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放大器
運算放大器 (op amps)
一般用途運算放大器

LM2902-Q1

現行

車用四路 26-V 1.2-MHz 2-mV 偏移電壓運算放大器

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LM2902B-Q1 現行 車用四路 36-V 1.2-MHz 運算放大器 Wider supply range (3 V to 36 V), lower offset voltage (3 mV)

LM2902-Q1

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 Automotive Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 7 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 Automotive Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 7 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
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • AEC Q-100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C
    • Device HBM ESD classification 2
    • Device CDM ESD classification C5
  • Wide supply range of:
    • 3 V to 36 V (LM2902B-Q1 and LM2902BA-Q1)
    • 3 V to 32 V (LM2902KV and LM2902KAV)
    • 3 V to 26 V (all other products)
  • Input offset voltage maximum at 25°C of:
    • 2 mV (LM2902BA-Q1 and LM2902KAV)
    • 3 mV (LM2902B-Q1)
    • 7 mV (all other products)
  • Internal RF and EMI filter (LM2902B-Q1 and LM2902BA-Q1)
  • Supply-current of 175 µA per channel, typical
  • Unity-gain bandwidth of 1.2 MHz
  • Common-mode input voltage range includes V–
  • Differential input voltage range equal to maximum-rated supply voltage
  • AEC Q-100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C
    • Device HBM ESD classification 2
    • Device CDM ESD classification C5
  • Wide supply range of:
    • 3 V to 36 V (LM2902B-Q1 and LM2902BA-Q1)
    • 3 V to 32 V (LM2902KV and LM2902KAV)
    • 3 V to 26 V (all other products)
  • Input offset voltage maximum at 25°C of:
    • 2 mV (LM2902BA-Q1 and LM2902KAV)
    • 3 mV (LM2902B-Q1)
    • 7 mV (all other products)
  • Internal RF and EMI filter (LM2902B-Q1 and LM2902BA-Q1)
  • Supply-current of 175 µA per channel, typical
  • Unity-gain bandwidth of 1.2 MHz
  • Common-mode input voltage range includes V–
  • Differential input voltage range equal to maximum-rated supply voltage

The LM2902-Q1, LM2902B-Q1, and LM2902BA-Q1 are industry-standard operational amplifiers that have been qualified for automotive use in accordance to the AEC-Q100 specifications. The LM2902B-Q1 and LM2902BA-Q1 are the next-generation versions of the LM2902-Q1, which include four high-voltage (36 V) operational amplifiers (op amps). The LM2902B-Q1 and LM2902BA-Q1 provide outstanding value for cost-sensitive applications, with features including low offset (3 mV and 2 mV maximum, respectively), common-mode input range to ground, and high differential input voltage capability.

The LM2902B-Q1 and LM2902BA-Q1 simplify circuit design with enhanced features such as unity-gain stability, lower offset voltage of 0.3 mV (typical), and lower quiescent current of 240 µA (typical). High ESD (2 kV, HBM) and integrated EMI and RF filters enable the LM2902B-Q1 and LM2902BA-Q1 devices to be used in the most rugged, environmentally challenging applications for the automotive marketplace.

The LM2902-Q1, LM2902B-Q1, and LM2902BA-Q1 are industry-standard operational amplifiers that have been qualified for automotive use in accordance to the AEC-Q100 specifications. The LM2902B-Q1 and LM2902BA-Q1 are the next-generation versions of the LM2902-Q1, which include four high-voltage (36 V) operational amplifiers (op amps). The LM2902B-Q1 and LM2902BA-Q1 provide outstanding value for cost-sensitive applications, with features including low offset (3 mV and 2 mV maximum, respectively), common-mode input range to ground, and high differential input voltage capability.

The LM2902B-Q1 and LM2902BA-Q1 simplify circuit design with enhanced features such as unity-gain stability, lower offset voltage of 0.3 mV (typical), and lower quiescent current of 240 µA (typical). High ESD (2 kV, HBM) and integrated EMI and RF filters enable the LM2902B-Q1 and LM2902BA-Q1 devices to be used in the most rugged, environmentally challenging applications for the automotive marketplace.

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類型 標題 日期
* Data sheet LM2902-Q1, LM2902B-Q1, and LM2902BA-Q1 Industry-Standard Quad Operational Amplifiers for Automotive Applications datasheet (Rev. H) PDF | HTML 2023年 10月 16日
Application note Application Design Guidelines for LM324 and LM358 Devices (Rev. B) PDF | HTML 2023年 7月 19日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Technical article Shining a light on op amps: considerations in LED lighting PDF | HTML 2016年 10月 20日
Application note Low-Level Output Voltage vs. Sinking Current of a Bipolar Output Amplifier 2012年 11月 21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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SOIC (D) 14 檢視選項
TSSOP (PW) 14 檢視選項
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