THS4012ID - 290 MHz Dual High-Speed Amplifier | Texas Instruments
MPN： THS4012ID ✓ 啟用中THS4012ID 概覽
A voltage-feedback operational amplifier is an amplifier that uses feedback around a high-gain differential input stage to control closed-loop gain and bandwidth. Within the signal-chain hierarchy, the THS4012ID belongs to the operational-amplifier family, which supports analog signal conditioning, current-to-voltage conversion, buffering, gain adjustment, and active filtering. Its high closed-loop bandwidth makes it particularly useful when signals must be amplified or routed without substantial attenuation at high frequencies.
Principal performance features include 290 MHz bandwidth, 310 V/us slew rate, and 37 ns settling to 0.1%. The low-distortion architecture is specified for low total harmonic distortion, while the 7.5 nV/sqrt(Hz) input-voltage-noise figure supports sensitive high-speed signal paths. Each channel can source or sink up to 110 mA, providing useful drive capability for downstream stages, termination networks, and active filter elements.
The THS4012 uses a voltage-feedback topology intended for closed-loop operation with resistive feedback components. Its 290 MHz bandwidth and 310 V/us slew rate support video, communications, test-and-measurement, and instrumentation applications. The dual configuration saves board area when two amplified channels are required, while the 7.8 mA-per-channel supply current keeps power demand manageable compared with many high-speed amplifiers.
Typical uses include high-speed video amplification, analog signal conditioning, active filtering, pulse shaping, communications interfaces, and precision test equipment. The reported 70 MHz video bandwidth makes the device relevant to video-processing chains, while its fast settling behavior is useful when waveforms must stabilize rapidly after a transition.
PCB implementation should minimize feedback-loop length, preserve symmetric routing around the amplifier, and provide local supply bypassing. Short ground returns and careful control of parasitic capacitance are particularly important at 290 MHz. Component tolerances, board leakage, and probe or fixture loading should also be checked against the required closed-loop gain and bandwidth.
This product page combines manufacturer specifications, package details, application guidance, and drop-in replacement analysis with practical PCB and signal-integrity considerations. It is intended to help engineers select the THS4012ID, evaluate equivalent amplifiers, and plan a high-speed amplifier layout without relying on a single raw specification list.
直接替換替代品，適用於 THS4012ID — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： THS4012ID （相同外形與佔位） — 差異在於 Amplifier Type, Output Current Drive, Package, Slew Rate, Total Harmonic Distortion.
THS4012IDG4
✅ 直接替換📋 參考替代品（不在目錄中）
THS4012CD
✅ 直接替換聯絡詢價
查看資料表 →THS4012CDG4
✅ 直接替換📋 參考替代品（不在目錄中）
THS4012ID 最大額定值與電氣特性
| Amplifier Type | Voltage-feedback amplifier |
| Number of Channels | 2 channels |
| Gain-Bandwidth Product | 290 MHz |
| Slew Rate | 310 V/us |
| 0.1% Settling Time | 37 ns |
| Output Current Drive | 110 mA |
| 供應電流 | 7.8 mA per channel |
| Input Voltage Noise Density | 7.5 nV/sqrt(Hz) |
| Video Bandwidth | 70 MHz |
| Total Harmonic Distortion | -80 dBc at 1 MHz |
| 工作溫度範圍 | -40 C to +85 C |
| 封裝 | 8-pin SOIC (D) |
| 安裝類型 | Surface mount |
THS4012ID 8-pin soic (d) 腳位配置指南
THS4012ID（8-pin soic (d) 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： THS4012ID.
請參閱 資料表 以查看完整腳位配置。
典型應用
THS4012ID 適用於 6 應用s: High-Speed Video Signal Conditioning, Communications Front-End Conditioning, Precision Active Filtering, Pulse Shaping and Data Acquisition, Test and Measurement Instrumentation, Industrial Sensor Signal Amplification.
High-Speed Video Signal Conditioning
The THS4012ID is well suited to video amplification stages requiring fast edge preservation. Its 290 MHz gain-bandwidth product and 310 V/us slew rate provide ample dynamic range for signals within the amplifier's specified operating limits, while the dual configuration can process two related channels in one 8-pin SOIC. The reported 70 MHz video bandwidth directly addresses video-band applications. Designers should still verify output swing, supply range, and channel-to-channel requirements for the specific video standard, and should use short PCB traces to minimize distortion and ringing.
推薦
Communications Front-End Conditioning
The THS4012ID can amplify and condition moderate-bandwidth communications signals when its 290 MHz bandwidth and 310 V/us slew rate meet the channel requirements. Two channels in one package reduce component count in balanced or multi-path receiver circuitry, while 7.5 nV/sqrt(Hz) input-voltage noise supports low-noise amplification. The key trade-off is higher bandwidth than many precision or low-power amplifiers require. Confirm common-mode range, output swing, gain-bandwidth allocation, and termination details before using the device close to a communications front end.
