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Texas Instruments THS4504DGKR
- Part No.:
- THS4504DGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS4504DGKR.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,885
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Product details
Overview
THS4504DGKR from Texas Instruments is a wideband, low-distortion fully differential amplifier with power-down capability, designed as a high-linearity ADC driver for 12-bit/80-MSps data converters. It delivers 260 MHz small-signal bandwidth, –73 dBc third-order intermodulation distortion at 30 MHz, and ±8 V differential output swing under ±5 V supplies - enabling precision signal conditioning in wireless receiver chains and active filtering applications.
For engineers reviewing the THS4504DGKR datasheet, THS4504DGKR pinout, THS4504DGKR application, or THS4504DGKR equivalent, key selection criteria include its power-down functionality (PD pin), VOCM-controlled common-mode output, input common-mode range extending to the negative rail, and MSOP-8 PowerPAD™ package optimized for thermal performance and board space efficiency.
Technical Context
The THS4504DGKR implements a fully differential architecture with independent VOCM input for precise output common-mode voltage setting, supporting both single-ended-to-differential and differential-to-differential conversion. Its high slew rate (1800 V/µs) and low harmonic distortion enable clean signal amplification up to 40 MHz for 12-bit resolution systems.
It features a dedicated power-down pin (PD) that reduces quiescent current to ≤1.2 mA while maintaining high-impedance outputs, and supports dual-supply (±5 V to ±7.5 V) or single-supply (4.5–15 V) operation - making it suitable for portable and base-station RF front-ends requiring dynamic power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 260 MHz at G = 1 (±5 V), enabling wideband IF/RF signal conditioning up to cellular/WiFi bands |
| Slew rate | 1800 V/µs (±5 V), ensuring faithful reproduction of fast transient signals without slewing-induced distortion |
| IMD3 @ 30 MHz | –73 dBc, meeting linearity requirements for 12-bit ADC interfaces in LTE/WCDMA receivers |
| OIP3 @ 30 MHz | 29 dBm (50 Ω referenced), supporting high dynamic range signal chain design |
| Differential output swing | ±8 V (RL = 1 kΩ, ±5 V supply), driving ADC inputs over full-scale range with headroom |
| Power-down current | ≤1200 µA (max), reducing system standby power without external biasing circuitry |
| Input CM range | –5.7 V to +2.6 V (±5 V), allowing direct interfacing to ground-referenced sensors or DACs |
Pinout & Package
The THS4504DGKR is housed in an 8-pin MSOP package with PowerPAD™ thermal pad (DGK suffix), providing enhanced thermal dissipation and improved ac performance versus SOIC-8. The exposed pad must be soldered to PCB ground for optimal junction temperature control.
| 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; paired with VIN− for balanced signal acquisition or single-ended conversion |
| VOCM | Output common-mode control | Analog input setting DC level of differential outputs; enables interface to ADC reference voltages (e.g., 2.5 V) |
| VS+ | Positive supply | Accepts +5 V to +7.5 V (dual) or +4.5 V to +15 V (single); decoupling required per TI layout guidelines |
| VS− | Negative supply | Accepts –5 V to –7.5 V (dual); tied to ground in single-supply mode; requires local bypass capacitor |
| VOUT+ | Positive differential output | Drives ADC AIN+ or downstream differential load; maintains balance within –65 dB error up to 100 kHz |
| VOUT− | Negative differential output | Complementary output to VOUT+; matched impedance and timing critical for CMRR preservation |
| PD | Power-down enable | Active-low logic input; pulls below 0.7 V (5 V supply) or –4.3 V (±5 V) to enter low-power state |
Key Features
| Feature | Design Value |
|---|---|
| Power-down capability | Reduces quiescent current to <1.2 mA while preserving high-impedance outputs - ideal for time-division duplex (TDD) systems |
| Fully differential architecture | Rejects even-order harmonics and common-mode noise; improves SNR by >10 dB vs single-ended drivers in mixed-signal PCBs |
| VOCM-controlled output level | Enables precise alignment of differential output midpoint to ADC reference (e.g., 2.5 V), eliminating level-shifting components |
| Rail-to-rail input common-mode range | Includes VS− rail (down to –5.7 V @ ±5 V), allowing direct connection to bipolar DACs or transimpedance amplifier outputs |
| High OIP3 and low IMD3 | 29 dBm OIP3 and –73 dBc IMD3 at 30 MHz support multi-carrier LTE/WiMAX signal integrity without front-end attenuation |
Applications
| Wireless Base Station Receiver | High-Speed Data Acquisition System |
|---|---|
Use Scenario: Digitizing 30-MHz IF signals from quadrature demodulators in LTE femtocells. IC Role / Device Role / Timing Role: ADC driver stage converting single-ended I/Q outputs to fully differential inputs for 12-bit, 80-MSps ADCs. Use Value: –73 dBc IMD3 ensures <–70 dBFS intermodulation spurs, preserving EVM compliance across 20-MHz channel bandwidths. | Use Scenario: Conditioning analog sensor outputs (e.g., piezoelectric accelerometers) before digitization in industrial DAQ modules. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate buffer and level shifter driving differential ADC inputs with programmable common-mode offset. Use Value: Input CM range including VS− allows direct interface to unipolar/bipolar sensors; 8 nV/√Hz voltage noise preserves sub-LSB resolution. |
| Portable Spectrum Analyzer Front-End | Active Differential Filter Stage |
