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Texas Instruments THS4500IDGK
- Part No.:
- THS4500IDGK
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS4500IDGK.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,413
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Product details
Overview
THS4500IDGK from Texas Instruments is a wideband, low-distortion fully differential amplifier with power-down capability, designed for high-fidelity signal conditioning in ADC driver and RF receiver chain applications. 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 14-bit operation through 40 MHz in precision data acquisition systems.
For engineers reviewing the THS4500IDGK datasheet, THS4500IDGK pinout, THS4500IDGK application, or THS4500IDGK equivalent, this page provides verified specifications, package-validated pin functions, real-world use cases in wireless receivers and ADC interfaces, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The THS4500IDGK implements a fully differential architecture with independent input common-mode range (–5.7 V to +2.6 V with ±5 V supply) and output common-mode voltage control via VOCM pin. Its internal feedback structure supports gain configurations from +1 to +10, with bandwidth scaling inversely with gain (e.g., 370 MHz at G = +1, 30 MHz at G = +10).
Power-down functionality is enabled by a dedicated PD pin with defined enable/disable thresholds (–2.9 V min ON, –4.3 V max OFF under ±5 V), reducing quiescent current to ≤1.2 mA while maintaining high-impedance inputs and controlled output state during sleep mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at G = +1, ±5 V - enables baseband-to-IF signal amplification up to UHF without gain peaking or phase degradation |
| Slew rate | 2800 V/μs - supports fast transient response for high-speed ADC sampling clocks and pulse-shaped RF signals |
| IMD3 | –90 dBc at 30 MHz, 2 VPP output - ensures minimal spectral regrowth in wideband receiver front-ends |
| OIP3 | 49 dBm at 30 MHz - provides robust linearity for handling strong adjacent-channel interferers |
| Input voltage noise | 7 nV/√Hz above 1 MHz - preserves SNR in low-level analog signal paths before digitization |
| Power-down current | ≤1200 μA - allows system-level power gating without external biasing circuitry |
| Common-mode input range | –5.7 V to +2.6 V (±5 V supply) - accommodates rail-to-rail single-ended sources including negative-biased sensors |
Pinout & Package
The THS4500IDGK is housed in an 8-pin MSOP package with PowerPAD™ thermal enhancement (DGK suffix), requiring solder connection of the exposed pad to a PCB ground plane for optimal thermal performance and distortion stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node accepting complementary signal; supports common-mode range extending to negative rail |
| VIN+ | Non-inverting input | Differential input node accepting primary signal; matched impedance and offset to VIN− for CMRR >70 dB |
| VOCM | Output common-mode voltage control | Analog input setting DC level of differential output pair; default 0 V when floating (±5 V supply) |
| VS+ | Positive supply | Accepts +5 V (single) or +5 V (dual); must be decoupled with 0.1 µF + 10 µF per datasheet layout guidelines |
| VOUT+ | Positive differential output | Active output terminal delivering amplified inverted signal relative to VOUT−; drives 50 Ω or 800 Ω loads |
| PD | Power-down enable | Active-low digital control pin; pulls device into low-current state below –4.3 V (±5 V supply) |
| VS− | Negative supply | Accepts 0 V (single) or –5 V (dual); requires symmetric decoupling for PSRR >70 dB |
| VOUT− | Negative differential output | Complementary output terminal completing differential pair; balanced amplitude and phase with VOUT+ |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates even-order harmonics and common-mode noise coupling in mixed-signal PCB layouts |
| Output common-mode control (VOCM) | Enables precise alignment of differential output DC level to ADC input requirements without external resistive dividers |
| Power-down capability | Reduces system idle power by >95% while preserving input/output isolation and enabling rapid wake-up (<1 µs) |
| Wide supply range | Operates from 5 V single supply to ±15 V dual supply, supporting legacy industrial and modern low-voltage designs |
| Input common-mode range includes VS− | Allows direct interface to ground-referenced or negative-biased transducers without level-shifting circuitry |
Applications
| Wireless Communication Receiver Chain | High-Speed ADC Preamplifier |
|---|---|
Use Scenario: Amplifying downconverted IF signals in LTE/WiMAX base station receivers prior to digitization. IC Role / Device Role / Timing Role: Fully differential ADC driver providing gain, common-mode level translation, and distortion-limited signal conditioning. Use Value: –90 dBc IMD3 at 30 MHz prevents adjacent-channel interference masking weak desired signals in dense spectral environments. | Use Scenario: Driving the differential inputs of a 12-bit/80 MSps ADC in medical ultrasound beamforming modules. IC Role / Device Role / Timing Role: High-slew-rate buffer isolating analog front-end from ADC sampling kickback and maintaining signal integrity across 200 MHz bandwidth. Use Value: 2800 V/μs slew rate ensures <6.3 ns settling to 0.1% for 4 VPP steps, matching ADC aperture uncertainty requirements. |
| Single-Ended to Differential Conversion | Differential Line Driver |
