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Texas Instruments THS4501ID
- Part No.:
- THS4501ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4501ID.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,396
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Product details
Overview
THS4501ID from Texas Instruments is a high-performance fully differential amplifier optimized for precision signal conditioning in high-speed data acquisition systems. It delivers 370 MHz small-signal bandwidth, –90 dBc third-order intermodulation distortion at 30 MHz, and 2800 V/μs slew rate under ±5 V supply, enabling clean 14-bit ADC driving up to 40 MHz in wireless receiver chains and instrumentation front-ends.
For engineers reviewing the THS4501ID datasheet, THS4501ID pinout, THS4501ID application, or THS4501ID equivalent, key selection criteria include its fully differential architecture with output common-mode control (VOCM), wide input common-mode range extending to the negative rail, and absence of power-down functionality-distinguishing it from the THS4500 series.
Technical Context
The THS4501ID employs a fully differential voltage-feedback topology with symmetrical input and output stages, supporting both single-ended-to-differential and differential-to-differential conversion. Its VOCM terminal enables precise setting of output common-mode voltage independent of gain configuration, critical for interfacing with modern ADCs requiring fixed reference levels.
Designed for ±5 V, ±7.5 V, or single 5–15 V operation, the device maintains >70 dB CMRR and >70 dB PSRR across frequency, with input bias current ≤5.2 μA and input offset voltage ≤±9 mV over –40°C to +85°C. No internal power-down circuitry exists-this variant lacks the PD pin present on THS4500 devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at G = +1, ±5 V - supports wideband IF sampling without gain peaking or phase margin loss. |
| Slew rate | 2800 V/μs at ±5 V - enables full-scale transient response for 2 VPP signals within 0.4 ns rise time. |
| IMD3 | –90 dBc at fC = 30 MHz, 200 kHz spacing - ensures minimal spectral regrowth in LTE/WiMAX receiver I/Q paths. |
| OIP3 | 49 dBm at 30 MHz, referenced to 50 Ω - provides robust linearity for high dynamic range baseband signal chains. |
| Input voltage noise | 7 nV/√Hz above 1 MHz - preserves SNR when amplifying low-level sensor or RF mixer outputs. |
| Common-mode input range | –5.1 V to +2.0 V at ±5 V supply - accommodates ground-referenced inputs while maintaining rail-to-rail usability. |
| Differential output swing | ±7.4 V into 1 kΩ at ±5 V - drives ADC inputs directly without level-shifting components. |
Pinout & Package
THS4501ID is available in SOIC-8 (D), MSOP-8 with PowerPAD™ (DGN), and thermally enhanced MSOP-8 (DGK) packages. The DGN and DGK variants require thermal pad soldering to PCB ground plane per TI SLMA002/SLMA004 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; accepts signal referenced to VOCM or ground; supports rail-to-rail common-mode range. |
| VIN+ | Non-inverting input | Differential input node; matched impedance and layout critical for balance error <–58 dB. |
| VOCM | Output common-mode control | DC voltage sets average of VOUT+ and VOUT−; open-circuit defaults to ~2.5 V in 5 V mode, ~0 V in ±5 V mode. |
| VS+ | Positive supply | Accepts +5 V, +7.5 V, or +15 V; decoupling with 0.1 µF ceramic + 10 µF bulk capacitor required. |
| VOUT+ | Positive differential output | Drives ADC AIN+ or transformer primary; balanced with VOUT− to minimize EMI and improve PSRR. |
| VS− | Negative supply | Required for dual-supply operation (e.g., –5 V); omitted in single-supply configurations using 5–15 V on VS+ only. |
| VOUT− | Negative differential output | Complementary output to VOUT+; must be routed with equal length/impedance for <1° phase mismatch. |
| NC | No connect | Pin 8 is unconnected in THS4501ID (unlike THS4500's PD pin); must remain floating or grounded per layout rules. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates even-order harmonics and common-mode noise coupling, improving ADC ENOB by ≥1.5 bits vs. single-ended drivers. |
| Output common-mode control (VOCM) | Enables direct interface to 2.5 V-referenced SAR ADCs without external level shifters or resistive dividers. |
| Wide supply range (±5 V to ±7.5 V, 5–15 V) | Supports legacy ±5 V systems and modern low-voltage 5 V/12 V industrial designs without redesign. |
| Input common-mode range includes VS− | Allows ground-referenced sensor outputs (e.g., piezoelectric transducers) to be amplified without AC coupling or biasing networks. |
| High OIP3 (49 dBm) and low IMD3 (–90 dBc) | Meets LTE ACLR requirements for 20 MHz channels and enables multi-carrier WCDMA base station front-ends. |
Applications
| Wireless Communication Receiver | High-Speed Data Acquisition |
|---|---|
Use Scenario: Downconverting RF signals in LTE femtocell receivers before digitization. IC Role / Device Role / Timing Role: Single-ended-to-differential I/Q driver preceding 14-bit, 80 MSps ADC. Use Value: –90 dBc IMD3 prevents adjacent-channel interference; 370 MHz bandwidth captures full 20 MHz LTE channel with guard bands. |
Use Scenario: Conditioning analog outputs from precision sensors (e.g., strain gauges, RTDs) in automated test equipment. IC Role / Device Role / Timing Role: Low-noise, high-linearity gain stage feeding multiplexed ADC inputs. Use Value: 7 nV/√Hz input voltage noise preserves microvolt-level resolution; ±7.4 V swing drives ADC full scale without clipping. |
| Instrumentation Front-End | Digital Oscilloscope Signal Path |
