TGC) mode or continuous wave (CW) mode. In TGC mode, each channel includes an input attenuator (ATTEN), a low-noise amplifier (LNA) with variable-gain, and a third-order, low-pass filter (LPF). The attenuator supports an attenuation range of 8 dB to 0 dB, and the LNA supports gain ranges from 20 dB to 51 dB. The LPF cutoff frequency can be configured at 5 MHz, 7.5 MHz, 10 MHz, or 12.5 MHz to support ultrasound applications with different frequencies. In CW mode, each channel includes an LNA with a fixed gain of 18 dB, and a low-power passive mixer with 16 selectable phase delays. Different phase delays can be applied to each analog input signal to perform an on-chip beamforming operation. A harmonic filter in the CW mixer suppresses the third and fifth harmonic to enhance the sensitivity of the CW Doppler measurement.
The ADC die has 16 physical ADCs. Each ADC converts two sets of outputs – one from each VCA die. The ADC is configured to operate with a resolution of 12 bits or 10 bits. The ADC resolution can be traded off with conversion rate, and operates at maximum speeds of 80 MSPS and 100 MSPS at 12-bit and 10-bit resolution, respectively. The ADC is designed to scale its power with sampling rate. The output interface of the ADC comes out through a low-voltage differential signaling (LVDS) which can easily interface with low-cost field-programmable gate arrays (FPGAs).
The AFE5832 also allows various power and noise combinations to be selected for optimizing system performance. Therefore, this device is a suitable ultrasound AFE solution for systems with strict battery-life requirements.
추가 정보 요청
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기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | AFE5832 32-Channel Ultrasound AFE With 35-mW/Channel Power, 2.1 nV/√Hz Noise, 12-Bit, 40-MSPS or 10-Bit, 50-MSPS Output, Passive CW Mixer and LVDS Interface datasheet (Rev. A) | PDF | HTML | 2018/04/19 |
| Application note | Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) | PDF | HTML | 2023/05/16 | |
| Application brief | AFE5832LP and AFE5832 Ultrasound AFE for Ultra-Portable Applications | 2019/01/04 | ||
| EVM User's guide | AFE5832 32-Channel Analog Front-End Evaluation Module User's Guide | 2017/08/25 | ||
| Application note | Introduction to Ultrasound | 2017/07/10 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
AFE5832EVM — LVDS 인터페이스 및 패시브 CW 믹서를 지원하는 AFE5832 32채널 초음파 AFE 평가 모듈
AFE5832 평가 모듈(EVM)은 AFE5832 장치를 평가하기 위한 플랫폼입니다. AFE5832는 뛰어난 성능과 작은 크기가 필요한 초음파 시스템을 위해 특별히 설계된 고집적 아날로그 프론트 엔드(AFE) 솔루션입니다. 이 장치는 완전한 타임 게인 제어(TGC) 영상 경로와 연속파 도플러(CWD) 경로를 통합하였습니다. 32채널 장치를 사용하면 최적의 시스템 성능을 위해 다양한 전력 및 잡음 조합을 구현할 수 있습니다. 따라서 AFE5832은 고급형 및 휴대형 시스템에 적합한 초음파 AFE 솔루션입니다.
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| NFBGA (ZBV) | 289 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.