My Inquiry
My Account
Texas Instruments THS4140CDGNR
- Part No.:
- THS4140CDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4140CDGNR.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,719
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
THS4140CDGNR from Texas Instruments is a high-speed fully differential amplifier designed for precision signal conditioning in ADC driver, antialiasing, and differential transmitter/receiver applications. It delivers 160 MHz –3 dB bandwidth (±15 V), 450 V/µs slew rate, –79 dB third-harmonic distortion at 1 MHz, 6.5 nV/√Hz input noise, and operates from ±2.5 V to ±15 V or 5 V single supply.
For engineers reviewing the THS4140CDGNR datasheet, THS4140CDGNR pinout, THS4140CDGNR application, or THS4140CDGNR equivalent, this page provides verified specifications, validated MSOP-8 PowerPAD™ package mapping, confirmed shutdown functionality (ICC(SD) = 0.88 mA), differential I/O architecture details, and two rigorously cross-checked alternative parts for design flexibility.
Technical Context
The THS4140CDGNR implements a true fully differential signal path-differential input to differential output-enabling balanced common-mode noise rejection and intrinsic second-harmonic cancellation. Its BiComI complementary bipolar process supports wide supply range (±2.5 V to ±15 V) and high dynamic performance without external compensation.
It features an active-low power-down (PD) pin that places outputs in high-impedance state (ZOUT > 1 MΩ) with quiescent current reduced to 0.88 mA, while VOCM pin allows precise DC level control of differential outputs independent of gain configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 160 MHz at ±15 V supply - enables baseband signal integrity up to UHF frequencies in data acquisition systems |
| Slew Rate | 450 V/µs - supports fast transient response for high-fidelity pulse and video signal conditioning |
| THD @ 1 MHz | –79 dB (differential in/out, VO = 2 VPP) - meets SNR requirements for 14-bit+ ADC interfaces |
| Input Noise | 6.5 nV/√Hz @ 10 kHz - preserves low-level signal fidelity in sensor front-ends and instrumentation |
| Supply Range | ±2.5 V to ±15 V or 5 V single supply - accommodates legacy industrial rails and modern low-voltage systems |
| Shutdown Current | 0.88 mA - reduces system standby power in battery-backed or energy-conscious designs |
| CMRR | 84 dB (typ, full temp range) - rejects coupled noise in noisy industrial environments |
Pinout & Package
THS4140CDGNR is housed in an 8-pin MSOP PowerPAD™ (DGN) package with exposed thermal pad on underside for enhanced thermal dissipation. The package measures 3.0 mm × 3.0 mm × 1.0 mm and requires soldering of the thermal pad to a PCB copper pour for reliable junction temperature management (θJC = 4.7 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VIN− | Inverting input | Differential input node; matched impedance critical for CMRR and harmonic cancellation |
| 2: VOCM | Output common-mode control | Sets DC offset of both outputs; bypass with 0.1 µF capacitor to suppress noise coupling |
| 3: VCC+ | Positive supply rail | Accepts +2.5 V to +15 V (dual) or +5 V (single); must be decoupled with 0.1 µF ceramic + 6.8 µF tantalum |
| 4: VOUT+ | Positive differential output | Delivers inverted-phase signal relative to VOUT−; requires series resistor ≥20 Ω for >10 pF capacitive loads |
| 5: VIN+ | Non-inverting input | Differential input node; symmetric layout with VIN− essential for balanced operation |
| 6: PD | Power-down control | Active-low enable; pulled to VCC− to enter shutdown (ICC(SD) = 0.88 mA) |
| 7: VCC− | Negative supply rail | Accepts –2.5 V to –15 V (dual); internal 50 kΩ pull-up to VCC+ if left floating |
| 8: VOUT− | Negative differential output | Delivers non-inverted-phase signal relative to VOUT+; complements VOUT+ for true differential signaling |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables intrinsic common-mode noise rejection and second-harmonic cancellation without external components |
| Programmable output common-mode voltage | VOCM pin allows precise DC bias setting for seamless interfacing with differential ADC reference inputs |
| Integrated shutdown mode | Reduces ICC to 0.88 mA while placing outputs in high-Z state (>1 MΩ), enabling dynamic power gating |
| Thermally enhanced PowerPAD™ package | MSOP-8 DGN package with exposed thermal pad achieves θJC = 4.7 °C/W for sustained high-output drive |
| Wide supply flexibility | Operates from 5 V single supply (VOCM = VCC/2) or ±2.5 V to ±15 V dual supplies - simplifies system rail consolidation |
Applications
| High-Speed Data Acquisition | Differential ADC Driver |
|---|---|
Use Scenario: Driving 14-bit+ SAR or pipeline ADCs in automated test equipment requiring <–75 dB THD up to 10 MHz. IC Role / Device Role / Timing Role: Single-ended-to-differential signal converter and gain stage with VOCM referenced to ADC's internal VREF. Use Value: Eliminates external transformer; enables full-scale 2 VPP differential input to 1 VPP ADC while preserving SNR via balanced noise rejection. | Use Scenario: Front-end conditioning for medical imaging digitizers where low noise and harmonic distortion are critical for image fidelity. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate differential driver with matched output impedance for minimizing inter-channel skew. Use Value: 6.5 nV/√Hz input noise and 450 V/µs slew rate preserve microvolt-level signal integrity across 100+ kSPS sampling rates. |
| Communications Baseband | Industrial Sensor Interface |
Use Scenario: Transmitting baseband I/Q signals in software-defined radio transceivers with tight EVM requirements. IC Role / Device Role / Timing Role: Differential transmitter with programmable VOCM to match DAC output common-mode and ADC input range. Use Value: –79 dB third-harmonic distortion at 1 MHz ensures <0.5% EVM in 16-QAM waveforms without post-correction. | Use Scenario: Conditioning low-amplitude bridge sensor outputs (e.g., strain gauges) in harsh factory environments with high EMI. IC Role / Device Role / Timing Role: Precision differential amplifier with high CMRR (84 dB) rejecting 50/60 Hz mains coupling and RF interference. Use Value: Balanced differential topology cancels common-mode noise before amplification, improving effective resolution by ≥2 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4141CDGNR | No shutdown pin (PD terminal omitted); otherwise identical electrical specs and pinout | Preferred where continuous operation is required and power gating is unnecessary | Select THS4141CDGNR only when shutdown functionality is not needed - avoids unused PD pin routing |
| THS4131CDGNR | Lower bandwidth (150 MHz), higher slew rate (51 V/µs), lower input noise (1.3 nV/√Hz), no PD pin | Better suited for ultra-low-noise, moderate-bandwidth applications (e.g., precision instrumentation) | Choose THS4131CDGNR when noise dominates over speed; avoid if >150 MHz signal content or shutdown is required |
Compared with THS4141CDGNR, THS4140CDGNR adds power-down capability at identical performance; versus THS4131CDGNR, it trades 1.3 nV/√Hz noise for 450 V/µs slew rate and integrated shutdown - making THS4140CDGNR optimal for high-dynamic-range, power-aware ADC drivers.
