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Texas Instruments THS4500CDGKR
- Part No.:
- THS4500CDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
THS4500CDGKR.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,367
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Product details
Overview
THS4500CDGKR from Texas Instruments is a high-linearity, fully differential amplifier designed for precision signal conditioning in high-speed data acquisition systems. It delivers 370 MHz small-signal bandwidth, –90 dBc third-order intermodulation distortion at 30 MHz, and power-down capability - enabling use as an ADC driver in 12-bit/80 MSps analog front-ends with ±5 V or single 5 V supply.
For engineers reviewing the THS4500CDGKR datasheet, THS4500CDGKR pinout, THS4500CDGKR application, or THS4500CDGKR equivalent, this page provides verified specifications, package mapping to MSOP-8 PowerPAD™, real-world application context for wireless receiver chains and active filtering, and validated alternative options for differential signal path design.
Technical Context
The THS4500CDGKR implements a fully differential architecture with independent input common-mode range extending to the negative rail and output common-mode voltage control (VOCM) with 180 MHz bandwidth. Its internal topology supports both single-ended-to-differential and differential-to-differential conversion without external level-shifting circuitry.
It features a dedicated power-down pin (PD) that reduces quiescent current to ≤1.2 mA while maintaining high-impedance inputs and controlled output state. The device operates across wide supply ranges (±5 V, +5 V, up to ±7.5 V or +15 V), with input bias current ≤5.2 μA and open-loop gain ≥50 dB over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal bandwidth | 370 MHz at ±5 V supply - enables baseband signal amplification through UHF frequencies without gain peaking. |
| Third-order IMD | –90 dBc at 30 MHz, 2 VPP output - ensures minimal spectral regrowth in wideband receiver IF stages. |
| Slew rate | 2800 V/μs at ±5 V - supports fast transient response for high-fidelity pulse and modulated signal reproduction. |
| OIP3 | 49 dBm at 30 MHz, referenced to 50 Ω - quantifies large-signal linearity headroom for RF/IF signal chain design. |
| Power-down current | ≤1200 μA - allows low-power standby mode in battery-sensitive or duty-cycled instrumentation systems. |
| Input voltage noise | 7 nV/√Hz above 1 MHz - contributes minimally to system noise floor in high-resolution ADC interfaces. |
| Common-mode input range | –5.7 V to +2.6 V at ±5 V supply - accommodates ground-referenced or negative-biased sensor signals directly. |
Pinout & Package
The THS4500CDGKR is housed in an 8-pin MSOP package with exposed thermal pad (PowerPAD™), optimized for high-frequency performance and thermal dissipation on compact PCB layouts.
| 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 swing. |
| VIN+ | Non-inverting input | Differential input node; paired with VIN− for balanced signal reception or single-ended conversion. |
| VOCM | Output common-mode control | Setpoint input for DC output common-mode voltage; enables precise alignment with ADC reference midpoints (e.g., 2.5 V). |
| VS+ | Positive supply | Accepts +5 V or +7.5 V (single supply) or +5 V (dual supply); decoupling required per TI layout guidelines. |
| VOUT+ | Positive differential output | Active output terminal; drives one leg of differential load (e.g., ADC input or transmission line). |
| PD | Power-down enable | Logic-controlled shutdown: >2.1 V (ON), <0.7 V (OFF); transitions within 1 μs with defined turn-on/turn-off delays. |
| VS− | Negative supply | Required for dual-supply operation (–5 V or –7.5 V); omitted in single-supply configurations using VS+ only. |
| VOUT− | Negative differential output | Complementary output terminal; maintains amplitude and phase symmetry with VOUT+ for balanced signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential architecture | Eliminates need for external baluns or transformer coupling; reduces even-order harmonics and improves PSRR/CMMR. |
| Output common-mode control (VOCM) | Enables direct interface to mid-scale-referenced ADCs (e.g., 2.5 V) without resistive divider networks or level shifters. |
| Power-down capability | Reduces system idle power by >95% while preserving input/output isolation and enabling rapid wake-up (<1 μs). |
| Wide supply range support | Operates from ±5 V to ±7.5 V or +5 V to +15 V - simplifies integration across mixed-voltage platforms and legacy designs. |
| Rail-to-rail input common-mode | Accepts inputs down to VS− (–5.7 V at ±5 V), allowing direct connection to sensors or DACs with negative output swing. |
Applications
| Wireless Communication Receiver IF Stage | Analog Front-End for High-Speed ADCs |
|---|---|
Use Scenario: Amplifying and conditioning intermediate frequency (IF) signals in LTE/WiFi baseband receivers before digitization. IC Role / Device Role / Timing Role: Fully differential ADC driver with VOCM alignment to match ADC reference voltage and suppress common-mode noise. Use Value: –90 dBc IMD3 at 30 MHz preserves adjacent-channel selectivity; 370 MHz bandwidth supports multi-carrier wideband IF sampling. |
Use Scenario: Driving 12-bit/80 MSps pipeline or SAR ADCs in test equipment and medical imaging systems. IC Role / Device Role / Timing Role: Precision gain stage with matched differential outputs, slew rate >2800 V/μs ensuring full-scale step fidelity. Use Value: 7 nV/√Hz input noise and 0.1-dB flatness to 150 MHz minimize SNR degradation in high-resolution digitization paths. |
| Single-Ended to Differential Signal Conversion | Active Differential Filtering |
