AFE5832LP
- 32-Channel AFE for Ultrasound Applications:
- LNA, Attenuator, LPF, ADC, and CW Mixer
- Digital Time Gain Compensation (DTGC)
- Total Gain Range: 0 dB to 48 dB
- Low-Noise Amplifier (LNA) With Programmable Gain:
- Low Current Noise of 1pA/rtHz
- Gain: 21 dB, 18 dB, and 15 dB
- Linear Input Range: up to 700 mVPP
- Programmable Attenuator (ATTEN):
- Attenuation Range (Steps of 0.125 dB):
0 to 36 dB - Digital TGC Engine
- Attenuation Range (Steps of 0.125 dB):
- Programmable Gain Amplifier (PGA):
- Gain: 21 dB, 24 dB, and 27 dB
- Third-Order, Linear-Phase, Low-Pass Filter (LPF):
- Cut-off Frequency From 10 MHz to 25 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 Mode: 72-dBFS SNR
- 10-Bit Mode: 61-dBFS SNR
- TGC Mode Power :
- Lowest Power of 18.5 mW/Ch in Low Power Mode, 4 nV/rtHz, 10-Bit, 20 MSPS, LVDS (2x rate)
- 27.8 mW/Ch at 3 nV/rtHz in Low Noise Mode at 12-Bit, 40 MSPS
- 24.4 mW/Ch at 4 nV/rtHz in Low Power Mode at 12-Bit, 40 MSPS
- Excellent Device-to-Device Gain Matching:
- ±0.5 dB (Typical)
- Harmonic Distortion: –55 dBc level
- Fast and Consistent Overload Recovery
- Continuous Wave (CW) Path With:
- Low Close-In Phase Noise of –148 dBc/Hz at 1-kHz Frequency Offset off 5-MHz Carrier
- Power Consumption With No Signal: 10 mW/Ch
- Phase Resolution: λ/16
- 12-dB Suppression on Third and Fifth Harmonics
- LVDS Interface with a Speed Up to 1-Gbps
- Small Package: 15-mm × 15-mm NFBGA-289
The AFE5832LP is a highly integrated, analog front-end (AFE) solution specifically designed for portable ultrasound systems where high performance, low power, and small size are required.
The device is realized through a multichip module (MCM) with two dies: 1 VCA die and 1 ADC die. The VCA die has 32 channels that interface with the 16 channels of the ADC die. Each ADC channel alternately converts an odd and an even VCA channel.
Each channel in the VCA die can be configured in either of two modes: time-gain-compensation (TGC) mode or continuous wave (CW) mode. In the TGC mode, each channel includes a low-noise amplifier (LNA), a programmable attenuator (ATTEN), a programmable gain amplifier and a third-order, low-pass filter (LPF). The LNA gain is programmable to 21 dB, 18 dB, or 15 dB. The ATTEN supports an attenuation range of 0 dB to 36 dB, with digital control for the attenuation. The PGA provides gain options from 21 dB to 27 dB in steps of 3 dB. The LPF cutoff frequency can be set between 10 MHz and 25 MHz to support ultrasound applications with different frequencies. In the CW mode, the output of the LNA goes to 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 16 channels of the ADC die can be configured to operate with a resolution of 12 bits or 10 bits. The ADC resolution can be traded off with conversion rate and can operate at maximum speeds of 80 MSPS and 100 MSPS at 12-bit and 10-bit resolution, respectively. Because each ADC alternately converts two VCA channels, the resulting maximum sample rate of each of the 32 channels of the AFE is 40 MSPS and 50 MSPS in the 12-bit and 10-bit modes, 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).
A very low-power AFE solution makes it suitable for system with strict battery-life requirement.
The AFE is available in a 15 mm × 15 mm 289-pin NFBGA package and is pin-compatible with the AFE5832 family.
추가 정보 요청
전체 데이터 시트 및 추가 설계 리소스를 사용할 수 있습니다. 지금 요청
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | AFE5832LP 32-Channel Ultrasound AFE With 18.5-mW/Channel Power, 4-nV/√Hz, 12-Bit, 40-MSPS or 10-Bit, 50-MSPS Output and Passive CW Mixer datasheet | PDF | HTML | 2018/12/12 |
| Application note | Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) | PDF | HTML | 2023/05/16 | |
| Application note | Smart Ultrasound Probes Solution | 2019/07/19 | ||
| Application brief | AFE5832LP and AFE5832 Ultrasound AFE for Ultra-Portable Applications | 2019/01/04 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
AFE5832LPEVM — LVDS 인터페이스 및 패시브 CW 믹서를 지원하는 AFE5832LP 저전력 32채널 초음파 AFE 평가 모듈
AFE5832LP 평가 모듈(EVM)은 AFE5832LP 장치를 평가하기 위한 플랫폼입니다. AFE5832LP는 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 AFE5832LP는 고급형 및 휴대형 시스템에 적합한 초음파 AFE 솔루션입니다.
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| NFBGA (ZAV) | 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.