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Texas Instruments THS4500ID
- Part No.:
- THS4500ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4500ID.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
THS4500ID from Texas Instruments is a high-speed, fully differential amplifier optimized for ADC driving and RF signal conditioning. 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 high-fidelity analog front-ends in wireless receivers and instrumentation systems.
For engineers reviewing the THS4500ID datasheet, THS4500ID pinout, THS4500ID application, or THS4500ID equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options for precision differential signal chain design.
Technical Context
The THS4500ID employs a fully differential architecture with independent input common-mode range (–5.7 V to +2.6 V with ±5 V supplies) and output common-mode voltage control via VOCM pin. Its internal feedback network supports gain configurations from +1 to +10, with bandwidth inversely scaling per gain setting (e.g., 370 MHz at G = +1, 30 MHz at G = +10).
It integrates power-down functionality activated by a logic-level PD pin, reducing quiescent current to ≤1.2 mA while maintaining high-impedance outputs. The device operates across –40°C to +85°C and supports dual (±5 V) or single (5 V) supplies, with OIP3 of 49 dBm at 30 MHz confirming suitability for wideband receiver linearity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at G = +1, ±5 V - enables baseband-to-IF amplification up to UHF without gain peaking compensation |
| Slew rate | 2800 V/μs - supports fast transient response for 12-bit+ ADC sampling at ≥80 MSPS without slewing-induced distortion |
| IMD3 | –90 dBc at 30 MHz, 2 VPP output - meets LTE/WiMAX receiver linearity specs for adjacent channel interference suppression |
| OIP3 | 49 dBm at 30 MHz - ensures >70 dB spurious-free dynamic range (SFDR) into 50 Ω loads in direct-conversion architectures |
| Input voltage noise | 7 nV/√Hz above 1 MHz - minimizes added noise floor when driving high-resolution ADCs with ≥70 dB SNR |
| Power-down current | ≤1200 μA - allows low-power sleep modes in battery-operated spectrum analyzers or portable test equipment |
| Common-mode input range | –5.7 V to +2.6 V (±5 V supply) - accommodates rail-to-rail single-ended sensor inputs without level-shifting circuitry |
Pinout & Package
The THS4500ID is available in SOIC-8 (D) and MSOP-8 PowerPAD™ (DGN/DGK) packages. This entry corresponds to the industrial-grade SOIC-8 variant (orderable as THS4500ID), with thermal pad optional per TI SLMA002 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; accepts AC-coupled or DC-coupled signals with common-mode range extending to negative rail |
| VIN+ | Non-inverting input | Differential input node; paired with VIN− for balanced signal acquisition or single-ended-to-differential conversion |
| VOCM | Output common-mode voltage control | Setpoint for differential output midpoint; defaults to ~0 V if floating (dual supply) or ~2.5 V (single 5 V supply) |
| VS+ | Positive supply | Accepts +5 V (single) or +5 V (dual); decoupling with 0.1 µF + 10 µF required per TI layout recommendations |
| VOUT+ | Positive differential output | Drives ADC AIN+ or transformer primary; maintains balance error < –58 dB up to 100 kHz |
| PD | Power-down enable | Active-low control: < –4.3 V disables, > –2.9 V enables; turn-off delay ≤800 ns ensures fast channel gating |
| VS− | Negative supply | Accepts 0 V (single) or –5 V (dual); must be connected even in single-supply operation for proper biasing |
| VOUT− | Negative differential output | Complementary output to VOUT+; matched impedance and phase ensure >70 dB CMRR at IF frequencies |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates even-order harmonics and common-mode noise pickup in mixed-signal PCB layouts |
| Output common-mode control (VOCM) | Matches ADC reference mid-point (e.g., 2.5 V for 5 V ADCs), preventing clipping and maximizing SNR |
| Power-down capability | Reduces system standby power by >95% while preserving pin states for rapid wake-up in time-division systems |
| Wide supply range | Operates from 5 V single supply to ±7.5 V dual supply - simplifies integration across legacy and new designs |
| Input common-mode range includes VS− | Enables direct connection of ground-referenced sensors (e.g., piezoelectric transducers) without external bias networks |
Applications
| Wireless Baseband Receiver | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Amplifying I/Q baseband signals prior to digitization in LTE femtocell receivers. IC Role / Device Role / Timing Role: Differential driver between quadrature demodulator and 12-bit, 80 MSPS ADC. Use Value: –90 dBc IMD3 at 30 MHz ensures >75 dB ACLR compliance without digital correction overhead. |
Use Scenario: Conditioning analog outputs from precision DACs in automated test equipment. IC Role / Device Role / Timing Role: High-fidelity buffer and level shifter for 16-bit DAC outputs feeding oscilloscope front-ends. Use Value: 370 MHz bandwidth preserves fast edge fidelity (<0.5 ns rise time) for sub-ns timing measurements. |
| Single-Ended to Differential Conversion | Active Filtering Stage |
|
Use Scenario: Converting output of op-amp-based sensor signal conditioners to differential format for noise immunity. IC Role / Device Role / Timing Role: Gain-of-two differential converter with VOCM referenced to ADC mid-scale. Use Value: Input common-mode range down to –5.7 V eliminates need for external level-shift resistors with rail-to-rail op-amps. |