推薦
Precision Active Filtering
The THS4012ID is appropriate for active-filter prototypes and high-speed instrumentation filters whose useful frequency range is compatible with its 290 MHz gain-bandwidth product. Its 37 ns 0.1% settling time allows cascaded stages to respond rapidly, and 110 mA output-drive capability helps support typical passive filter networks. Component tolerances and parasitic loading can limit practical filter accuracy, so simulations should include the real feedback-resistor and capacitor footprints. Keep the loop compact and bypass each supply rail locally to reduce unintended frequency response.
推薦
Pulse Shaping and Data Acquisition
The THS4012ID can serve as a wideband pulse amplifier or data-acquisition input stage when rapid transitions must be retained. Its 310 V/us slew rate limits large-signal rise-time distortion, and the 37 ns 0.1% settling specification supports measurement systems operating at high speed. The dual channel arrangement can amplify two complementary or sequential signals, but channel-to-channel matching and total uncorrelated error may matter in precision acquisition systems. Verify input capacitance, source impedance, settling tolerance, and acquisition timing before selecting the amplifier.
推薦
Test and Measurement Instrumentation
The THS4012ID fits high-speed test-instrument signal paths that require low distortion and rapid settling. The 290 MHz bandwidth supports moderate-frequency measurement channels, while the dual package can reduce board area in instruments with two amplified outputs. Its 110 mA output-drive capability allows it to drive suitable test fixtures and termination networks without an additional buffer. Before loading the output heavily, confirm the operating supply, output swing, capacitive-load stability, and thermal conditions in the manufacturer datasheet.
推薦
Industrial Sensor Signal Amplification
The THS4012ID can amplify outputs from fast industrial sensors when the sensor bandwidth and transient response justify a 290 MHz amplifier. The 7.5 nV/sqrt(Hz) input-noise specification is useful for low-level signals, while the dual package supports two sensor or reference channels in a compact 8-pin SOIC footprint. Industrial systems must still account for supply variation, common-mode range, grounding, and EMI pickup. Place the device near the sensor interface, use a continuous ground reference, and avoid long high-impedance input routes that can increase noise pickup.
推薦
推薦產品摘要
工程參考資料，適用於 THS4012ID — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | THS4012IDG4 | THS4012CD | THS4012CDG4 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-pin SOIC (D) | 8-pin SOIC (D) | 8-pin SOIC (D) | 8-pin SOIC (D) |
| Amplifier Configuration | Dual voltage-feedback amplifier | Dual voltage-feedback amplifier | Dual voltage-feedback amplifier | Dual voltage-feedback amplifier |
| Gain-Bandwidth Product | 290 MHz | 290 MHz | 290 MHz | 290 MHz |
| Slew Rate | 310 V/us | 310 V/us | 310 V/us | 310 V/us |
| 0.1% Settling Time | 37 ns | 37 ns | 37 ns | 37 ns |
| Output Current Drive | 110 mA | 110 mA | 110 mA | 110 mA |
| Supply Current | 7.8 mA per channel | 7.8 mA per channel | 7.8 mA per channel | 7.8 mA per channel |
主要差異化特點
- Combines two high-speed amplifier channels in one 8-pin SOIC (對比THS4011)
- Provides full THS4012 core AC performance across the listed family options (對比THS4012CDG4)
- Matches the standard THS4012ID ordering configuration without a family change (對比THS4012CD)
設計說明
Place each feedback component close to its associated amplifier input and output pins, and keep the feedback loop physically small. At 290 MHz gain-bandwidth product, even a short return path can add parasitic inductance and capacitance that alter closed-loop gain, reduce stability margin, or increase ringing. Connect the SOIC ground pins directly to a continuous ground plane and avoid routing high-speed outputs beneath unrelated analog or digital traces.
Place the supply bypass capacitors directly beside the corresponding supply and ground pins, using short and wide traces to reduce inductance. Validate stability across input common-mode voltage, output load, and supply combinations because capacitive loading can affect a high-speed voltage-feedback amplifier. Check the output swing and current limits before driving external test equipment, cable capacitance, or termination networks.
Account for probe capacitance, fixture loading, and source impedance when evaluating measured bandwidth or settling time. A conventional oscilloscope probe can materially alter a 290 MHz amplifier response. Use a suitably high-impedance, low-capacitance measurement setup, and compare calculated versus measured results before treating a load-dependent transient as a device defect.
Do not substitute a different THS4012 suffix solely because the package appears identical. Check the manufacturer ordering table for electrical grade, temperature range, qualification, and shipping attributes. In particular, distinguish THS4012ID from its same-package ordering variants and verify that the selected amplifier retains the required supply range, accuracy, and lifecycle commitments.
合規資訊
No explicit compliance declarations were present in the accessible product information. The G4 suffix appears in the available cross-reference listing, but its exact environmental and qualification meaning must be confirmed through the Texas Instruments ordering information.
