AFE5816
- 16-Channel, AFE for Ultrasound Applications:
- Input Attenuator, LNA, LPF, ADC, and
CW Mixer - Optimized Signal Chains for TGC and CW Modes
- Digital Time Gain Compensation (DTGC)
- Total Gain Range: 6 dB to 45 dB
- Linear Input Range: 1 VPP
- Input Attenuator, LNA, LPF, ADC, and
- 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:
- 14-dB to 45-dB Gain with 0.125-dB Step
- Low Input Current Noise: 1.2 pA/√Hz
- 3rd-Order, Linear-Phase, Low-Pass Filter (LPF):
- 10 MHz, 15 MHz, 20 MHz, and 25 MHz
- Analog-to-Digital Converter (ADC) With Programmable Resolution:
- 14-Bit ADC: 75-dBFS Idle Channel SNR at
65 MSPS - 12-Bit ADC: 72-dBFS Idle Channel SNR at
80 MSPS
- 14-Bit ADC: 75-dBFS Idle Channel SNR at
- LVDS Interface With a Maximum Speed Up to
1 GBPS - Optimized for Noise and Power:
- 90 mW/Ch at 1 nV/√Hz, 65 MSPS, TGC Mode
- 55 mW/Ch at 1.45 nV/√Hz, 40 MSPS,
TGC Mode - 59 mW/Ch, CW Mode
- Excellent Device-to-Device Gain Matching:
- ±0.5 dB (Typical)
- Low Harmonic Distortion: –60-dBc Level
- Fast and Consistent Overload Recovery
- Continuous Wave (CW) Path with:
- Passive Mixer
- Low Close-In Phase Noise of –148 dBc/Hz
at 1-kHz frequency - Phase Resolution: λ / 16
- Supports 16X, 8X, 4X, and 1X CW Clocks
- 12-dB Suppression of 3rd and 5th Harmonics
- Small Package: 15-mm × 15-mm NFBGA-289
The AFE5816 is a highly-integrated, analog front-end (AFE) solution specifically designed for ultrasound systems where high performance, low power, and small size are required.
The AFE5816 is an integrated analog front-end (AFE) optimized for medical ultrasound application. The AFE5816 is a multichip module (MCM) device with two dies: VCA and ADC_CONV. Each die has total of 16 channels.
Each channel in the VCA die can be configured in two modes: time gain compensation (TGC) mode and 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 14 dB to 45 dB. The LPF cutoff frequency can be configured at 10 MHz, 15 MHz, 20 MHz, or 25 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. CW mode supports three clock modes: 16X, 8X, and 4X.
Each channel of the ADC_CONV die has a high-performance analog-to-digital converter (ADC) with a programmable resolution of 14 bits or 12 bits. The ADC achieves 75-dBFS signal-to-noise ratio (SNR) in 14-bit mode, and 72-dBFS SNR in 12-bit mode. This ADC provides excellent SNR at low-channel gain. The devices operate at maximum speeds of 65 MSPS and 80 MSPS, providing 14-bit and 12-bit output, respectively. The ADC is designed to scale power with sampling rate. The output interface of the ADC is a low-voltage differential signaling (LVDS) interface that can easily interface with low-cost field-programmable gate arrays (FPGAs).
The AFE5816 also allows various power and noise combinations to be selected for optimizing system performance. Therefore, these devices are suitable ultrasound AFE solutions for systems with strict battery-life requirements. The AFE5816 is available in a 15-mm × 15-mm NFBGA-289 package (ZAV package, S-PBGA-N289) and is specified for operation from –40°C to +85°C. The device is also pin-to-pin compatible with the AFE5818 family.
技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | AFE5816 16-Channel Ultrasound AFE With 90-mW/Channel Power, 1-nV/√Hz Noise, 14-Bit, 65-MSPS or 12-Bit, 80-MSPS ADC and Passive CW Mixer データシート (Rev. E) | PDF | HTML | 2017年 7月 27日 | ||
| アプリケーション・ノート | Precision Sum Circuit Support Hi Output Current Multiple AFEs in Ultasound App | 2017年 11月 20日 | ||||
| アプリケーション・ノート | Introduction to Ultrasound | 2017年 7月 10日 | ||||
| アプリケーション・ノート | Time Gain Control (Compensation) in Ultrasound Applications | 2016年 12月 2日 | ||||
| EVM ユーザー ガイド (英語) | AFE5816 EVM User Guide (Rev. A) | 2016年 2月 17日 | ||||
| 技術記事 | Offset correction improves the next generation of heart-rate smart watches | 2015年 8月 24日 | ||||
| 技術記事 | JESD204B: Is it for you? | 2014年 3月 14日 | ||||
| 技術記事 | A new way to illuminate the human condition | 2013年 12月 30日 | ||||
| 技術記事 | Oximeter signaling: There’s more than meets the eye | 2013年 12月 4日 |
設計および開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページを表示してください。
AFE5816EVM — AFE5816 評価モジュール
The AFE5816EVM is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5816EVM integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also (...)
AFE58JD16EVM — AFE58JD16 評価モジュール
The AFE58JD16EVM is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE58JD16EVM integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also (...)
PSPICE-FOR-TI — TI Design / シミュレーション・ツール向け PSpice®
設計とシミュレーション向けの環境である PSpice for TI (...)
| パッケージ | ピン数 | ダウンロード |
|---|---|---|
| NFBGA (ZAV) | 289 | オプションの表示 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL rating / リフローピーク温度
- MTBF/FIT 推定値
- 材料 (内容)
- 認定試験結果
- 継続的な信頼性モニタ試験結果
推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス・デザインが存在する可能性があります。