Use Scenario: Implementing 2nd-order active low-pass filtering before ADC input in medical ultrasound beamformers. IC Role / Device Role / Timing Role: Filter amplifier with programmable cutoff (via external RC) and precise gain matching. Use Value: Output balance error < –58 dB ensures minimal image rejection degradation in phased-array receive paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4501ID | No power-down pin (PD pin replaced with NC); identical AC/DC performance and pinout otherwise | Preferred where continuous operation is required and power cycling is unnecessary | Select THS4501ID when system-level power management is handled externally or not needed |
| THS4521IDR | Lower bandwidth (1.8 GHz GBW vs 300 MHz), higher supply current (30 mA vs 28 mA), no VOCM pin | Better suited for DC-coupled, high-gain (>10×) applications requiring wider bandwidth | Choose THS4521IDR only when VOCM control is unnecessary and >1 GHz small-signal bandwidth is required |
Compared with THS4500ID, THS4501ID removes power-down functionality but retains full signal integrity for always-on systems, while THS4521IDR trades VOCM flexibility and low IMD for higher speed and gain-making it unsuitable as a drop-in replacement in precision ADC driver roles.
Availability
THS4500ID is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed data acquisition, and precision instrumentation requiring stable component supply across extended temperature ranges.
Supply support for THS4500ID 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 over 50 years of innovation in high-performance signal chain components.
The THS4500ID belongs to TI's high-speed differential amplifier product line, engineered specifically for ultra-linear, low-noise signal conditioning in communications and test equipment front-ends.
FAQ
What is the maximum operating temperature range for the THS4500ID?
The THS4500ID is rated for industrial operation from –40°C to +85°C. Its junction temperature must be maintained ≤+125°C for long-term reliability, and thermal design should account for package-specific dissipation ratings-especially in SOIC-8 (D) packages where θJA is 97.5°C/W. Derating curves in the datasheet confirm stable performance across this full range.
Does the THS4500ID require external compensation for unity-gain stability?
No, the THS4500ID is internally compensated for unity-gain stability. Its small-signal frequency response remains flat to 150 MHz (0.1-dB flatness) at G = +1 with RF = RG = 392 Ω and RL = 800 Ω. External compensation is unnecessary unless non-standard gain configurations or reactive loads introduce phase margin degradation.
How does the VOCM pin behave when left unconnected on the THS4500ID?
When VOCM is left floating, the THS4500ID defaults to approximately 0 V under ±5 V supplies or ~2.5 V under 5 V single supply, with tolerance of ±0.10 V at +85°C. For precise control-especially when interfacing with ADC references-TI recommends actively driving VOCM with a low-impedance source (e.g., voltage divider or buffer) to avoid drift-induced offset errors.
Can the THS4500ID drive a 50 Ω differential load directly?
Yes, the THS4500ID delivers ±7.4 V differential swing into 1 kΩ and ≥100 mA output current into 20 Ω loads. While not optimized for 50 Ω termination, it can drive 100 Ω differential (50 Ω per side) with minimal gain error (<0.2 dB) and preserved linearity-verified in TI's application note SLOA054. For true 50 Ω systems, series matching resistors may be added.
What is the typical power-down recovery time for the THS4500ID?
The THS4500ID exhibits ≤1000 ns turn-on delay and ≤800 ns turn-off delay, measured from PD pin transition to output settling within 1% of final value. This enables use in time-division multiplexed systems such as multi-channel spectrum analyzers or TDD-based radio front-ends where rapid channel activation is critical.
THS4500ID 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
THS4500ID FAQ
1.How can I place an order for THS4500ID through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4500ID 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 THS4500ID reliable?
The price and inventory of THS4500ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4500ID is usually 5 days.
3.What payment methods are accepted for THS4500ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4500ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4500ID?
THS4500ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4500ID 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 THS4500ID?
For technical support, including THS4500ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4500ID requirements.
6.How does Aetrix verify that THS4500ID is sourced from the original manufacturer or authorized distributors?
All THS4500ID 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 THS4500ID meets industry standards.
7.What is the process for return or replacement of THS4500ID?
All THS4500ID units undergo pre-shipment inspection (PSI). If there is an issue with THS4500ID, 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 THS4500ID part is unused and in its original packaging.
Return procedure for THS4500ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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