TL072CDR - Dual Low-Noise JFET Op Amp | Texas Instruments
部品番号: TL072CDR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.133 | $0.13 |
| 10 | $0.125 | $1.25 |
| 100 | $0.112 | $11.20 |
| 500 | $0.101 | $50.50 |
| 1,000 | $0.093 | $93.00 |
TL072CDR 概要
A JFET-input operational amplifier is an analog amplifier whose input stage uses junction field-effect transistors. Compared with a bipolar-input amplifier, the JFET stage generally provides lower input bias current and higher input resistance, while retaining useful low-noise performance. In system terms, the TL072 belongs to the operational-amplifier hierarchy within analog and mixed-signal semiconductors. Two amplifiers in one package reduce board area for stereo audio, balanced signal paths, active filters, and instrumentation signal chains.
The verified product results specifically highlight low-noise JFET inputs, low total harmonic distortion, high input impedance, and high slew rate. These characteristics are useful in audio preamplifiers, microphone stages, sensor amplifiers, and active filters where the amplifier must preserve small signals without excessive input loading. The 3 MHz bandwidth supports applications up to moderate signal frequencies, while the 13 V/µs slew rate helps preserve large-signal waveform shape. Exact noise, offset, common-mode rejection, supply-current, and output-swing values were not supplied in the verified excerpts and are therefore marked for data completion rather than inferred.
The TL072CDR is packaged in SOIC-8 and is ordered in a tape-and-reel commercial suffix arrangement identified by the exact MPN TL072CDR. Its two-amplifier architecture is useful when a design requires matched-channel placement or duplicate gain stages. Because it is not a rail-to-rail precision amplifier, the supply voltage and input/output signal limits must be checked against the manufacturer datasheet before use in modern low-voltage systems.
Typical applications include stereo audio preamplification, microphone and instrument signal conditioning, active low-pass or band-pass filters, analog sensor interfaces, and general dual-amplifier utility circuits. Compared with a higher-performance precision audio amplifier, the TL072 offers a conventional general-purpose solution with JFET inputs and a familiar SOIC footprint. Its low-noise and high-slew-rate characteristics make it appropriate for cost-sensitive audio designs where the circuit does not require rail-to-rail operation or very low offset voltage.
Designers should use the manufacturer datasheet for the complete electrical limits and pin configuration. Decoupling capacitors should be placed close to the supply pins, and the unused amplifier channel must be configured according to the datasheet rather than left floating. This page combines verified distributor specifications, source-linked product information, and practical design context for engineers evaluating the TL072CDR.
ドロップイン代替品: TL072CDR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TL072CDR （同一形状・フットプリント） — 相違点: Amplifier Type, Slew Rate, Mounting Type, Package, Gain Bandwidth Product.
クイック比較ツール — 並列比較する代替部品を選択:
TL072CP
✅ ドロップイン✓ 在庫あり
$0.31 / 個
データシートを見る →TL082CP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TL072IDR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TL072IDRE4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TL071CP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LF347
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TL072CDR 最大定格＆電気的特性
| Amplifier Type | Dual operational amplifier |
| Input Stage | JFET-input |
| Number of Amplifiers | 2 |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 13 V/µs |
| Listed Supply Voltage Range | 7 V to 36 V |
| パッケージ | 8-pin SOIC |
| Frequency Compensation | Internal |
| Output Short-Circuit Protection | Yes |
| Input Impedance | High; exact value not supplied in verified data |
| Input Bias Current | Low; exact value not supplied in verified data |
| Low Total Harmonic Distortion | Yes; exact value not supplied in verified data |
| 実装タイプ | Surface mount |
TL072CDR 8-pin soic ピン配置ガイド
TL072CDR (8-pin soic パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: TL072CDR.
詳細は データシート をご参照ください。
主な用途
TL072CDR の用途: 6 件s: Stereo Audio Preamplifier, Microphone and Instrument Preamp, Active Audio Filters, Sensor Signal Conditioning, Audio Control and Mixing Circuits, General Analog Instrumentation.
Stereo Audio Preamplifier
The TL072CDR fits stereo audio preamplifier front ends because it combines two JFET-input amplifiers, low total harmonic distortion, and a verified 13 V/µs slew rate in one 8-pin SOIC. The dual channel arrangement allows left- and right-signal paths to use matched package placement and identical topology. Its low-noise JFET input stage is useful when the source impedance is moderate or high and input bias current would affect the signal path. The 3 MHz gain-bandwidth product is suitable for conventional audio bandwidth circuits rather than ultrasonic applications. Designers should still verify output swing, noise density, offset, and load stability in the TI datasheet.
おすすめ
Microphone and Instrument Preamp
For microphone or musical-instrument preamplification, the TL072CDR offers a practical combination of high input impedance and low input-bias-current behavior from its JFET input stage. That characteristic helps preserve weak source signals without demanding very low source resistance. The verified 13 V/µs slew rate also supports cleaner reproduction of moderate-level transients compared with a slower general-purpose stage. The amplifier should be configured with the gain, feedback network, biasing, and supply bypassing recommended by the manufacturer. Exact input-noise, common-mode range, and maximum output swing values require confirmation from the official datasheet.
