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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

LMH6640

不推薦在新設計中採用

TFT-LCD 單、16V、軌至軌高輸出運算放大器

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LMH6640 不建議用於新設計
儘管為了支援以前的設計而繼續生產此項產品，但我們並不建議用在新設計上。考量下列其中一項替代產品：
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功能相似於所比較的產品
LMH6642 現行 單通道、低功耗、130MHz、75mA 軌至軌輸出放大器 INA121 has lower offset and higher CMRR, with half the power consumption

LMH6640

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 16 GBW (typ) (MHz) 190 BW at Acl (MHz) 190 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 170 Vn at flatband (typ) (nV√Hz) 15 Vn at 1 kHz (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 4 Vos (offset voltage at 25°C) (max) (mV) 1 Rail-to-rail In to V-, Out Features C-Load Drive Rating Catalog Operating temperature range (°C) to CMRR (typ) (dB) 90 Input bias current (max) (pA) 2600000 Offset drift (typ) (µV/°C) 0 Iout (typ) (mA) 110 2nd harmonic (dBc) 71 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 16 GBW (typ) (MHz) 190 BW at Acl (MHz) 190 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 170 Vn at flatband (typ) (nV√Hz) 15 Vn at 1 kHz (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 4 Vos (offset voltage at 25°C) (max) (mV) 1 Rail-to-rail In to V-, Out Features C-Load Drive Rating Catalog Operating temperature range (°C) to CMRR (typ) (dB) 90 Input bias current (max) (pA) 2600000 Offset drift (typ) (µV/°C) 0 Iout (typ) (mA) 110 2nd harmonic (dBc) 71 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • (VS = 16V, RL= 2 kΩ to V+/2, 25°C, Typical Values Unless Specified)
  • Supply current (no load) 4 mA
  • Output resistance (closed loop 1 MHz) 0.35Ω
  • −3 dB BW (AV = 1) 190 MHz
  • Settling time (±0.1%, 2 VPP) 35 ns
  • Input common mode voltage −0.3V to 15.1V
  • Output voltage swing 100 mV from rails
  • Linear output current ±100 mA
  • Total harmonic distortion (2 VPP, 5 MHz) −64 dBc
  • Fully characterized for: 5V & 16V
  • No output phase reversal with CMVR exceeded
  • Differential gain (RL = 150Ω) 0.12%
  • Differential phase (RL = 150Ω) 0.12°

All trademarks are the property of their respective owners.

  • (VS = 16V, RL= 2 kΩ to V+/2, 25°C, Typical Values Unless Specified)
  • Supply current (no load) 4 mA
  • Output resistance (closed loop 1 MHz) 0.35Ω
  • −3 dB BW (AV = 1) 190 MHz
  • Settling time (±0.1%, 2 VPP) 35 ns
  • Input common mode voltage −0.3V to 15.1V
  • Output voltage swing 100 mV from rails
  • Linear output current ±100 mA
  • Total harmonic distortion (2 VPP, 5 MHz) −64 dBc
  • Fully characterized for: 5V & 16V
  • No output phase reversal with CMVR exceeded
  • Differential gain (RL = 150Ω) 0.12%
  • Differential phase (RL = 150Ω) 0.12°

All trademarks are the property of their respective owners.

The LMH6640 is a voltage feedback operational amplifier with a rail-to-rail output drive capability of 100 mA. Employing TI’s patented VIP10 process, the LMH6640 delivers a bandwidth of 190 MHz at a current consumption of only 4mA. An input common mode voltage range extending to 0.3V below the V− and to within 0.9V of V+, makes the LMH6640 a true single supply op-amp. The output voltage range extends to within 100 mV of either supply rail providing the user with a dynamic range that is especially desirable in low voltage applications.

The LMH6640 offers a slew rate of 170 V/µs resulting in a full power bandwidth of approximately 28 MHz with 5V single supply (2 VPP, −1 dB). Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic for any gain setting including +1, and excellent specifications for driving video cables including total harmonic distortion of −64 dBc @ 5 MHz, differential gain of 0.12% and differential phase of 0.12°.

The LMH6640 is a voltage feedback operational amplifier with a rail-to-rail output drive capability of 100 mA. Employing TI’s patented VIP10 process, the LMH6640 delivers a bandwidth of 190 MHz at a current consumption of only 4mA. An input common mode voltage range extending to 0.3V below the V− and to within 0.9V of V+, makes the LMH6640 a true single supply op-amp. The output voltage range extends to within 100 mV of either supply rail providing the user with a dynamic range that is especially desirable in low voltage applications.

The LMH6640 offers a slew rate of 170 V/µs resulting in a full power bandwidth of approximately 28 MHz with 5V single supply (2 VPP, −1 dB). Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic for any gain setting including +1, and excellent specifications for driving video cables including total harmonic distortion of −64 dBc @ 5 MHz, differential gain of 0.12% and differential phase of 0.12°.
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類型 標題 日期
* Data sheet LMH6640 TFT-LCD Single, 16V Rail-to-Rail High Output Operational Amplifier datasheet (Rev. B) 2013年 3月 18日

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開發板

LMH730216 — 適用於採用 5-6 針腳 SOT-23 封裝的高速單運算放大器的評估板

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amps that are offered in the 5-/6-pin SOT-23 package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)

使用指南: PDF
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模擬型號

LMH6640 TINA-TI Reference Design (Rev. A)

SNOM469A.TSC (312 KB) - TINA-TI Reference Design
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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