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Texas Instruments THS4502CDGN
- Part No.:
- THS4502CDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4502CDGN.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,438
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Product details
Overview
THS4502CDGN from Texas Instruments is a high-performance fully differential amplifier with power-down capability, designed for precision signal conditioning in high-speed data acquisition systems. It delivers 370 MHz small-signal bandwidth, 2800 V/µs slew rate, and -95 dBc third-order intermodulation distortion at 30 MHz - enabling 14-bit ADC preamplification up to 40 MHz in ±5 V or single 5 V supply configurations.
For engineers reviewing the THS4502CDGN datasheet, THS4502CDGN pinout, THS4502CDGN application, or THS4502CDGN equivalent, key selection criteria include its centered input common-mode range, output common-mode voltage control (VOCM), power-down functionality with 800 µA quiescent current, and thermal derating requirement below +60°C junction temperature.
Technical Context
The THS4502CDGN employs a fully differential architecture with symmetrical input and output stages optimized for low harmonic distortion and high OIP3 (51 dBm at 30 MHz). Its VOCM terminal enables precise setting of differential output common-mode level independent of gain configuration, supporting seamless interfacing with modern ADCs requiring programmable reference levels.
Unlike the THS4503, the THS4502CDGN integrates a dedicated power-down pin (PD) that disables the amplifier core while maintaining high-impedance inputs and outputs, reducing quiescent current from 32 mA to ≤1.2 mA. This feature is implemented via internal bias current switching rather than output stage shutdown alone.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at G = +1, ±5 V supply - supports wideband analog front-end designs up to UHF frequencies. |
| Slew rate | 2800 V/µs - ensures faithful reproduction of fast transient signals without slewing-induced distortion. |
| IMD3 | -95 dBc at 30 MHz, 2 VPP output - meets linearity requirements for 14-bit ADC drivers in communications receivers. |
| OIP3 | 51 dBm at 30 MHz - enables high dynamic range signal chain design with minimal intermodulation products. |
| Power-down quiescent current | ≤1200 µA - reduces system-level standby power in battery-operated or duty-cycled instrumentation. |
| Input common-mode range | ±4.0 V (±5 V supply) - accommodates rail-to-rail input signals while maintaining CMRR >70 dB. |
| Output swing (differential) | ±7.4 V into 1 kΩ (±5 V supply) - provides ample headroom for driving high-impedance ADC inputs. |
Pinout & Package
The THS4502CDGN is housed in an 8-pin MSOP PowerPAD™ package (DGN), featuring enhanced thermal dissipation and compact footprint. The exposed thermal pad must be soldered to a PCB copper plane for reliable operation below +60°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; requires matched layout to VIN+ for optimal CMRR and balance. |
| VIN+ | Non-inverting input | Differential input node; symmetric routing critical to preserve 58 dB output balance error performance. |
| VOCM | Output common-mode control | Analog input setting DC offset of differential output pair; drives 25 kΩ || 1 pF load. |
| VS+ | Positive supply | Accepts +5 V (single) or +5 V to +7.5 V (dual); decoupling required per TI SLMA002 guidelines. |
| VOUT+ | Positive differential output | Active output node; capable of sourcing/sinking 100 mA into 20 Ω load at ±5 V supply. |
| PD | Power-down enable | Logic-controlled shutdown: ≥2.1 V enables, ≤0.7 V disables; 1 µs turnoff delay. |
| VS− | Negative supply | Accepts −5 V to −7.5 V (dual supply); must be referenced to same ground as VS+ for stability. |
| VOUT− | Negative differential output | Complementary output to VOUT+; maintains <0.1 Ω closed-loop impedance at 1 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates even-order harmonics and rejects common-mode noise in mixed-signal systems. |
| Centered input common-mode range | Supports bipolar input signals centered at mid-supply, simplifying interface with sensors and DACs. |
| Output common-mode voltage control | Enables precise alignment of differential output to ADC reference voltage without external resistive dividers. |
| Power-down capability | Reduces system idle power by >95% while preserving input/output high-impedance state for multiplexed architectures. |
| Wide supply voltage range | Operates from ±5 V to ±7.5 V or single 4.5–15 V - compatible with legacy and modern supply rails. |
Applications
| High Linearity ADC Preamplifier | Wireless Communication Receiver Chain |
|---|---|
|
Use Scenario: Driving a 14-bit, 80 MSps ADC in a baseband receiver with 2 VPP full-scale input. IC Role / Device Role / Timing Role: Fully differential gain stage providing signal amplification, common-mode level shifting, and distortion suppression before digitization. Use Value: Achieves -94 dBc IMD3 at 30 MHz, enabling ENOB >13.5 bits across 40 MHz bandwidth without external filtering. |
Use Scenario: IF sampling stage in LTE femtocell receiver processing 20 MHz channel bandwidth at 190 MHz IF. IC Role / Device Role / Timing Role: Differential line driver converting single-ended mixer output to balanced ADC input while rejecting local oscillator leakage. Use Value: 52 dBm OIP3 and 80 dB PSRR suppress adjacent-channel interference and supply noise coupling into signal path. |
| Single-Ended to Differential Conversion | Active Filtering of Differential Signals |
|