おすすめ
Active Audio Filters
The TL072CDR is well suited to second-order active low-pass, high-pass, and band-pass stages used in audio crossovers and tone-shaping circuits. Its dual-amplifier package allows a matched pair of filter channels or a cascaded section within one SOIC-8 device, while internal frequency compensation simplifies the basic feedback topology. The verified 3 MHz bandwidth provides useful margin for audio-frequency filter designs, and the 13 V/µs slew rate helps maintain low distortion when signals are larger than the filter’s minimum passband voltage. Component tolerances, Q, noise, and stability must be verified against the circuit equations and TI application guidance.
おすすめ
Sensor Signal Conditioning
The TL072CDR can condition outputs from high-impedance sensors where low input bias current and high input resistance are useful. Its JFET input stage is better matched to that use case than a bipolar-input stage with substantially higher bias current. The dual package lets one channel amplify or buffer a sensor signal while the other channel provides a reference, filter, or auxiliary gain stage. The verified specifications support a 3 MHz bandwidth and 13 V/µs slew rate, but sensor interfaces must verify common-mode range, input capacitance, offset drift, noise, and supply compatibility. Use local decoupling and guard routing to reduce leakage and interference.
おすすめ
Audio Control and Mixing Circuits
The two amplifiers in the TL072CDR can implement paired voltage-gain stages, buffers, or simple summing and mixing blocks in audio equipment. JFET inputs help preserve the signal when the source has appreciable impedance, and the verified low-distortion feature is useful in analog control paths. The 3 MHz bandwidth is more than adequate for conventional audio frequencies, while the 13 V/µs slew rate helps reduce slew-related distortion. Because the device is not specified as rail-to-rail in the supplied data, the signal headroom must be checked against the selected supply rails. Feedback resistors and compensation values should follow the manufacturer’s recommended configurations.
おすすめ
General Analog Instrumentation
The TL072CDR is a versatile choice for instrumentation prototypes, laboratory signal conditioning, and low-frequency analog measurement chains. Its dual JFET-input architecture supports two related gain or buffering functions while reducing package count. The verified internal frequency compensation and output short-circuit protection make it convenient for basic amplifier experiments, while the 3 MHz bandwidth and 13 V/µs slew rate provide useful dynamic range for many low-frequency measurements. The part should not be assumed to meet precision, rail-to-rail, or high-voltage requirements beyond the verified 7 V to 36 V listing. Verify offset, drift, noise, output swing, and supply-current limits before instrumentation deployment.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TL072CDR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TL072CP | TL082CP | TL072IDR | TL072IDRE4 |
|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Configuration | Dual | Dual | Dual | Dual | Dual |
| Input Stage | JFET-input | JFET-input | JFET-input | JFET-input | JFET-input |
主な差別化要因
- Lower-noise positioning within the verified TL07x comparison （vs TL082CP)
- Dual-amplifier integration （vs TL071CP)
- Verified high slew rate for general audio bandwidth （vs TL072IDRE4)
- Simplified same-family replacement path （vs TL072CP)
設計ノート
Use the verified 7 V to 36 V listed supply range as the initial design boundary, but do not infer that every signal can swing rail to rail. Check the official datasheet for input common-mode limits, output swing, supply-current behavior, and power dissipation. Place the supply bypass capacitor close to the relevant SOIC power pin and return the capacitor ground directly to the device ground plane to reduce supply ripple at the amplifier pins.
Do not treat every TL07x-family pin-compatible option as electrically identical. The verified cross-reference discussion specifically describes TL082 as noisier than TL072. Confirm noise, offset voltage, bias current, common-mode range, bandwidth, slew rate, output drive, and supply current before replacing TL072CDR. Also verify that the alternate MPN’s suffix corresponds to the required package and ordering format rather than assuming that a family name implies identical production ratings.
Keep feedback resistors and compensation-related components close to the corresponding amplifier pins, and route input and output traces away from high-current switching paths. The JFET input stage is useful for high-impedance sources, but PCB leakage, contaminated board surfaces, and nearby digital traces can still degrade bias behavior. Use guarding and a clean ground reference when the input source is especially high impedance.
The verified 3 MHz gain-bandwidth product and 13 V/µs slew rate make the TL072CDR appropriate for many low-frequency audio and instrumentation signals, but they do not make it an unlimited-bandwidth amplifier. Check the closed-loop gain, feedback-loop stability, load capacitance, output routing, and desired full-power bandwidth. At higher frequencies or very low gains, use the manufacturer’s stability guidance and PCB recommendations rather than extrapolating from the headline bandwidth.
コンプライアンス情報
The supplied verified excerpts do not explicitly establish TL072CDR RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status. Compliance fields are therefore recorded as unknown or not applicable only where the verified product context does not indicate automotive qualification.