THS4141ID - 160MHz Fully Differential Amplifier | Texas Instruments
MPN: THS4141ID ✓ AktifTHS4141ID Ringkasan
A fully differential amplifier is an analog amplifier whose signal path operates from differential input to differential output. Its balanced outputs reduce even-order distortion and reject common-mode interference, making this device class useful in high-speed instrumentation, ADC interfaces, communications equipment, and differential signal-chain designs. The THS4141ID belongs to the amplifier IC hierarchy and provides a compact implementation of balanced analog signal conditioning.
The principal performance characteristics include a 160 MHz -3 dB bandwidth at ±15 V, a 450 V/us slew rate, and -79 dB third-harmonic distortion at 1 MHz. Input-referred noise is specified at 6.5 nV/Hz, while the listed input offset voltage is 7 mV. Its true fully differential architecture maintains balanced outputs and rejects common-mode noise, supporting signal paths where low distortion and high bandwidth are more important than minimum quiescent current.
The THS4141 family uses a complementary bipolar process and a balanced signal path from input to output. This architecture supports single-ended-to-differential conversion, differential ADC driving, and differential transmitter output stages. Its 1 dB gain behavior, 160 MHz bandwidth, and 450 V/us slew rate allow it to process fast transitions while maintaining low harmonic distortion.
Typical uses include high-speed ADC input drivers, communications transmitters, differential signal generators, test and measurement instruments, and industrial control systems. The balanced differential output can also improve immunity to common-mode noise when driving downstream converters, filters, or instrumentation amplifiers.
Design the circuit with short, symmetrical routing between the amplifier, source, and load. Keep the differential traces on a continuous reference plane, match their geometry where practical, and place decoupling capacitors close to the supply pins. Account for gain error, input offset voltage, output common-mode voltage, and supply-headroom requirements before finalizing the surrounding resistor and capacitor networks.
This product page combines the manufacturer specifications with application guidance, package information, and design-oriented comparisons. It also identifies the limits of directly replacing this amplifier with another part: a genuine drop-in candidate must retain the same SOIC-8 footprint, pin assignment, supply behavior, gain structure, bandwidth, and differential-output architecture.
Pilihan pengganti yang segera untuk THS4141ID — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera THS4141ID (sama faktor bentuk dan kaki) — berbeza dalam Amplifier Type, Package, Third-Harmonic Distortion, -3 dB Bandwidth, Common-Mode Noise Rejection.
THS4141IDG4
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
THS4141ID Penilaian maksimum & Ciri-ciri Elektrik
| Amplifier Type | Fully differential input/differential output amplifier |
| Number of Circuits | 1 circuit |
| -3 dB Bandwidth | 160 MHz at ±15 V |
| Slew Rate | 450 V/us |
| Third-Harmonic Distortion | -79 dB at 1 MHz |
| Input-Referred Noise | 6.5 nV/Hz |
| Input Offset Voltage | 7 mV |
| Gain Tolerance | 1 dB |
| Common-Mode Noise Rejection | Balanced outputs reject common-mode noise |
| Gambaran Suhu Operasi | -40 °C to +85 °C |
| Supply Condition for Bandwidth | ±15 V |
| Kemasan | 8-pin SOIC |
| Jenis Pemasangan | Surface mount |
| Process Technology | Complementary bipolar BiComI process |
| Signal-Path Architecture | True differential input-to-differential output |
Panduan Konfigurasi Pin THS4141ID 8-pin soic
Konfigurasi pin untuk THS4141ID (8-pin soic pakai). Komponen analog ini mempunyai pin masukan, keluaran, dan kuasa. Rujuk dokumen pengeluar untuk konfigurasi pengecualian, pemulihan, dan pin aktifkan. Ideal untuk pengawasan isyarat dan litar pengukur.
Tiada data garisan pin yang diperoleh untuk THS4141ID.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
THS4141ID patut untuk 6 aplikasis: High-Speed Differential ADC Driver, Single-Ended-to-Differential Conversion, Differential Communications Transmitter, Precision Test and Measurement Front End, Industrial Differential Signal Conditioning, Balanced Output Signal Generator.
High-Speed Differential ADC Driver
The THS4141ID fits a high-speed ADC input stage because it combines a 160 MHz -3 dB bandwidth with a true differential input and differential output architecture. A balanced output can reduce common-mode pickup along the PCB route to the converter and improve signal integrity when the ADC samples at high frequencies. The circuit should use the manufacturer gain and common-mode resistor arrangement, and the amplifier must be checked against the ADC input range, acquisition time, and sampling rate. Its 450 V/us slew rate supports rapid signal transitions, while the 6.5 nV/Hz input-referred noise helps preserve the resolution of low-amplitude signals.
