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Texas Instruments THS4051CDR
- Part No.:
- THS4051CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
THS4051CDR.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,294
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Product details
Overview
THS4051CDR from Texas Instruments is a single-channel, high-speed voltage-feedback operational amplifier optimized for professional video, imaging, and communication signal conditioning. It delivers 70 MHz small-signal bandwidth (G = 1), 240 V/µs slew rate, 60 ns settling time to 0.1%, ±15 V dual-supply operation, and 0.01% differential gain error - enabling precision analog signal amplification in broadcast-grade video distribution systems.
For engineers reviewing the THS4051CDR datasheet, THS4051CDR pinout, THS4051CDR application, or THS4051CDR equivalent, this device is selected for high-fidelity analog signal paths requiring wide bandwidth, low distortion (−82 dBc at 1 MHz), stable unity-gain operation, and robust 100 mA output drive into 150 Ω loads.
Technical Context
The THS4051CDR employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling voltage-feedback architecture with inherently wide bandwidth and fast transient response. Its internal compensation ensures stability across all closed-loop gains in both inverting and non-inverting configurations without external compensation.
It features rail-to-rail input common-mode range (±14.3 V at ±15 V supply), 13 Ω open-loop output impedance, and low input capacitance (1.5 pF) - supporting high-frequency feedback networks and minimizing phase shift in active filter or driver stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 70 MHz at G = 1, ±15 V - supports full HD baseband video (30 MHz 0.1-dB flatness) without attenuation. |
| Slew rate | 240 V/µs at ±15 V - enables clean 20-Vpp output swings at >3 MHz without slewing distortion. |
| Settling time (0.1%) | 60 ns for 5-V step - meets timing-critical sampling and multiplexing requirements in imaging ADC drivers. |
| Total harmonic distortion | −82 dBc at 1 MHz, RL = 150 Ω - preserves signal fidelity in RF IF stages and composite video amplifiers. |
| Output current (continuous) | 100 mA typ at ±15 V - drives multiple 75-Ω video lines or low-impedance cables without gain compression. |
| Supply voltage range | ±4.5 V to ±16.5 V dual supply - accommodates legacy ±5 V, ±12 V, and ±15 V system rails. |
| Differential gain/phase error | 0.01% / 0.01° at NTSC, ±15 V - meets SMPTE RP-168 broadcast video linearity standards. |
Pinout & Package
THS4051CDR is packaged in an 8-pin SOIC (D package) with exposed thermal pad (PowerPAD™). This thermally enhanced plastic small-outline IC supports high-power dissipation (740 mW at TA = 25°C) and improved junction-to-ambient thermal resistance (θJA = 167°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | No internal connection - unused terminal; must be left floating or tied to ground per layout best practice. |
| 2 | IN− | Inverting input - accepts feedback network; high-impedance node (1 MΩ) with 1.5 pF capacitance. |
| 3 | IN+ | Non-inverting input - reference input node; common-mode range extends to ±14.3 V at ±15 V supply. |
| 4 | VCC− | Negative supply rail - connects to −VCC; requires local 0.1 µF ceramic bypass capacitor. |
| 5 | OUT | Amplified output - delivers up to ±13.6 V swing into 1 kΩ and 100 mA into 20 Ω load. |
| 6 | NC | No internal connection - pin 6 is unconnected in D-package variant; not bonded internally. |
| 7 | VCC+ | Positive supply rail - connects to +VCC; requires local 0.1 µF ceramic bypass capacitor. |
| 8 | NULL | No internal connection - unused terminal; electrically isolated from die. |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Unity-gain stable without external compensation - eliminates risk of oscillation in G = 1 video buffers. |
| Professional video performance | 0.01% differential gain / 0.01° differential phase - meets broadcast video linearity specs for NTSC at ±15 V. |
| High output drive | 100 mA continuous output current - drives four 75-Ω video loads simultaneously with minimal droop. |
| Low distortion | −82 dBc THD at 1 MHz, RL = 150 Ω - preserves SNR in IF amplification and high-speed data acquisition front-ends. |
| Wide supply range | ±4.5 V to ±16.5 V operation - interoperable with legacy ±5 V, ±12 V, and ±15 V analog subsystems. |
Applications
| Video Distribution Amplifier | High-Speed ADC Driver |
|---|---|
|
Use Scenario: Distributing composite NTSC/PAL video signals to multiple monitors or recording devices in broadcast infrastructure. IC Role / Device Role / Timing Role: Unity-gain buffer with ultra-low differential phase/gain error and 30 MHz 0.1-dB flatness. Use Value: Maintains color fidelity and sync integrity across 4+ parallel 75-Ω outputs without external equalization. |
Use Scenario: Driving the input of a 12-bit, 40-MSPS analog-to-digital converter in medical ultrasound front-end. IC Role / Device Role / Timing Role: High-slew-rate, low-noise gain stage preceding ADC sampling clock edge. Use Value: 60 ns settling ensures <0.1 LSB error during 25 ns conversion window; 14 nV/√Hz input noise preserves dynamic range. |
| RF IF Amplifier | Active Filter Stage |
|
Use Scenario: Amplifying 1–10 MHz intermediate frequency signals in software-defined radio receiver chains. IC Role / Device Role / Timing Role: Fixed-gain (G = 2) linear amplifier with −89 dBc THD at 1 MHz and 1 kΩ load. Use Value: Delivers >70 dB SFDR at 5 MHz while operating from ±5 V supply - reducing power vs. discrete solutions. |
