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放大器
運算放大器 (op amps)
一般用途運算放大器

LM2902-EP

現行

增強型產品四路 26-V 1.2-MHz 運算放大器

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產品規格表

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OPA4991-EP 現行 強化型產品、四路、40-V、4.5-MHz、軌至軌輸入和輸出運算放大器 Rail-to-rail I/O, wider supply range (2.7 V to 40 V), higher gain bandwidth (4.5 MHz), faster slew rate (21 V/µs), lower offset voltage (0.895 mV), lower power (0.56 mA), higher output current (75 mA)

LM2902-EP

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 26 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Rail-to-rail In to V- GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 0.5 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 0.175 Vn at 1 kHz (typ) (nV√Hz) 35 Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Offset drift (typ) (µV/°C) 0 Features Standard Amps Input bias current (max) (pA) 250000 CMRR (typ) (dB) 80 Iout (typ) (A) 0.04 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -2
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 26 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Rail-to-rail In to V- GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 0.5 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 0.175 Vn at 1 kHz (typ) (nV√Hz) 35 Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Offset drift (typ) (µV/°C) 0 Features Standard Amps Input bias current (max) (pA) 250000 CMRR (typ) (dB) 80 Iout (typ) (A) 0.04 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -2
TSSOP (PW) 14 32 mm² 5 x 6.4
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • ESD Protection <500 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model C = 200 pF, R = 0); 1500 V Using Charged Device Model
  • ESD Human Body Model >2 kV Machine Model >200 V and Charge Device Model = 2 kV For K-Suffix Devices.
  • Low Supply-Current Drain Independent of Supply Voltage . . . 0.8 mA Typ
  • Low Input Bias and Offset Parameters:
    • Input Offset Voltage . . . 3 mV Typ
    • Input Offset Current . . . 2 nA Typ
    • Input Bias Current . . . 20 nA Typ
  • Common-Mode Input Voltage Range Includes Ground, Allowing Direct Sensing Near Ground
  • Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage:
    • Non-V devices . . . 26 V
    • V-Suffix devices . . . 32 V
  • V-Suffix devices . . . 32 V D Open-Loop Differential Voltage Amplification . . . 100 V/mV Typ
  • Internal Frequency Compensation

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • ESD Protection <500 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model C = 200 pF, R = 0); 1500 V Using Charged Device Model
  • ESD Human Body Model >2 kV Machine Model >200 V and Charge Device Model = 2 kV For K-Suffix Devices.
  • Low Supply-Current Drain Independent of Supply Voltage . . . 0.8 mA Typ
  • Low Input Bias and Offset Parameters:
    • Input Offset Voltage . . . 3 mV Typ
    • Input Offset Current . . . 2 nA Typ
    • Input Bias Current . . . 20 nA Typ
  • Common-Mode Input Voltage Range Includes Ground, Allowing Direct Sensing Near Ground
  • Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage:
    • Non-V devices . . . 26 V
    • V-Suffix devices . . . 32 V
  • V-Suffix devices . . . 32 V D Open-Loop Differential Voltage Amplification . . . 100 V/mV Typ
  • Internal Frequency Compensation

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

This device consists of four independent high-gain frequency-compensated operational amplifiers that are designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies is possible when the difference between the two supplies is 3 V to 26 V (3 V to 32 V for V-suffixed devices) and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.

Applications include transducer amplifiers, dc amplification blocks, and all the conventional operational-amplifier circuits that now can be more easily implemented in single-supply voltage systems. For example, the LM2902 can be operated directly from the standard 5-V supply that is used in digital systems and easily provides the required interface electronics without requiring additional ±15-V supplies.

This device consists of four independent high-gain frequency-compensated operational amplifiers that are designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies is possible when the difference between the two supplies is 3 V to 26 V (3 V to 32 V for V-suffixed devices) and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.

Applications include transducer amplifiers, dc amplification blocks, and all the conventional operational-amplifier circuits that now can be more easily implemented in single-supply voltage systems. For example, the LM2902 can be operated directly from the standard 5-V supply that is used in digital systems and easily provides the required interface electronics without requiring additional ±15-V supplies.
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技術文件

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類型 標題 日期
* Data sheet Quadruple Operational Amplifier datasheet (Rev. A) 2006年 4月 25日
* Radiation & reliability report LM2902KAVMPWREP Reliability Report 2016年 5月 4日
* Radiation & reliability report LM2902KAVQPWREP Reliability Report 2016年 5月 4日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

LMx24_LM2902 PSpice Model (Rev. C)

SGLM009C.ZIP (21 KB) - PSpice Model
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模擬型號

LMx24_LM2902 Reference Design

SGLM036.ZIP (22 KB) - TINA-TI Reference Design
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模擬型號

LMx24_LM2902 TINA-TI Macro

SGLM037.ZIP (4 KB) - TINA-TI Spice Model
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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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設計工具

CIRCUIT060013 — 具有 T 網路回饋電路的反相放大器

此設計可反轉輸入訊號 VIN，並使用 1000 V/V 或 60 dB 訊號增益。具有 T 回饋網路的反相放大器可在沒有較小 R4 值或超大回饋電阻器值的情況下獲得高增益。
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設計工具

CIRCUIT060015 — 可調式參考電壓電路

此電路結合反相及非反相放大器，讓參考電壓可從負輸入電壓向上調整至輸入電壓。可加入增益以提高最大負參考位準。
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設計工具

CIRCUIT060074 — 具有比較器電路的高壓側電流感測

此高壓側電流感測解決方案使用一個具有軌對軌輸入共模範圍的比較器，若負載電流上升到 1 A 以上，便在比較器輸出 (COMP OUT) 建立過電流警示 (OC 警示) 訊號。此實作中的 OC 訊號為低電位作動。因此當超過 1-A 閾值時，比較器輸出會變低。實作磁滯後會在負載電流降低至 0.5 A (減少 50%) 時，讓 OC-Alert 返回邏輯高狀態。此電路利用開漏輸出比較器，為控制數位邏輯輸入針腳而進行電平轉換輸出高邏輯電平。對於需要驅動 MOSFET 開關閘極的應用，建議使用具推挽輸出的比較器。
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模擬工具

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 (...)
要求
模擬工具

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 (...)
使用指南: PDF
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