AFE5804 用于超声波的 8 通道模拟前端
AFE5804 同类产品
- AFE5805 - 器件与被比较器件具有相同的功能和引脚排列，但并不完全等效。 Same functionality and pinout to AFE5804 with lower noise at 0.85nV/rtHz
AFE5804 说明
The AFE5804 is a complete analog front-end device specifically designed for ultrasound systems that require low power and small size.
The AFE5804 consists of eight channels, including a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), low-pass filter (LPF), and a 12-bit analog-to-digital converter (ADC) with low voltage differential signaling (LVDS) data outputs.
The LNA gain is set for 20dB gain and has excellent noise and signal handling capabilities, including fast overload recovery. VCA gain can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the AFE5804.
The PGA can be programmed for gains of 20dB, 25dB, 27dB, and 30dB. The internal low-pass filter can also be programmed to 12.
|
AFE5801 |
AFE5804 |
AFE5805 |
AFE5851 |
| Input Voltage Noise(Typ)(nV/rtHz) |
5.5 |
1.23 |
0.85 |
5.5 |
| Input Range(Typ)(mVpp) |
2000 |
280 |
250 |
1000 |
| Power Dissipation(Typ)(mW) |
58 |
101 |
122 |
39 |
| Gain Control Range(Typ)(dB) |
36 |
46 |
46 |
36 |
| Total Max Gain(Typ)(dB) |
31 |
49 |
50 |
31 |
| HD2 Distortion(Typ)(dB) |
-75 |
-45 |
-45 |
-55 |
| Overload Recovery(clock cycle) |
1 |
1 |
1 |
1 |
| Gain Error(Typ)(dB) |
+/-0.5 |
+/-0.5 |
+/- 0.5 |
+/-0.5 |
| Resolution(Bits) |
12 |
12 |
12 |
12 |
| Number of Channels |
8 |
8 |
8 |
16 |
AFE5804 特性
- 8-Channel Complete Analog Front-End:
- LNA, VCA, PGA, LPF, and ADC
- Mode Control for Power/Noise Optimization:
- Low Noise (Full-Channel):
0.89nV/√Hz (TGC Mode I)
1.23nV/√Hz (TGC Mode II)
1.03nV/√Hz (PW Mode)
- Ultra-Low Power:
101mW/Channel (TGC Mode II)
65mW/Channel (CW Mode)
- Low-Noise Pre-Amp (LNA):
- 0.75nV/√Hz
- 20dB Fixed Gain
- 280mVPP Linear Input Range
- Variable-Gain Amplifier:
- PGA Gain Settings: 20dB, 25dB, 27dB, 30dB
- Low-Pass Filter:
- Selectable BW: 12.5MHz, 17MHz
- 2nd-Order, Bessel
- Gain Error: ±0.5dB
- Channel Matching: ±0.25dB
- Clamping
- Fast Overload Recovery: Two Clock Cycles
- 12-Bit Analog-to-Digital Converter:
AFE5804 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| AFE5804ZCF |
ACTIVE |
0 to 70 |
52.70 | 1ku |
BGA (ZCF) | 135 |
160 | JEDEC TRAY (10+1) |
|
AFE5804 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| AFE5804ZCF |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-3-260C-168 HR |
|
AFE5804ZCF |
AFE5804 应用技术支持与电子电路设计开发资源下载
- AFE5804 数据资料 dataSheet 下载.PDF
- TI 德州仪器模拟前端 AFE产品选型与价格参考 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 触摸屏系统中的校准 (PDF 393 KB)
- Using a touch-screen controller’s auxiliary inputs (PDF 149 KB)
- Q4 2007 Issue Analog Applications Journal (PDF 325 KB)
- Reducing Analog Input Noise in Touch Screen Systems (PDF 535 KB)
- Operation Schemes of Touch Screen Controllers (PDF 846 KB)
- Apply TI TSC for Various and Multiple Functions (PDF 316 KB)
- How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch Screen (PDF 271 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Touch Screen Controller Tips (PDF 86 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
AFE5804 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| AFE5804EVM 评估模块 |
AFE5804EVM |
Texas Instruments |
开发电路板/EVM |
| TSW1250EVM 高速 LVDS 解串器和分析系统 |
TSW1250EVM |
Texas Instruments |
开发电路板/EVM |