VCA2615中文资料2 通道可变增益放大器数据手册TI规格书
VCA2615规格书详情
描述 Description
The VCA2615 is a dual-channel, variable gain amplifier consisting of a Low-Noise Preamplifier (LNP) and a Variable-Gain Amplifier (VGA). This combination along with the device features makes it well-suited for a variety of ultrasound systems.
The LNP offers a high level of flexibility to adapt to a wide range of systems and probes. The LNP gain can be programmed to one of four settings (3dB, 12dB, 18dB, 22dB), while maintaining excellent noise and signal handling characteristics. The input impedance of the LNP can be controlled by selecting one of the built-in feedback resistors. This active termination allows the user to closely match the LNP to a given source impedance, resulting in optimized overall system noise performance. The differential LNP outputs are provided either as buffered outputs for further CW processing, or fed directly into the variable-gain amplifier (VGA). Alternatively, an external signal can be applied to the differential VGA inputs through a programmable switch.
Following a linear-in-dB response, the gain of the VGA can be varied over a 52dB range with a 0.2V to 2.5V control voltage common to both channels of the VCA2615. In addition, the overall gain can be switched between a 0dB and +6dB postgain, allowing the user to optimize the output swing of VCA2615 for a variety of high-speed Analog-to-Digital Converters (ADCs). As a means to improve system overload recovery time, the VCA2615 provides an internal clipping function where an externally applied voltage sets the desired clipping level.
The VCA2615 operates on a single +5V supply and is available in a small QFN-48 (7×7mm) or TQFP package.
特性 Features
• VERY LOW NOISE: 0.7nV/Hz
• LOW-NOISE PREAMP (LNP)
• Programmable Gains: 3, 12, 18, 22dB
• Buffered, Differential Outputs for CW Processing
• LOW-NOISE VARIABLE-GAIN AMPLIFIER
• 52dB Gain Control Range
• Switchable Differential Inputs
• BANDWIDTH: 42MHz
• 5V SINGLE SUPPLY
• POWER-DOWN MODES
• TEST EQUIPMENT
技术参数
- 制造商编号
:VCA2615
- 生产厂家
:TI
- Number of channels(#)
:2
- Vs(Min)(V)
:4.75
- Vs(Max)(V)
:5.25
- BW @ Acl(MHz)
:42
- Gain(Max)(dB)
:61
- Slew rate(Typ)(V/us)
:100
- Operating temperature range(C)
:-40 to 85
- Package Group
:TQFP|48VQFN|48
- Package size: mm2:W x L (PKG)
:48TQFP: 81 mm2: 9 x 9 (TQFP|48)48VQFN: 49 mm2: 7 x 7 (VQFN|48)
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
24+ |
TQFP|48 |
70230 |
免费送样原盒原包现货一手渠道联系 |
询价 | ||
TI |
25+23+ |
QFN48 |
19796 |
绝对原装正品全新进口深圳现货 |
询价 | ||
TI |
三年内 |
1983 |
只做原装正品 |
询价 | |||
TI |
25+ |
QFN48 |
3000 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
QFN48 |
1000 |
原装长期供货! |
询价 | |||
TI |
20+ |
TQFP-48 |
500 |
样品可出,优势库存欢迎实单 |
询价 | ||
TI |
20+ |
原装 |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
TI/德州仪器 |
23+ |
QFN48 |
32732 |
原装正品代理渠道价格优势 |
询价 | ||
TI |
24+ |
QFN |
603 |
询价 | |||
TEXAS&BB |
17+ |
QFN48 |
6200 |
100%原装正品现货 |
询价 |