Use Scenario: Converting output of a single-ended DAC to differential format for driving high-speed balun-less RF DACs. IC Role / Device Role / Timing Role: Precision active converter with matched gain and phase response on both output legs. Use Value: Output balance error ≤-58 dB ensures <0.1° phase mismatch at 100 kHz, minimizing image rejection degradation. |
Use Scenario: Implementing 2nd-order Chebyshev low-pass filter with 100 MHz cutoff in test equipment signal generator output stage. IC Role / Device Role / Timing Role: Active filter integrator with programmable VOCM for DC offset cancellation in feedback loop. Use Value: 370 MHz bandwidth allows filter Q-factor tuning without gain peaking; VOCM enables zero-output-offset filter response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4503CDGN | No power-down pin; identical AC/DC specs and pinout except PD replaced by NC. | Preferred where continuous operation is required and power cycling is unnecessary. | Select THS4503CDGN when system-level power management is handled externally or not required. |
| THS4502IDGN | Same functionality but rated for -40°C to +85°C industrial temperature range vs. 0°C to +70°C for THS4502CDGN. | Required for outdoor infrastructure, automotive body electronics, or industrial PLC analog modules. | Choose THS4502IDGN when ambient operating temperature exceeds 70°C or extended reliability validation is mandated. |
Compared with THS4503CDGN, THS4502CDGN adds power-down control at no AC performance cost; compared with THS4502IDGN, it offers lower cost and qualification for commercial-grade applications with tighter thermal constraints.
Availability
THS4502CDGN is available at Aetrix Electronics and suitable for high-speed data acquisition, wireless infrastructure, and precision instrumentation requiring stable component supply across production lifecycles.
Supply support for THS4502CDGN 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 manufacturing.
The THS4502 belongs to TI's high-linearity fully differential amplifier product line, engineered specifically for demanding signal chain applications including ADC driving, RF IF conditioning, and precision sensor interfaces.
FAQ
What is the maximum junction temperature limit for reliable operation of the THS4502CDGN?
The THS4502CDGN must be operated with junction temperature maintained below +60°C to prevent low-level oscillation. Exceeding this threshold risks instability and degraded distortion performance. Thermal design must ensure θJA of 58.4°C/W is achieved via proper PowerPAD soldering to a thermally robust PCB plane, especially under ±5 V or higher supply conditions.
How does the VOCM pin function in the THS4502CDGN, and what voltage range is supported?
The VOCM pin on the THS4502CDGN sets the DC common-mode level of the differential output pair. When driven with a stable voltage (e.g., 2.5 V), it forces VOUT+ and VOUT− to center around that value. Input voltage range is ±4 V (±5 V supply) or 1 V to 4 V (5 V single supply), with input bias current ≤3 µA and impedance of 25 kΩ || 1 pF.
What are the power-down timing characteristics of the THS4502CDGN?
The THS4502CDGN exhibits 1000 ns typical turnon delay and 800 ns typical turnoff delay when transitioning between active and power-down states. The PD pin thresholds are ≥2.1 V for enable and ≤0.7 V for disable under 5 V supply; quiescent current drops from 32 mA to ≤1200 µA in power-down mode.
Can the THS4502CDGN drive a 50 Ω differential load directly?
The THS4502CDGN is not specified to drive 50 Ω differential loads continuously. Its minimum recommended load is 20 Ω per side (i.e., 40 Ω differential), delivering 100 mA output current. For true 50 Ω differential termination, external series resistors or a buffer stage are required to avoid excessive power dissipation and thermal runaway.
What is the difference between THS4502CDGN and THS4502CD?
The THS4502CDGN uses an 8-pin MSOP PowerPAD package with superior thermal performance (θJA = 58.4°C/W), while the THS4502CD is in an 8-pin SOIC package (θJA = 97.5°C/W). Both share identical electrical specifications and pinout, but the DGN variant enables higher sustained output power and improved reliability in space-constrained, thermally demanding layouts.
THS4502CDGN 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:
- 2800V/µs
- Gain Bandwidth Product:
- 300 MHz
- -3db Bandwidth:
- 370 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 23mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4502CDGN FAQ
1.How can I place an order for THS4502CDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4502CDGN 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 THS4502CDGN reliable?
The price and inventory of THS4502CDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4502CDGN is usually 5 days.
3.What payment methods are accepted for THS4502CDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4502CDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4502CDGN?
THS4502CDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4502CDGN 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 THS4502CDGN?
For technical support, including THS4502CDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4502CDGN requirements.
6.How does Aetrix verify that THS4502CDGN is sourced from the original manufacturer or authorized distributors?
All THS4502CDGN 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 THS4502CDGN meets industry standards.
7.What is the process for return or replacement of THS4502CDGN?
All THS4502CDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4502CDGN, 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 THS4502CDGN part is unused and in its original packaging.
Return procedure for THS4502CDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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