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Texas Instruments THS4500IDGN
- Part No.:
- THS4500IDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4500IDGN.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:140
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Product details
Overview
THS4500IDGN from Texas Instruments is a high-performance fully differential amplifier with 370 MHz small-signal bandwidth, 2800 V/μs slew rate, and –90 dBc third-order intermodulation distortion at 30 MHz. It features power-down capability, output common-mode voltage control (VOCM), and supports ±5 V or single 5 V supply operation. It serves as a precision ADC driver in high-speed data acquisition systems for wireless baseband receivers.
For engineers reviewing the THS4500IDGN datasheet, THS4500IDGN pinout, THS4500IDGN application, or THS4500IDGN equivalent, key selection criteria include differential linearity (OIP3 = 49 dBm), VOCM-controlled output common-mode setting, thermal performance in MSOP-8 PowerPAD™ package, and compatibility with 12–14-bit, 40–80 MSPS ADC interfaces.
Technical Context
The THS4500IDGN implements a fully differential architecture with independent input and output common-mode control paths. Its input stage accepts single-ended or differential signals while shifting the input common-mode range to include the negative rail (–5.7 V at ±5 V supply), enabling direct interfacing with ground-referenced sources.
Output common-mode voltage is actively controlled via the VOCM pin with 180 MHz bandwidth and <±0.1 V offset error, allowing precise alignment to ADC reference midpoints. The power-down function reduces quiescent current to ≤1.2 mA while maintaining high-impedance inputs and outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at G = +1, ±5 V supply - enables wideband signal conditioning up to UHF frequencies |
| Slew rate | 2800 V/μs - supports fast transient response for high-fidelity pulse and RF envelope amplification |
| IMD3 | –90 dBc at 30 MHz, 2 VPP output - ensures minimal spectral regrowth in receiver I/Q chains |
| OIP3 | 49 dBm at 30 MHz - provides robust linearity for high dynamic range analog front-ends |
| VOCM bandwidth | 180 MHz - allows real-time common-mode tracking in closed-loop ADC interface designs |
| Power-down current | ≤1200 μA - enables low-power standby mode without external biasing circuitry |
| Input voltage noise | 7 nV/√Hz - maintains SNR integrity when driving high-resolution ADCs |
Pinout & Package
The THS4500IDGN is housed in an 8-pin MSOP PowerPAD™ package (DGN), featuring an exposed thermal pad on the underside for enhanced heat dissipation. The PowerPAD must be soldered to a PCB copper plane to maintain junction temperature ≤125°C under full load.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; accepts single-ended or balanced signals with rail-to-rail common-mode range |
| VIN+ | Non-inverting input | Differential input node; complements VIN− for fully differential gain configuration |
| VOCM | Output common-mode control | Setpoint input for VOUT+ and VOUT− midpoint; determines DC level of differential output pair |
| VS+ | Positive supply | Accepts +5 V (single) or +5 V (dual); decoupling required per TI layout guidelines |
| VOUT+ | Positive differential output | Active, low-impedance output; drives ADC AIN+ or transformer primary |
| PD | Power-down enable | Logic-controlled shutdown: >2.1 V enables, <0.7 V disables; 1 μs turn-off delay |
| VS− | Negative supply | Accepts 0 V (single) or –5 V (dual); requires dedicated ground plane for PSRR optimization |
| VOUT− | Negative differential output | Complementary output to VOUT+; maintains amplitude and phase balance within –58 dB |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates even-order harmonics and common-mode noise; enables true differential signaling to ADCs |
| Output common-mode voltage control | VOCM pin sets VOUT+ and VOUT− midpoint independently of gain and input signal-critical for mismatched ADC references |
| Power-down capability | Reduces quiescent current from 34 mA to ≤1.2 mA; preserves input/output high-Z state during sleep cycles |
| Rail-included input common-mode range | VIN common-mode extends to VS− (–5.7 V at ±5 V), enabling direct connection to ground-referenced sensors or DACs |
| High OIP3 and low IMD3 | 49 dBm OIP3 and –90 dBc IMD3 at 30 MHz ensure clean signal delivery into 14-bit ADCs up to 40 MHz Nyquist |
Applications
| Wireless Baseband Receiver | High-Speed Data Acquisition |
|---|---|
Use Scenario: Amplifying I/Q baseband signals from quadrature demodulators prior to digitization in LTE/FDD receivers. IC Role / Device Role / Timing Role: Fully differential ADC driver with VOCM alignment to ADC reference voltage (e.g., 2.5 V). Use Value: –90 dBc IMD3 prevents adjacent-channel interference; 370 MHz bandwidth supports multi-carrier WCDMA signals. | Use Scenario: Conditioning analog outputs from high-speed DACs or sensor front-ends before sampling by 12–14-bit, 80 MSPS ADCs. IC Role / Device Role / Timing Role: Precision gain block with matched differential outputs and programmable common-mode offset. Use Value: 7 nV/√Hz input noise preserves ENOB; VOCM control ensures optimal ADC input range utilization. |
| Single-Ended to Differential Conversion | Active Differential Line Driver |
