產品詳細資料

2nd harmonic (dBc) 70 3rd harmonic (dBc) 76 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 2 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 2400 Gain (max) (dB) 26 Gain (min) (dB) 6 Step size (dB) 0.25 Type RF VGA Iq per channel (typ) (mA) 50 Number of channels 2 Rating Catalog Operating temperature range (°C) -40 to 85 Slew rate (typ) (V/µs) 6000 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
2nd harmonic (dBc) 70 3rd harmonic (dBc) 76 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 2 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 2400 Gain (max) (dB) 26 Gain (min) (dB) 6 Step size (dB) 0.25 Type RF VGA Iq per channel (typ) (mA) 50 Number of channels 2 Rating Catalog Operating temperature range (°C) -40 to 85 Slew rate (typ) (V/µs) 6000 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
WQFN (NJK) 36 36 mm² 6 x 6
  • Small Signal Bandwidth: 2400 MHz
  • OIP3 @ 100 MHz: 42 dBm
  • HD3 @ 100 MHz: –100 dBc
  • Noise Figure: 9.7 dB
  • Voltage Gain: 26 dB to 6 dB
  • Voltage Gain Step Size: 0.25 dB
  • Input Impedance: 100 Ω
  • Parallel and Serial Gain Control
  • Power Down Capability
  • Small Signal Bandwidth: 2400 MHz
  • OIP3 @ 100 MHz: 42 dBm
  • HD3 @ 100 MHz: –100 dBc
  • Noise Figure: 9.7 dB
  • Voltage Gain: 26 dB to 6 dB
  • Voltage Gain Step Size: 0.25 dB
  • Input Impedance: 100 Ω
  • Parallel and Serial Gain Control
  • Power Down Capability

The LMH6882 is a high-speed, high-performance programmable differential amplifier. With a bandwidth of 2.4 GHz and high linearity of 42 dBm OIP3, the LMH6882 is suitable for a wide variety of signal conditioning applications.

The LMH6882 programmable differential amplifier combines the best of both fully differential amplifiers and variable-gain amplifiers. The device offers superior noise and distortion performance over the entire gain range without external resistors, enabling the use of just one device and one design for multiple applications requiring different gain settings.

The LMH6882 is an easy-to-use amplifier that can replace both fully differential, fixed-gain amplifiers as well as variable-gain amplifiers. The LMH6882 requires no external gain-setting components and supports gain settings from 6 dB to 26 dB with small, accurate 0.25-dB gain steps. As shown in the adjacent voltage gain chart the gain steps are very accurate over the entire gain range. With an input impedance of 100 Ω, the LMH6882 is easy to drive from a variety of sources such as mixers or filters. The LMH6882 also supports 50-Ω single-ended signal sources and supports DC- and AC-coupled applications.

Parallel gain control allows the LMH6882 to be soldered down in a fixed-gain so that no control circuit is required. If dynamic gain control is desired, the LMH6882 can be changed with SPI™ serial commands or with the parallel pins.

The LMH6882 is fabricated in TI’s CBiCMOS8 proprietary complementary silicon germanium process and is available in a space-saving, thermally enhanced 36-pin WQFN package. The same amplifier is offered in a single package as the LMH6881.

The LMH6882 is a high-speed, high-performance programmable differential amplifier. With a bandwidth of 2.4 GHz and high linearity of 42 dBm OIP3, the LMH6882 is suitable for a wide variety of signal conditioning applications.

The LMH6882 programmable differential amplifier combines the best of both fully differential amplifiers and variable-gain amplifiers. The device offers superior noise and distortion performance over the entire gain range without external resistors, enabling the use of just one device and one design for multiple applications requiring different gain settings.

The LMH6882 is an easy-to-use amplifier that can replace both fully differential, fixed-gain amplifiers as well as variable-gain amplifiers. The LMH6882 requires no external gain-setting components and supports gain settings from 6 dB to 26 dB with small, accurate 0.25-dB gain steps. As shown in the adjacent voltage gain chart the gain steps are very accurate over the entire gain range. With an input impedance of 100 Ω, the LMH6882 is easy to drive from a variety of sources such as mixers or filters. The LMH6882 also supports 50-Ω single-ended signal sources and supports DC- and AC-coupled applications.

Parallel gain control allows the LMH6882 to be soldered down in a fixed-gain so that no control circuit is required. If dynamic gain control is desired, the LMH6882 can be changed with SPI™ serial commands or with the parallel pins.

The LMH6882 is fabricated in TI’s CBiCMOS8 proprietary complementary silicon germanium process and is available in a space-saving, thermally enhanced 36-pin WQFN package. The same amplifier is offered in a single package as the LMH6881.

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類型 標題 日期
* Data sheet LMH6882 DC to 2.4-GHz, High-Linearity, Dual, Programmable Differential Amplifier datasheet (Rev. D) PDF | HTML 2015年 12月 6日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
More literature Featured High Speed Differential Amplifiers 2012年 10月 23日
EVM User's guide AN-2268 LMH6882 Evaluation Board 2012年 8月 9日

設計與開發

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開發板

LMH6882EVAL — LMH6882 評估模組

The LMH6882EVAL is an easy to use, fully assembled, evaluation kit for the LMH6882 Programmable Gain Amplifier. The LMH6882EVAL has been designed to provide high performance measurements using single ended test equipment. The LMH6882EVAL has also been designed to be modified by the user for (...)
使用指南: PDF
TI.com 無法提供
模擬型號

LMH6881 TINA-TI Reference Design

SNOM334.TSC (3443 KB) - TINA-TI Reference Design
模擬型號

LMH6881 TINA-TI Spice Model

SNOM335.ZIP (11 KB) - TINA-TI Spice Model
參考設計

TIDA-00094 — 具有可變增益放大器的四通道 250-Msps 數位器參考設計

This reference design shows a quad channel, 14-bit, 250-Msps digitizer with wide input range using the LMH6881 programmable differential amplifier and ADS4449 quad-channel, 14-bit, 250-Msps ADC. This combination allows an input voltage range of approximately 1 Vpp to 100 uVpp (4 dBm to -75 dBm) (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (NJK) 36 Ultra Librarian

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