Use Scenario: Converting legacy single-ended sensor outputs (e.g., op-amp buffers, DACs) into balanced differential signals for noise-immune transmission. IC Role / Device Role / Timing Role: High-gain, low-distortion converter with VOCM-adjustable output common-mode and rail-to-rail input range. Use Value: Input common-mode range includes VS− (–5.7 V), enabling direct interface to negative-output transducers without level-shifting circuitry. |
Use Scenario: Implementing high-Q, low-phase-error active filters in RF and instrumentation signal chains where common-mode rejection is critical. IC Role / Device Role / Timing Role: Core gain block in Sallen-Key or MFB filter topologies with differential feedback and VOCM-stabilized DC operating point. Use Value: 80 dB CMRR and 180 MHz VOCM bandwidth maintain filter center frequency accuracy under dynamic common-mode disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4501CDGKR | No power-down pin; otherwise identical AC/DC specs and pinout. | Preferred where continuous operation is required and power gating adds complexity. | Select THS4501CDGKR when system-level power sequencing does not require dynamic amplifier disable. |
| THS4521RGTR | Lower bandwidth (1.5 GHz GBW), higher supply current (30 mA), no VOCM pin; uses different package (QFN-16). | Better suited for >100 MHz closed-loop gains and ultra-low-noise preamp roles, but lacks VOCM flexibility. | Choose THS4521RGTR only if VOCM control is unnecessary and higher speed/gain-bandwidth is prioritized over power efficiency. |
Compared with THS4501CDGKR, THS4500CDGKR adds power-down functionality at identical linearity and bandwidth - making it optimal for intermittent-sampling systems. Versus THS4521RGTR, THS4500CDGKR trades raw speed for VOCM control, lower quiescent current, and MSOP-8 compatibility in space-constrained layouts.
Availability
THS4500CDGKR is available at Aetrix Electronics and suitable for wireless infrastructure, high-speed data acquisition, and precision instrumentation requiring stable component supply across industrial temperature grades (–40°C to +85°C).
Supply support for THS4500CDGKR 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 amplifier design and signal-chain solutions.
The THS4500 series belongs to TI's high-speed differential amplifier product line, engineered specifically for demanding ADC driving, IF signal conditioning, and single-ended-to-differential conversion in communications and test equipment.
FAQ
What is the maximum supply voltage for THS4500CDGKR?
The THS4500CDGKR supports a maximum dual supply of ±7.5 V and a maximum single supply of +15 V. Absolute maximum ratings specify ±8.25 V total supply difference, but recommended operating conditions limit continuous use to ±7.5 V or +15 V to ensure long-term reliability and specified performance across temperature.
Does THS4500CDGKR require external compensation components?
No, the THS4500CDGKR is internally compensated and stable for unity-gain (G = +1) configurations with standard feedback networks (e.g., RF = RG = 392 Ω). External compensation is not required for basic differential or single-ended-to-differential operation per the datasheet application circuits.
How does the VOCM pin function in THS4500CDGKR?
The VOCM pin sets the DC common-mode voltage of the differential outputs (VOUT+ and VOUT−). When driven with a stable voltage (e.g., 2.5 V), it forces the average of VOUT+ and VOUT− to match that value - enabling seamless interfacing with mid-scale-referenced ADCs without external resistive dividers.
What is the typical power-down current of THS4500CDGKR?
The typical power-down current of THS4500CDGKR is 800 μA at +25°C, with a maximum of 1200 μA over the full industrial temperature range (–40°C to +85°C). This represents >95% reduction versus normal operating current (~25 mA), enabling significant system-level power savings during idle periods.
Can THS4500CDGKR drive a 50 Ω differential load?
Yes, THS4500CDGKR can drive a 50 Ω differential load (i.e., 25 Ω per leg) with full output swing and maintained linearity, though output voltage swing is reduced compared to higher-impedance loads. The datasheet confirms 100 mA minimum differential output current drive capability, sufficient for 50 Ω termination at ±3.3 V swing under 5 V supply.
THS4500CDGKR 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:
- 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:
- -
- 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-VSSOP
THS4500CDGKR FAQ
1.How can I place an order for THS4500CDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4500CDGKR 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 THS4500CDGKR reliable?
The price and inventory of THS4500CDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4500CDGKR is usually 5 days.
3.What payment methods are accepted for THS4500CDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4500CDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4500CDGKR?
THS4500CDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4500CDGKR 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 THS4500CDGKR?
For technical support, including THS4500CDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4500CDGKR requirements.
6.How does Aetrix verify that THS4500CDGKR is sourced from the original manufacturer or authorized distributors?
All THS4500CDGKR 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 THS4500CDGKR meets industry standards.
7.What is the process for return or replacement of THS4500CDGKR?
All THS4500CDGKR units undergo pre-shipment inspection (PSI). If there is an issue with THS4500CDGKR, 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 THS4500CDGKR part is unused and in its original packaging.
Return procedure for THS4500CDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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