Use Scenario: Amplifying low-amplitude signals from oscilloscope probe preamplifiers. IC Role / Device Role / Timing Role: Differential driver between probe head and main acquisition ASIC. Use Value: 2800 V/μs slew rate supports 100 ps rise-time measurements; <0.1 dB flatness to 150 MHz ensures amplitude fidelity. |
Use Scenario: Driving 50 Ω coaxial traces to ADC in portable digital storage oscilloscopes. IC Role / Device Role / Timing Role: Final gain block with matched differential outputs for minimized skew. Use Value: Output balance error ≤–58 dB reduces timing jitter; VOCM control aligns outputs to ADC's internal reference voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4500ID | Includes power-down pin (PD); identical AC/DC specs but adds 800–1200 μA quiescent current in shutdown mode. | Required where system-level power gating is mandated (e.g., battery-powered handheld analyzers). | Select THS4500ID only if active power management is needed; THS4501ID saves board space by omitting unused PD pin. |
| THS4521IDGKT | Lower power (12.5 mA vs. 34 mA), lower bandwidth (1.8 GHz vs. 370 MHz), higher noise (2.1 nV/√Hz), no VOCM pin. | Targeted at DC-coupled, low-power, high-precision applications-not RF or wideband ADC driving. | THS4521IDGKT trades bandwidth and VOCM flexibility for ultra-low noise and power; not a drop-in replacement. |
Compared with THS4500ID, THS4501ID removes power-down complexity for always-on systems, while THS4521IDGKT shifts focus to sub-100 MHz precision sensing-neither matches THS4501ID's combination of wide bandwidth, VOCM control, and proven 30 MHz IMD3 performance.
Availability
THS4501ID is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed data acquisition, instrumentation front-end, and digital oscilloscope signal path applications requiring stable component supply and long-term manufacturability.
Supply support for THS4501ID includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in high-speed amplifier design and manufacturing.
The THS4501ID belongs to TI's THS45xx fully differential amplifier family, engineered specifically for high-fidelity signal conditioning in communications, test equipment, and medical imaging systems demanding exceptional linearity and bandwidth.
FAQ
What is the maximum operating temperature range for THS4501ID?
The THS4501ID is rated for operation from –40°C to +85°C (I-suffix grade), making it suitable for industrial and outdoor wireless infrastructure deployments where ambient temperatures exceed commercial-grade limits. Junction temperature must be maintained ≤+125°C for long-term reliability, requiring appropriate PCB thermal design-especially for DGN/DGK PowerPAD packages.
Does THS4501ID support single-supply operation?
Yes, THS4501ID supports single-supply operation from 4.5 V to 15 V on VS+, with VS− tied to ground. At 5 V supply, it delivers 320 MHz bandwidth, ±3.3 V differential output swing (referenced to 2.5 V), and maintains –60 dBc third-harmonic distortion at 30 MHz-enabling compact, low-voltage data acquisition modules without dual-rail supplies.
How does the VOCM pin function in THS4501ID?
The VOCM pin in THS4501ID sets the average voltage of VOUT+ and VOUT−. When driven externally (e.g., to 2.5 V), it forces the differential output to center around that level-critical for matching ADC input common-mode requirements. If left floating, VOCM defaults to ~2.5 V in 5 V mode and ~0 V in ±5 V mode, verified across temperature and process corners per TI SLOS350F datasheet Section 7.5.
Is THS4501ID pin-compatible with THS4500ID?
Yes, THS4501ID and THS4500ID share identical pinouts across all package options (D, DGN, DGK). Pin 8 is NC in THS4501ID and PD in THS4500ID-but both devices route VIN−, VIN+, VOCM, VS+, VOUT+, VS−, and VOUT− to the same positions. Layout reuse is possible; however, THS4501ID boards must leave pin 8 unconnected or grounded per TI recommendations.
What is the typical quiescent current of THS4501ID at ±5 V?
At ±5 V supply and +25°C, THS4501ID draws 23 mA typical quiescent current, rising to 34 mA maximum over temperature (–40°C to +85°C). This current remains stable across gain configurations and load conditions, simplifying power budgeting for multi-channel systems-unlike rail-to-rail amplifiers whose IQ varies significantly with output swing.
THS4501ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 2800V/µs
- Gain Bandwidth Product:
- 300 MHz
- -3db Bandwidth:
- 370 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 23mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4501ID FAQ
1.How can I place an order for THS4501ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4501ID on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS4501ID reliable?
The price and inventory of THS4501ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4501ID is usually 5 days.
3.What payment methods are accepted for THS4501ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4501ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4501ID?
THS4501ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4501ID order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS4501ID?
For technical support, including THS4501ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4501ID requirements.
6.How does Aetrix verify that THS4501ID is sourced from the original manufacturer or authorized distributors?
All THS4501ID products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS4501ID meets industry standards.
7.What is the process for return or replacement of THS4501ID?
All THS4501ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4501ID, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS4501ID part is unused and in its original packaging.
Return procedure for THS4501ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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