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Texas Instruments THS4504DGN
- Part No.:
- THS4504DGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4504DGN.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:118
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Product details
Overview
THS4504DGN 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 260 MHz small-signal bandwidth, –73 dBc third-order intermodulation distortion at 30 MHz, and 1800 V/µs slew rate under ±5 V supply, enabling precise 12-bit, 80 MSps data acquisition.
For engineers reviewing the THS4504DGN datasheet, THS4504DGN pinout, THS4504DGN application, or THS4504DGN equivalent, this page provides verified specifications, package-validated pin functions, real-world use scenarios in wireless receivers and active filtering, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The THS4504DGN implements a fully differential architecture with independent output common-mode voltage control via the VOCM pin, supporting both single-ended-to-differential and differential-to-differential conversion. Its input common-mode range extends to the negative rail (–5.7 V at ±5 V supply), enabling direct interfacing with ground-referenced sources.
Power-down functionality is implemented through a dedicated PD pin with defined enable/disable thresholds (≥2.1 V ON, ≤0.7 V OFF under 5 V supply), reducing quiescent current from 14–21 mA to ≤1.2 mA while maintaining high-impedance outputs and controlled turn-on/off delays (1000 ns / 800 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 260 MHz at G = 1, ±5 V supply - supports wideband IF sampling up to 125 MHz Nyquist zone without gain peaking. |
| Slew rate | 1800 V/µs (±5 V) - enables full-scale 2 VPP step response within 1.1 ns rise time for high-speed transient fidelity. |
| IMD3 distortion | –73 dBc at 30 MHz, 200 kHz tone spacing - ensures <0.2% harmonic corruption in 3G/4G LTE receiver front-ends. |
| OIP3 | 29 dBm at 30 MHz, referenced to 50 Ω - provides robust linearity margin before compression in baseband-to-IF stages. |
| Input voltage noise | 8 nV/√Hz above 1 MHz - minimizes added noise floor when driving 12-bit ADCs with ≥70 dB SNR requirement. |
| Power-down current | ≤1200 µA max at +85°C - reduces system standby power by >90% while preserving bias state for fast wake-up. |
| Common-mode input range | –5.7 V to +2.6 V (±5 V supply) - accepts rail-to-rail single-ended inputs without level-shifting circuitry. |
Pinout & Package
THS4504DGN is housed in an 8-pin MSOP-PowerPAD™ (DGN) package with exposed thermal pad electrically isolated from all pins. The PowerPAD enhances thermal dissipation (θJC = 4.7°C/W), enabling stable operation at 685 mW continuous power at +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; accepts signals down to –5.7 V with rail-to-rail CMVR support. |
| VIN+ | Non-inverting input | Differential input node; complements VIN− for balanced signal acquisition. |
| VOCM | Output common-mode control | DC-biases differential outputs to user-defined voltage (1–3.7 V range at 5 V supply); defaults to 2.5 V when floating. |
| VS+ | Positive supply | Accepts +5 V, +12 V, or +15 V single supply or +5 V/+7.5 V dual supply; internal regulation not required. |
| VOUT+ | Positive differential output | Delivers amplified, phase-aligned signal; maintains balance error ≤–65 dB up to 100 kHz. |
| PD | Power-down enable | Active-high logic input; asserts shutdown when ≤0.7 V, entering ultra-low-current mode in <1 µs. |
| VS− | Negative supply | Required for dual-supply operation (e.g., –5 V); may be tied to GND for single-supply use. |
| VOUT− | Negative differential output | Complementary output to VOUT+; enables true differential signaling into ADC or transmission line. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Rejects common-mode noise on PCB traces and cables, improving SNR by ≥70 dB over single-ended drivers. |
| Output common-mode voltage control | Allows precise alignment of differential output swing to ADC reference mid-point (e.g., 2.5 V), eliminating DC blocking capacitors. |
| Power-down capability | Reduces system idle power by >90% while retaining pin states; supports rapid reactivation (<1.5 µs total latency). |
| Rail-to-rail input common-mode range | Enables direct connection to ground-referenced sensors or DAC outputs without external level shifters. |
| High OIP3 and low IMD3 | Supports multi-carrier LTE/WCDMA signals with minimal adjacent-channel interference in receiver I/Q paths. |
Applications
| Wireless Communication Receiver | High-Speed Data Acquisition |
|---|---|
Use Scenario: Front-end IF amplifier in 3G/4G base station receiver, converting single-ended mixer output to differential input for 12-bit, 80 MSps ADC. IC Role / Device Role / Timing Role: ADC driver with gain = 1, providing matched amplitude/phase paths and VOCM-controlled common-mode offset. Use Value: –73 dBc IMD3 at 30 MHz prevents spectral regrowth that would violate ACLR mask requirements in multi-carrier systems. |
Use Scenario: Buffering and level-shifting analog sensor output (e.g., strain gauge bridge) into SAR ADC with internal reference. IC Role / Device Role / Timing Role: Precision gain stage with rail-to-rail input, rejecting EMI-coupled noise on long sensor cables. Use Value: 8 nV/√Hz input voltage noise preserves >70 dB SNR in 100 kHz bandwidth measurement channels. |
| Active Differential Filtering | Single-Ended to Differential Conversion |