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Single-Ended-to-Differential Conversion
The THS4141ID can convert a single-ended source into a balanced differential output for downstream circuitry that expects complementary signals. Texas Instruments identifies single-ended-to-differential conversion as a principal use for the device, and the fully differential signal path provides a compact implementation without separate output inverter stages. Set the differential gain and output common-mode voltage with the external resistor network shown in the manufacturer datasheet. Account for the 7 mV input offset voltage and 1 dB gain tolerance when determining whether the system requires calibration or tighter component tolerances.
Disebarkan
Differential Communications Transmitter
The THS4141ID is suitable for balanced transmitter output stages where high bandwidth, rapid slew rate, and low third-harmonic distortion are important. Its 450 V/us slew rate and 160 MHz -3 dB bandwidth support wideband differential signals, while balanced outputs reduce common-mode effects in the transmission path. The -79 dB third-harmonic distortion rating at 1 MHz provides a useful reference for waveform quality. Confirm output swing, load impedance, and common-mode voltage against the communications standard, and preserve symmetric routing from the amplifier to the connector or transceiver.
Disebarkan
Precision Test and Measurement Front End
The THS4141ID can condition fast, low-level differential signals in instrumentation front ends where common-mode rejection and balanced drive are valuable. Its input-referred noise of 6.5 nV/Hz supports low-noise measurement, and the 160 MHz bandwidth covers demanding signal-processing paths. The differential architecture helps reject interference picked up between the source and the instrument input. Design the input network to control gain, account for the 7 mV offset voltage, and verify input and output common-mode limits with the test excitation and termination actually used at the instrument port.
Disebarkan
Industrial Differential Signal Conditioning
The THS4141ID is useful in industrial systems that transmit low-level differential signals through cables or noisy interconnects. Balanced outputs improve rejection of common-mode noise, while the 450 V/us slew rate and 160 MHz bandwidth accommodate fast sensor and control signals. The amplifier can drive a downstream converter, filter, or diagnostic input without requiring separate differential drivers. Validate the industrial input range, grounding strategy, and surge-protection components before placing the amplifier behind a cable interface, and use balanced source and return paths to preserve the noise advantage.
Disebarkan
Balanced Output Signal Generator
The THS4141ID can form the output stage of a high-speed differential signal generator when the source is single-ended and the load requires complementary waveforms. The 160 MHz bandwidth and 450 V/us slew rate allow the amplifier to reproduce fast edges, while the differential output reduces common-mode voltage at the driven load. Establish differential gain and output common-mode voltage with the resistor network from the manufacturer datasheet, and place the load close enough to avoid excess loss and capacitance. Evaluate amplitude, frequency, and phase performance together when generating square or arbitrary waveforms.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk THS4141ID — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | THS4141IDG4 |
|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC |
| Brand | Texas Instruments | Texas Instruments |
| Amplifier Architecture | Fully differential input/differential output | Fully differential input/differential output |
| -3 dB Bandwidth | 160 MHz at ±15 V | 160 MHz at ±15 V |
| Slew Rate | 450 V/us | 450 V/us |
| Input-Referred Noise | 6.5 nV/Hz | 6.5 nV/Hz |
| Third-Harmonic Distortion | -79 dB at 1 MHz | -79 dB at 1 MHz |
Penyeberangsung Jelas
- Combines fully differential I/O with a 160 MHz bandwidth (vsTHS4141IDG4)
- High slew rate supports large-signal differential transitions (vsTHS4141IDG4)
- Low-noise balanced signal path (vsTHS4141IDG4)
Catatan Desain
Treat the differential signal path as a controlled transmission-line structure rather than two independent wires. Route the input and output pairs with matched geometry, avoid stubs, and maintain a continuous ground reference beneath the pairs. Place the THS4141ID close to the signal source and load so that package and board parasitics do not consume the margin associated with the 160 MHz bandwidth.
Use the supply configuration and bypass strategy specified by Texas Instruments, and place the decoupling capacitors immediately adjacent to the power pins. The ±15 V condition cited for the 160 MHz bandwidth identifies the high-speed operating condition but does not define every usable supply combination. Confirm the exact supply range, quiescent-current behavior, and output swing in the manufacturer datasheet before finalizing the power tree and thermal design.
Do not assume that every THS414x-family amplifier has the same control and shutdown pin arrangement. Verify the THS4141ID pin-description table and use the manufacturer typical circuit for the gain-setting resistors, output common-mode voltage, and feedback topology. Incorrect resistor values or an unsuitable output common-mode level can produce offset, distortion, or clipping even when the signal frequency is well below the device bandwidth.
Evaluate the complete amplifier-and-network response rather than relying only on the -3 dB bandwidth. Include the gain-setting resistor impedance, source and load impedances, trace capacitance, and downstream converter input in the analysis. The 450 V/us slew rate supports fast transitions, but excessive source impedance or oversized external resistance can reduce bandwidth and disturb the intended differential gain and common-mode balance.
Maklumat Kesediaan
The operating temperature range is -40 °C to +85 °C. Compliance declarations for the exact THS4141ID ordering option are not stated in the manufacturer-family information and require confirmation from Texas Instruments.