Use Scenario: Implementing 5th-order Sallen-Key low-pass filter for anti-aliasing before high-speed DAC output. IC Role / Device Role / Timing Role: Low-output-impedance, high-drive op-amp enabling sharp roll-off without Q-peaking. Use Value: 13 Ω open-loop output resistance and 240 V/µs slew rate prevent group delay distortion in multi-pole topologies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4031CDR | 100 MHz bandwidth, 10 nV/√Hz input voltage noise, 6.5 mA supply current - higher speed but lower output drive (60 mA). | Better suited for low-noise preamp stages than video line driving; limited 0.1-dB flatness (12 MHz). | Select THS4031CDR when priority is input-referred noise over output current capability. |
| THS4081CDR | 175 MHz bandwidth, 12.5 mA supply current, 75 mA output drive - higher speed but reduced video linearity (0.03% DG). | Optimized for low-power portable instrumentation; differential phase error rises to 0.03° at ±5 V. | Choose THS4081CDR only if bandwidth >100 MHz is mandatory and video fidelity is secondary. |
Compared with THS4031CDR and THS4081CDR, the THS4051CDR uniquely balances 70 MHz bandwidth, 100 mA output drive, and broadcast-grade 0.01% differential gain - making it the preferred choice for video distribution and high-current IF amplification where signal integrity and load drive are co-critical.
Availability
THS4051CDR is available at Aetrix Electronics and suitable for video distribution systems, high-speed data acquisition front-ends, and RF IF amplification requiring stable component supply, long-term industrial availability, and traceable sourcing.
Supply support for THS4051CDR 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 and embedded processing solutions, with deep expertise in high-performance analog signal chain design and manufacturing.
The THS4051CDR belongs to TI's THS40xx family of high-speed voltage-feedback op-amps, engineered specifically for professional video, imaging, and communications applications demanding wide bandwidth, low distortion, and robust output drive.
FAQ
What is the maximum safe supply voltage for THS4051CDR?
The absolute maximum supply voltage for THS4051CDR is ±16.5 V. Operation beyond this rating risks permanent damage. Recommended operating range is ±4.5 V to ±16 V per the datasheet. At ±15 V, THS4051CDR achieves full specified performance including 70 MHz bandwidth and 240 V/µs slew rate. Always use local 0.1 µF ceramic bypass capacitors on both VCC+ and VCC− pins.
Can THS4051CDR drive a 75-Ω video load directly?
Yes, THS4051CDR can drive a 75-Ω video load directly with minimal degradation. At ±15 V supply, it delivers ±3.5 V output swing into 75 Ω (per RL = 150 Ω test condition scaling), and maintains 0.01% differential gain error critical for NTSC video. For multi-load distribution, its 100 mA output current supports up to four parallel 75-Ω terminations without gain collapse or thermal shutdown.
Is THS4051CDR unity-gain stable?
Yes, THS4051CDR is internally compensated for unity-gain stability in both inverting and non-inverting configurations. No external compensation components are required. This is confirmed in the datasheet description stating "stable at all gains" and verified by the unity-gain bandwidth of 70 MHz. Stability holds across the full temperature range (0°C to 70°C for C-suffix) and supply range (±4.5 V to ±16 V).
What is the input common-mode voltage range of THS4051CDR?
At ±15 V supply, THS4051CDR has a common-mode input voltage range of ±13.8 V to ±14.3 V - extending within 1.2 V of either rail. At ±5 V supply, the range is ±3.8 V to ±4.3 V. This rail-to-rail input capability allows direct interfacing with DAC outputs, sensor bridges, and other mid-rail biased sources without level-shifting circuitry.
Does THS4051CDR require external nulling or offset trimming?
No, THS4051CDR does not require external nulling or offset trimming. Its input offset voltage is specified at 2.5–10 mV (typ/max at 25°C), and pins 1 and 8 are labeled NULL (no internal connection), confirming no offset adjustment terminals. For applications requiring sub-mV offset, external calibration or post-amplifier correction is recommended - the device itself provides no trim capability.
THS4051CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 240V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 70 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 8.5mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
THS4051CDR FAQ
1.How can I place an order for THS4051CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051CDR 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 THS4051CDR reliable?
The price and inventory of THS4051CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051CDR is usually 5 days.
3.What payment methods are accepted for THS4051CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051CDR?
THS4051CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051CDR 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 THS4051CDR?
For technical support, including THS4051CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051CDR requirements.
6.How does Aetrix verify that THS4051CDR is sourced from the original manufacturer or authorized distributors?
All THS4051CDR 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 THS4051CDR meets industry standards.
7.What is the process for return or replacement of THS4051CDR?
All THS4051CDR units undergo pre-shipment inspection (PSI). If there is an issue with THS4051CDR, 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 THS4051CDR part is unused and in its original packaging.
Return procedure for THS4051CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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