THS4223D - 230MHz Rail-to-Rail Op Amp | Texas Instruments
MPN： THS4223D ✓ 啟用中THS4223D 概覽
An operational amplifier is a voltage-gain building block that compares an input signal with a feedback network. A differential amplifier uses the voltage difference between two inputs, allowing common-mode noise and interference to be rejected when the system detects or processes a small signal riding on a larger common-mode voltage. In the broader semiconductor hierarchy, the THS4223D belongs to the operational-amplifier, analog-amplifier, signal-conditioning, and integrated-circuit classes.
The principal verified features of the THS4223D include a 230 MHz high-speed rating, rail-to-rail output swing, a 1.35 V to 7.5 V supply-voltage range, and low-distortion operation. These characteristics make the amplifier relevant to applications requiring wider bandwidth and lower output distortion than general-purpose op amps. Rail-to-rail output operation also improves usable output range in low-voltage systems where conventional amplifier outputs lose headroom near the supply rails.
The 14-SOIC package provides a compact surface-mount implementation with a 1.27 mm terminal pitch. A 14-pin package offers a practical footprint for differential analog layouts because signal, power, feedback, and bypass connections can be grouped around the device. The industrial temperature grade supports equipment expected to operate across the stated -40 °C to +85 °C range, although designers should still verify system-level heat rise and worst-case operating conditions.
Typical uses include low-voltage ADC input drivers, communications receivers, measurement front ends, and high-speed feedback networks. In an ADC driver, the amplifier can provide gain, impedance conversion, and differential signal conditioning before conversion. In receiver circuits, differential operation can reduce common-mode pickup when the source is balanced and the PCB provides symmetric routing.
A critical design practice is to preserve the amplifier's high-speed behavior with short feedback traces, symmetric differential routing, adequate input/output bypassing, and a ground reference capable of supporting high-frequency current. Decoupling capacitance, resistor values, and the selected feedback network should follow the manufacturer's guidance because unsupported values cannot be inferred from the available search data.
This product record combines the verified distributor and manufacturer-page information with explicit data gaps, practical layout guidance, sourcing details, and a selection framework. It distinguishes confirmed THS4223D attributes from parameters that still require confirmation from the full manufacturer datasheet, helping engineers avoid treating incomplete distributor snippets as complete design specifications.
直接替換替代品，適用於 THS4223D — 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。
此產品無可直接替換的替代品。
申請替代品THS4223D 最大額定值與電氣特性
| Product Type | Low-distortion high-speed rail-to-rail output operational amplifier |
| Amplifier Architecture | Voltage feedback differential amplifier |
| Circuit Configuration | 2 circuits, differential |
| Supply Voltage Range | 1.35 V to 7.5 V |
| Gain-Bandwidth Product | 230 MHz |
| Output Swing | Rail-to-rail output |
| Verified Output Amplitude | ±4.8 V at RL = 2 kΩ |
| 工作溫度範圍 | -40 °C to +85 °C |
| Package Type | 14-pin SOIC, plastic |
| Package Code | SOP |
| Terminal Count | 14 terminals |
| Terminal Pitch | 1.27 mm |
| Maximum Seated Height | 1.75 mm |
| Package Length | 8.65 mm |
| Package Width | 3.90 mm |
| Temperature Grade | Industrial |
| 安裝類型 | Surface mount |
| Primary Application | Low-voltage analog-to-digital converter signal conditioning |
THS4223D 3.90 mm 腳位配置指南
THS4223D（3.90 mm 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： THS4223D.
請參閱 資料表 以查看完整腳位配置。
典型應用
THS4223D 適用於 6 應用s: Low-Voltage ADC Input Driver, Instrumentation Signal Conditioning, Communications Receiver Front End, Balanced Audio Output Stage, High-Speed Data Acquisition, Industrial Control and Monitoring.
Low-Voltage ADC Input Driver
The THS4223D fits low-voltage ADC front ends because it combines a verified 230 MHz gain-bandwidth product with a 1.35 V to 7.5 V supply range and differential voltage-feedback operation. Place the device close to the converter input to provide gain, differential drive, and impedance conversion while limiting trace loss and parasitic capacitance. Its rail-to-rail output can improve utilization of a restricted analog supply range, although ADC headroom, settling time, and input capacitance must be checked against the complete amplifier datasheet. A common engineering mistake is selecting bandwidth in isolation; the ADC sampling rate, required signal amplitude, filter response, and allowable acquisition time determine whether the complete signal chain meets accuracy requirements.
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Instrumentation Signal Conditioning
The THS4223D can condition low-level differential sensor signals when the source requires higher bandwidth than a conventional precision op amp provides. Its differential voltage-feedback architecture allows gain and filtering to be established with feedback components rather than relying on a single-ended input arrangement. The 230 MHz rating provides bandwidth margin for signals with modest high-frequency content, while rail-to-rail output improves low-voltage headroom. Designers should still verify input common-mode range, bias-current behavior, noise density, offset, and stability, because those parameters were not available in the supplied search snippets.