Use Scenario: Converting single-ended clock or sensor outputs to balanced differential format for noise-immune transmission over PCB traces or cables. IC Role / Device Role / Timing Role: Active balun with VOCM-adjustable output common-mode voltage for flexible interfacing. Use Value: Input common-mode range extending to VS− allows direct connection to 0 V-referenced sources without AC coupling or bias networks. | Use Scenario: Driving 50 Ω differential transmission lines in test equipment signal generators and arbitrary waveform outputs. IC Role / Device Role / Timing Role: High-current differential output stage delivering ±7.4 V swing into 1 kΩ load with <0.5 ns rise/fall times. Use Value: 120 mA output drive capability sustains full-scale output into low-impedance loads without clipping or droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4501IDGK | No power-down pin; identical AC/DC performance and pinout except NC on PD location | Preferred where continuous operation is required and system-level power management is handled externally | Select THS4501IDGK if power-down functionality is unnecessary and board space allows same footprint |
| THS4521IDGKT | Lower bandwidth (1.8 GHz GBW), higher supply current (32 mA), no VOCM pin, rail-to-rail output | Better suited for DC-coupled, high-gain (>10) stages where VOCM control is not needed | Choose THS4521IDGKT only when >1 GHz small-signal bandwidth is required and VOCM control can be omitted |
Compared with THS4501IDGK and THS4521IDGKT, the THS4500IDGK uniquely combines power-down control, VOCM adjustability, and 370 MHz bandwidth in an 8-pin MSOP-making it optimal for battery-sensitive or duty-cycled instrumentation where dynamic power scaling and precise ADC interface alignment are critical.
Availability
THS4500IDGK is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, and automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for THS4500IDGK 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-performance signal chain components.
The THS4500 series belongs to TI's precision high-speed amplifier product line, engineered specifically for demanding ADC driving, RF receiver, and differential signaling applications where linearity, bandwidth, and power efficiency must coexist.
FAQ
What is the maximum operating temperature range for the THS4500IDGK?
The THS4500IDGK is rated for industrial temperature operation from –40°C to +85°C, as indicated by the "I" suffix in the part number. Its maximum junction temperature is +125°C for continuous reliability, and absolute maximum rating is +150°C. Thermal design must ensure the PowerPAD™ is properly soldered to a thermally conductive PCB plane to maintain junction temperature within limits under full load.
Does the THS4500IDGK require external compensation for unity-gain stability?
No, the THS4500IDGK is internally compensated for unity-gain stability across its specified supply ranges (±5 V, ±7.5 V, 5 V, 15 V). The datasheet confirms stable operation with G = +1 using standard 392 Ω feedback and gain-setting resistors, achieving 370 MHz bandwidth and 150 MHz 0.1-dB flatness without added compensation networks.
How does the VOCM pin function when left unconnected on the THS4500IDGK?
When the VOCM pin is left floating on the THS4500IDGK under ±5 V supply, it defaults to approximately 0 V ±0.1 V, establishing a centered differential output common-mode voltage. This default behavior allows immediate operation without external biasing, though active VOCM control is recommended for precise ADC input level alignment or single-supply operation where 0 V is not optimal.
Can the THS4500IDGK drive a 50 Ω differential load directly?
Yes, the THS4500IDGK can drive a 50 Ω differential load (i.e., 25 Ω per side) with verified performance: differential output voltage swing is ±7.4 V minimum into 1 kΩ, and output current drive is ≥100 mA into 20 Ω. For 50 Ω loads, output swing remains linear with <–60 dBc harmonic distortion at 10 MHz, provided proper PCB layout and supply decoupling per the datasheet's layout guidelines are followed.
What is the power-down quiescent current specification for the THS4500IDGK?
The THS4500IDGK draws ≤1200 μA quiescent current in power-down mode across the full industrial temperature range (–40°C to +85°C) and supply conditions (±5 V). This value is measured with PD pin held below –4.3 V, and includes residual input bias current (≤260 μA) and internal bias network leakage, enabling ultra-low standby power in portable or energy-conscious systems.
THS4500IDGK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-VSSOP
THS4500IDGK FAQ
1.How can I place an order for THS4500IDGK through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4500IDGK 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 THS4500IDGK reliable?
The price and inventory of THS4500IDGK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4500IDGK is usually 5 days.
3.What payment methods are accepted for THS4500IDGK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4500IDGK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4500IDGK?
THS4500IDGK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4500IDGK 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 THS4500IDGK?
For technical support, including THS4500IDGK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4500IDGK requirements.
6.How does Aetrix verify that THS4500IDGK is sourced from the original manufacturer or authorized distributors?
All THS4500IDGK 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 THS4500IDGK meets industry standards.
7.What is the process for return or replacement of THS4500IDGK?
All THS4500IDGK units undergo pre-shipment inspection (PSI). If there is an issue with THS4500IDGK, 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 THS4500IDGK part is unused and in its original packaging.
Return procedure for THS4500IDGK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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