Use Scenario: Converting single-ended clock or analog signals (e.g., from op-amp filters) into balanced differential pairs for noise-immune routing. IC Role / Device Role / Timing Role: High-speed active balun with gain ≥+1 and <0.1 V VOCM offset error. Use Value: 2800 V/μs slew rate supports fast edge transitions; –58 dB output balance error minimizes common-mode radiation. | Use Scenario: Driving long PCB traces or twisted-pair cables to remote ADCs or instrumentation inputs while rejecting EMI. IC Role / Device Role / Timing Role: Low-output-impedance (0.1 Ω) differential transmitter with 120 mA drive capability. Use Value: ±7.4 V differential swing into 1 kΩ ensures >3 VPP headroom for 12-bit systems; PSRR >70 dB suppresses supply noise coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4501IDGN | No power-down pin; identical AC/DC specs and pinout except PD replaced by NC | Used where continuous operation is required and system-level power gating is handled externally | Select THS4501IDGN if power-down functionality is unnecessary and BOM simplification is prioritized |
| THS4521IRGTR | Lower bandwidth (1.8 GHz GBW), higher supply current (38 mA), no VOCM control, 3.3 V only | Targeted at high-frequency IF sampling (>100 MHz) with fixed 1.65 V common-mode, not ADC driver mid-rail alignment | Choose THS4521IRGTR only for >100 MHz IF stages requiring ultra-low noise (2.1 nV/√Hz), not baseband ADC interfacing |
Compared with THS4501IDGN, THS4500IDGN adds system-level power management via PD pin without sacrificing linearity or bandwidth; versus THS4521IRGTR, it trades raw speed for VOCM flexibility and dual-supply support essential for precision baseband signal chains.
Availability
THS4500IDGN is available at Aetrix Electronics and suitable for wireless infrastructure, test equipment, and medical imaging systems requiring stable component supply across extended temperature ranges (–40°C to +85°C) and long production lifecycles.
Supply support for THS4500IDGN 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 signal chain solutions.
The THS4500 series belongs to TI's precision high-speed differential amplifier product line, engineered specifically for demanding ADC driver and baseband signal conditioning applications in communications and instrumentation.
FAQ
What is the maximum recommended junction temperature for continuous operation of the THS4500IDGN?
The THS4500IDGN has a maximum junction temperature limit of +125°C for continuous operation to ensure long-term reliability and stable distortion performance. Exceeding this temperature increases harmonic distortion and may reduce device lifetime. Thermal design must use the MSOP PowerPAD™ pad connected to a thermally robust PCB plane, especially under ±5 V supply and full output swing conditions.
Does the THS4500IDGN support single-supply operation, and what is the minimum supply voltage?
Yes, the THS4500IDGN supports single-supply operation from 4.5 V to 15 V. At 5 V single supply, it delivers 320 MHz small-signal bandwidth and ±3.3 V differential output swing referenced to 2.5 V VOCM. The minimum specified operating voltage is 4.5 V; operation below this risks degraded PSRR, reduced output swing, and increased distortion.
How does the VOCM pin function in the THS4500IDGN, and what happens if left unconnected?
The VOCM pin sets the common-mode voltage of both VOUT+ and VOUT− outputs. When left floating, the THS4500IDGN defaults to ~2.5 V (±0.1 V) under 5 V supply, but this value drifts with temperature and supply variation. For precise ADC interfacing, VOCM must be driven by a low-impedance source (e.g., resistor divider from reference voltage) to maintain <±10 mV error over temperature.
What is the power-down behavior of the THS4500IDGN, and how quickly does it recover?
When the PD pin is pulled below 0.7 V, the THS4500IDGN enters power-down mode, reducing quiescent current to ≤1200 μA and placing inputs and outputs in high-impedance state. Turn-on delay is ≤1000 ns after PD rises above 2.1 V. During recovery, full AC performance (bandwidth, IMD3) is restored within one settling time (≤8.3 ns for 0.01% of 4 VPP step).
Can the THS4500IDGN drive a 50 Ω differential load directly, and what is its output current capability?
The THS4500IDGN is not optimized for direct 50 Ω differential termination. Its specified output drive is 120 mA into 20 Ω (per side), supporting ≥±7.4 V swing into 1 kΩ. Driving 50 Ω differentially would require ≥±2.5 V into 100 Ω total, exceeding safe current limits and degrading linearity. Use external 1:1 RF transformers or resistive matching networks for 50 Ω systems.
THS4500IDGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- 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-HVSSOP
THS4500IDGN FAQ
1.How can I place an order for THS4500IDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4500IDGN 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 THS4500IDGN reliable?
The price and inventory of THS4500IDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4500IDGN is usually 5 days.
3.What payment methods are accepted for THS4500IDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4500IDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4500IDGN?
THS4500IDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4500IDGN 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 THS4500IDGN?
For technical support, including THS4500IDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4500IDGN requirements.
6.How does Aetrix verify that THS4500IDGN is sourced from the original manufacturer or authorized distributors?
All THS4500IDGN 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 THS4500IDGN meets industry standards.
7.What is the process for return or replacement of THS4500IDGN?
All THS4500IDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4500IDGN, 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 THS4500IDGN part is unused and in its original packaging.
Return procedure for THS4500IDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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