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Communications Receiver Front End
The THS4223D is applicable to balanced communications receiver paths that require differential amplification and wide signal bandwidth. Driving a matched input with differential signals can reduce sensitivity to common-mode pickup, provided the source impedance, termination, and routing are balanced. The verified 230 MHz gain-bandwidth product makes the device more appropriate for wideband intermediate-frequency or baseband stages than slow general-purpose amplifiers. Practical implementation requires controlled impedance, short RF-style or controlled-impedance paths, and careful grounding. Output-filter and gain-network component tolerances should be recalculated for the actual operating band because the available data does not establish every AC parameter.
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Balanced Audio Output Stage
The THS4223D can serve as a balanced, low-distortion output or line-driver stage in professional audio equipment where differential signaling and extended bandwidth are useful. Its rail-to-rail output operation allows closer use of the available supply span, while the verified 230 MHz bandwidth is substantially above the audio band and supports fast edges and low-latency signal processing. The key design checks are output-current capability, load impedance, THD plus noise at the operating frequency, output swing, and thermal dissipation into the SOIC package. A conventional audio amplifier may be preferable when thermal efficiency and headphone-drive protection dominate, since those specifications are not available for the THS4223D here.
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High-Speed Data Acquisition
The THS4223D can support high-speed data-acquisition systems that need amplification and differential drive close to the sampling node. The 230 MHz gain-bandwidth product gives useful bandwidth margin, and the differential architecture can help reject common-mode noise when source and receiver impedances are well matched. The implementation should minimize the distance between the amplifier, anti-alias network, and ADC, because parasitic capacitance and unequal propagation delay can otherwise create settling errors or differential skew. Designers must verify the ADC's required acquisition time and the complete op-amp settling specifications, neither of which is present in the supplied snippets.
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Industrial Control and Monitoring
The THS4223D can be used in industrial monitoring electronics when a differential sensor or control signal requires higher bandwidth and low-voltage operation. Its -40 °C to +85 °C specified range supports industrial-temperature equipment, while the 1.35 V to 7.5 V operating range fits compact systems powered from low-voltage rails. The amplifier may condition inputs before control-IC comparison, data conversion, or monitoring. Robust industrial design still requires transient protection, input clamping appropriate to the actual common-mode limits, and thermal verification. The available material does not confirm surge robustness, isolation, or automotive qualification, so those protections must be implemented externally when necessary.
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推薦產品摘要
工程參考資料，適用於 THS4223D — 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 |
|---|---|
| Product Type | Low-distortion high-speed differential operational amplifier |
| Brand | Texas Instruments |
| Package | 14-pin SOIC |
| Supply Voltage Range | 1.35 V to 7.5 V |
| Gain-Bandwidth Product | 230 MHz |
| Output Architecture | Rail-to-rail output |
| Verified Output Swing | ±4.8 V at RL = 2 kΩ |
| Operating Temperature | -40 °C to +85 °C |
| Circuit Configuration | 2 circuits, differential |
| Price Reference | $0.7608 starting price as of 2026-10-28 |
主要差異化特點
- High-speed differential signal conditioning (對比LM324D)
- Low-voltage rail-to-rail output capability (對比MC3403D)
- Industrial temperature specification (對比MC3303D)
設計說明
Treat the THS4223D as a high-speed analog component even when processing a low-frequency signal. Place input, feedback, and output components close to the device, keep the differential paths short and symmetric, and avoid routing sensitive nodes beside clocks, switching-regulator nodes, or other fast edges. The 14-SOIC footprint has a 1.27 mm pitch, so adequate assembly clearance and a stable ground reference are important. Use the manufacturer's evaluation-board layout as the baseline whenever it is available.
Place the required supply-bypass capacitors at the THS4223D power pins and provide a low-impedance return to the same ground reference. Because the verified supply range extends down to 1.35 V, capacitor voltage ratings and effective capacitance can vary materially with bias and temperature. Confirm the manufacturer-recommended network and consider additional local bypass only after checking stability and inrush behavior; arbitrary extra capacitance can alter frequency response or cause instability.
Use matched input impedances and symmetrical differential routing so that the two channels experience nearly equal delay and attenuation. A mismatch can convert common-mode noise into differential error and reduce the rejection benefit of the differential architecture. Also keep the feedback loop compact and use resistor and capacitor values supported by the complete manufacturer datasheet. Do not derive stability or settling requirements from the 230 MHz headline specification alone.
Do not treat the 14-pin SOIC outline as proof that another differential amplifier is pin-compatible. Several amplifier families use the same package count for different input, feedback, power, and exposed-function assignments. Before substituting a candidate, compare the complete pin map, supply limits, input common-mode range, differential output architecture, gain stability, output swing, and noise. The supplied cross-reference search did not identify a verified drop-in replacement for THS4223D.
Calculate amplifier dissipation from the actual output current, output swing, supply voltage, and load rather than from a headline bandwidth rating. In a low-voltage rail-to-rail output stage, dissipation and distortion can rise substantially during large-signal transitions. Confirm maximum output current, short-circuit behavior, package thermal resistance, and ambient-temperature limits from the full manufacturer datasheet, then provide copper area appropriate to the SOIC-14 footprint and worst-case load.
合規資訊
The supplied verified snippets do not state compliance declarations for the exact THS4223D ordering code. The industrial -40 °C to +85 °C temperature grade does not by itself establish AEC-Q100 qualification. Confirm current compliance documentation from Texas Instruments for the exact MPN.