Use Scenario: Intermediate-frequency amplification in handheld analyzers operating from battery-powered ±5-V rails. IC Role / Device Role / Timing Role: Power-gated gain block enabling rapid on/off cycling during sweep pauses to extend battery life. Use Value: PD pin reduces supply current from 25 mA to <1.2 mA in <1 µs, cutting idle power by >95% without compromising startup settling. | Use Scenario: Implementing 2nd-order Chebyshev bandpass response in RF test equipment using THS4504DGKR-based gyrator topology. IC Role / Device Role / Timing Role: Active element in fully differential filter with VOCM-set center frequency and tunable Q-factor. Use Value: 260-MHz bandwidth and 0.1-dB flatness to 65 MHz ensure minimal passband ripple and group delay variation across 10–50 MHz bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4505DGKR | No power-down pin; otherwise identical AC/DC specs and pinout (except NC on PD location) | Preferred where continuous operation is required and power gating adds complexity | Select THS4505DGKR only if power-down functionality is unnecessary - same footprint and layout, no redesign needed |
| ADA4940-1ARZ | Lower bandwidth (560 MHz), higher PSRR (95 dB), but no VOCM pin - uses internal reference or resistor divider | Better suited for precision dc-coupled systems where common-mode control flexibility is secondary to PSRR | Choose ADA4940-1ARZ when ultra-low offset drift (<1 µV/°C) and superior supply rejection outweigh VOCM configurability |
Compared with THS4505DGKR, the THS4504DGKR adds power-down control at identical performance and pin compatibility; versus ADA4940-1ARZ, it trades PSRR and offset stability for VOCM programmability and lower cost in RF signal chains.
Availability
THS4504DGKR is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed data acquisition, portable test equipment, and active filtering applications requiring stable component supply and long-term production continuity.
Supply support for THS4504DGKR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The THS4504DGKR belongs to TI's high-speed differential amplifier product line, engineered specifically for demanding ADC driver and RF signal conditioning roles where linearity, bandwidth, and power efficiency are co-optimized.
FAQ
What is the maximum supply voltage rating for the THS4504DGKR?
The THS4504DGKR has an absolute maximum supply voltage of ±7.5 V for dual-supply operation or 15 V for single-supply use. Operating beyond these limits risks permanent damage. Recommended conditions specify ±5 V to ±7.5 V dual or 4.5–15 V single supply, with thermal derating required above +85°C ambient.
How does the VOCM pin function in the THS4504DGKR?
The VOCM pin on the THS4504DGKR sets the common-mode voltage of the differential outputs (VOUT+ and VOUT−). When driven with a stable DC voltage (e.g., 2.5 V), it forces the output midpoint to match that level - enabling seamless interfacing with ADC references without external level-shifting networks. Input impedance is 25 kΩ || 1 pF.
What is the typical power-down quiescent current of the THS4504DGKR?
The THS4504DGKR draws ≤1200 µA (maximum) in power-down mode at +85°C, with typical values of 800 µA at +25°C under ±5 V supplies. This reduction from 25 mA active current enables significant power savings in TDD or burst-mode systems without sacrificing output isolation.
Can the THS4504DGKR drive a 50-Ω differential load directly?
No - the THS4504DGKR is not specified to drive 50-Ω differential loads continuously. Its minimum recommended load is 200 Ω differential (or 100 Ω single-ended), with 800 Ω used in characterization. Driving 50 Ω risks excessive current (exceeding 150 mA absolute max) and thermal overload; external series resistors or buffer stages are required for 50-Ω interface.
What package type does the THS4504DGKR use, and how should the PowerPAD™ be handled?
The THS4504DGKR uses an 8-pin MSOP package with exposed thermal pad (DGK suffix). The PowerPAD™ must be soldered to a solid copper thermal plane connected to PCB ground - not left floating - to maintain junction temperature ≤+125°C and ensure specified distortion performance and reliability.
THS4504DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 1800V/µs
- Gain Bandwidth Product:
- 210 MHz
- -3db Bandwidth:
- 260 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 16mA
- Current - Output / Channel:
- -
- 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
THS4504DGKR FAQ
1.How can I place an order for THS4504DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4504DGKR 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 THS4504DGKR reliable?
The price and inventory of THS4504DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4504DGKR is usually 5 days.
3.What payment methods are accepted for THS4504DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4504DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4504DGKR?
THS4504DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4504DGKR 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 THS4504DGKR?
For technical support, including THS4504DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4504DGKR requirements.
6.How does Aetrix verify that THS4504DGKR is sourced from the original manufacturer or authorized distributors?
All THS4504DGKR 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 THS4504DGKR meets industry standards.
7.What is the process for return or replacement of THS4504DGKR?
All THS4504DGKR units undergo pre-shipment inspection (PSI). If there is an issue with THS4504DGKR, 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 THS4504DGKR part is unused and in its original packaging.
Return procedure for THS4504DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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