- 制造厂商:TI
- 产品类别:放大器
- 技术类目:可编程和可变增益放大器(PGA 和 VGA)
- 功能描述:900MHz、数字控制、可变增益放大器
- 点击这里打开及下载LMH6518的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
The LMH6518 device is a digitally controlled variable gain amplifier whose total gain is varied from −1.16 dB to 38.8 dB for a 40 dB range in 2-dB steps. The −3-dB bandwidth is 900 MHz at all gains. Gain accuracy at each setting is typically 0.1 dB. When used in conjunction with TI's Gsample/second (Gsps) ADC with adjustable full-scale (FS) range, the LMH6518 gain adjustment accommodates full scale input signals from 6.8 mVPP to 920 mVPP to get 700 mVPP nominal at the ADC input. The auxiliary output (+OUT AUX and −OUT AUX) follows the main output and is intended for use in oscilloscope trigger function circuitry but may have other uses in other applications.
The LMH6518 gain is programmed through a SPI-1 compatible serial bus. A signal path combined gain resolution of 8.5 mdB is achieved when the device's gain and the Gsps ADC’s FS input are both manipulated. Inputs and outputs are DC-coupled. The outputs are differential with individual common mode (CM) voltage control (for main and auxiliary outputs), and have a selectable bandwidth limiting circuitry (common to both main and auxiliary) of 20, 100, 200, 350, 650, 750 MHz or full bandwidth.
- Gain Range: 40 dB
- Gain Step Size: 2 dB
- Combined Gain Resolution With Gsps ADCs: 8.5 mdB
- Minimum Gain: ?1.16 dB
- Maximum Gain: 38.8 dB
- ?3 dB BW: 900 MHz
- Rise and Fall Time: <500 ps
- Recovery Time: <5 ns
- Propagation Delay Variation: 100 ps
- HD2 at 100 MHz: ?50 dBc
- HD3 at 100 MHz: ?53 dBc
- Input-Referred Noise (Maximum Gain): 0.98 nV/√Hz
- Overvoltage Clamps for Fast Recovery
- Power Consumption: Auxiliary Turned Off 1.1 W to 0.75 W
- PGA/VGA
- PGA
- Number of channels (#)
- 1
- BW @ Acl (MHz)
- 900
- Vs (Max) (V)
- 5.25
- Vs (Min) (V)
- 4.75
- Acl, min spec gain (V/V)
- 0.87
- Gain (Max) (dB)
- 38.8
- Architecture
- Fully Differential ADC Driver
- Slew rate (Typ) (V/us)
- 760
- Operating temperature range (C)
- -40 to 85
- Features
- Digital Gain Set, Single-ended to Differential conversion, Integrated Clamps
LMH6518的完整型号有:LMH6518SQ/NOPB、LMH6518SQE/NOPB、LMH6518SQX/NOPB,以下是这些产品的关键参数及官网采购报价:
LMH6518SQ/NOPB,工作温度:-40 to 85,封装:WQFN (RGH)-16,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LMH6518SQ/NOPB的批量USD价格:6.32(1000+)
LMH6518SQE/NOPB,工作温度:-40 to 85,封装:WQFN (RGH)-16,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LMH6518SQE/NOPB的批量USD价格:6.32(1000+)
LMH6518SQX/NOPB,工作温度:-40 to 85,封装:WQFN (RGH)-16,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LMH6518SQX/NOPB的批量USD价格:5.267(1000+)
LMH6518 GUI Set Up Files
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