Use Scenario: Implementing 2nd-order active bandpass filter between RF demodulator and ADC, using THS4504DGN as transconductance element. IC Role / Device Role / Timing Role: Fully differential op-amp core in MFB topology, with VOCM setting filter center DC bias. Use Value: 260 MHz GBW ensures filter group delay flatness across 20 MHz passband with <0.1 dB ripple. |
Use Scenario: Converting output of single-ended DAC (e.g., DAC8830) to differential format for driving balanced transmission lines or transformerless ADC inputs. IC Role / Device Role / Timing Role: Unity-gain inverter with VOCM = VREF/2, matching output impedance and common-mode to downstream stage. Use Value: Output balance error ≤–65 dB eliminates even-order harmonics that degrade SFDR in precision DAC applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4505DGN | No power-down pin; identical AC/DC specs, same MSOP-PowerPAD package and pinout except PD → NC. | Preferred where continuous operation is required and power gating adds complexity or risk of timing glitches. | Select THS4505DGN if system does not require dynamic power cycling and board layout must remain unchanged. |
| THS4521RGTT | Lower bandwidth (1.8 GHz GBW vs 260 MHz SS BW), higher supply current (25 mA vs 14–21 mA), 16-pin QFN package. | Better suited for >100 MHz IF sampling or JESD204B serializer interface; not drop-in due to pin count and footprint mismatch. | Choose THS4521RGTT only when >500 MSPS ADC interface or ultra-low noise (4.3 nV/√Hz) is mandatory. |
Compared with THS4505DGN, THS4504DGN adds power-down control at minor cost in quiescent current overhead; compared with THS4521RGTT, it offers proven 12-bit linearity at lower power and smaller footprint but lacks GHz-range bandwidth for next-gen ADCs.
Availability
THS4504DGN is available at Aetrix Electronics and suitable for wireless infrastructure, test equipment, and industrial data acquisition requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized TI distribution channels.
Supply support for THS4504DGN 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 innovation in high-performance signal chain components.
The THS4504DGN belongs to TI's high-speed differential amplifier product line, engineered specifically for precision ADC driving, RF receiver chains, and wideband active filtering in communications and instrumentation systems.
FAQ
What is the maximum supply voltage rating for THS4504DGN?
The absolute maximum supply voltage for THS4504DGN is ±7.5 V for dual supply or 15 V for single supply. Operation beyond these limits risks permanent damage. Recommended operating range is ±5 V to ±7.5 V dual or 4.5 V to 15 V single supply, with thermal derating applied above +85°C ambient per the DGN package dissipation ratings table.
Does THS4504DGN require external compensation for unity-gain stability?
No, THS4504DGN is internally compensated for unity-gain stability across its specified operating conditions. The datasheet confirms stable small-signal unity-gain frequency response up to 260 MHz with no external components required when driving ≥800 Ω loads, as verified in Figure 1 and Table 1.
How does the VOCM pin function when left unconnected on THS4504DGN?
When VOCM is left floating, THS4504DGN defaults to a nominal 2.5 V output common-mode voltage under 5 V supply (±0.1 V tolerance). This default enables immediate operation without external biasing, though precision applications should drive VOCM with a low-impedance source (e.g., resistor divider from VREF) to minimize drift and noise coupling.
What is the typical power-down quiescent current of THS4504DGN at +25°C?
The typical power-down quiescent current of THS4504DGN is 800 µA at +25°C, with a maximum of 1200 µA over temperature (–40°C to +85°C). This value is measured with PD ≤0.7 V, VS = ±5 V, and no load, confirming >90% reduction versus active-mode current (14–21 mA).
Can THS4504DGN drive a 50 Ω differential load directly?
THS4504DGN is not rated for continuous 50 Ω differential load driving. Its minimum specified load is 20 Ω per output (100 mA min drive), but sustained 50 Ω operation exceeds thermal limits in the MSOP-PowerPAD package. For 50 Ω interfaces, use series termination (e.g., 49.9 Ω) or buffer with a line driver; refer to Figure 28 load resistance vs output voltage curves for derating guidance.
THS4504DGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 130 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
THS4504DGN FAQ
1.How can I place an order for THS4504DGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4504DGN 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 THS4504DGN reliable?
The price and inventory of THS4504DGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4504DGN is usually 5 days.
3.What payment methods are accepted for THS4504DGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4504DGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4504DGN?
THS4504DGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4504DGN 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 THS4504DGN?
For technical support, including THS4504DGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4504DGN requirements.
6.How does Aetrix verify that THS4504DGN is sourced from the original manufacturer or authorized distributors?
All THS4504DGN 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 THS4504DGN meets industry standards.
7.What is the process for return or replacement of THS4504DGN?
All THS4504DGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4504DGN, 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 THS4504DGN part is unused and in its original packaging.
Return procedure for THS4504DGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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