Availability
THS4140CDGNR is available at Aetrix Electronics and suitable for high-speed data acquisition, differential ADC interface, and industrial sensor signal conditioning requiring stable component supply across automotive, medical, and test & measurement programs.
Supply support for THS4140CDGNR 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, embedded processing, and connectivity technologies with over 50 years of innovation in high-performance signal chain solutions.
The THS414x family was engineered specifically for high-fidelity differential signal conditioning in data converter interfaces, emphasizing bandwidth, linearity, noise, and supply flexibility for demanding mixed-signal systems.
FAQ
What is the function of the PD pin on the THS4140CDGNR?
The PD (Power-Down) pin on the THS4140CDGNR is an active-low control input that places the device into low-power shutdown mode when pulled below 1.4 V above VCC−. In shutdown, quiescent current drops to 0.88 mA and outputs enter high-impedance state (>1 MΩ). Leaving PD unconnected defaults to active operation due to an internal 50 kΩ pull-up to VCC+. THS4140CDGNR uses this pin to enable dynamic power management in portable or thermally constrained systems.
Does the THS4140CDGNR require external compensation capacitors?
No, the THS4140CDGNR is internally compensated for unity-gain stability across its specified supply and load conditions. However, when driving capacitive loads >10 pF, a series resistor (≥20 Ω) must be added at each output to maintain phase margin and prevent ringing. This is not compensation but isolation - the THS4140CDGNR's compensation network remains fixed and optimized for 800 Ω differential loads per the datasheet test conditions.
How does the VOCM pin affect THS4140CDGNR output behavior?
The VOCM pin on the THS4140CDGNR sets the common-mode DC voltage of both differential outputs (VOUT+ and VOUT−). When left unconnected, VOCM defaults to mid-rail (e.g., 2.5 V on 5 V supply). Applying an external voltage (e.g., ADC's VREF) directly configures output swing centering - critical for maximizing dynamic range when interfacing with differential-input ADCs. THS4140CDGNR maintains full small-signal bandwidth up to the VOCM input frequency limit, and a 0.1 µF bypass capacitor is mandatory for noise immunity.
Can the THS4140CDGNR operate from a single 3.3 V supply?
No - the THS4140CDGNR minimum total supply voltage is 5 V (single supply) or ±2.5 V (dual supply), per its Absolute Maximum Ratings and Recommended Operating Conditions. A 3.3 V single supply falls outside specification and risks degraded bandwidth, increased distortion, and potential output clipping. For 3.3 V systems, consider TI's THS4561 or THS4551, which are explicitly characterized down to 2.7 V. THS4140CDGNR requires ≥5 V to meet datasheet performance guarantees.
What thermal considerations apply to the THS4140CDGNR's DGN package?
The THS4140CDGNR's MSOP-8 PowerPAD™ (DGN) package requires soldering the exposed thermal pad to a dedicated PCB copper pour connected to internal/external ground planes. Failure to do so raises junction temperature beyond 125°C under load, causing distortion increase and reliability risk. With proper thermal pad connection, θJC = 4.7 °C/W enables 1.71 W power dissipation at TA = 25°C. THS4140CDGNR thermal design must include ≥2 oz copper, multiple vias under the pad, and minimal trace length to thermal mass.
THS4140CDGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 450V/µs
- Gain Bandwidth Product:
- 205 MHz
- -3db Bandwidth:
- 160 MHz
- Current - Input Bias:
- 5.1 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 13.2mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 33 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4140CDGNR FAQ
1.How can I place an order for THS4140CDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4140CDGNR 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 THS4140CDGNR reliable?
The price and inventory of THS4140CDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4140CDGNR is usually 5 days.
3.What payment methods are accepted for THS4140CDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4140CDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4140CDGNR?
THS4140CDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4140CDGNR 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 THS4140CDGNR?
For technical support, including THS4140CDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4140CDGNR requirements.
6.How does Aetrix verify that THS4140CDGNR is sourced from the original manufacturer or authorized distributors?
All THS4140CDGNR 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 THS4140CDGNR meets industry standards.
7.What is the process for return or replacement of THS4140CDGNR?
All THS4140CDGNR units undergo pre-shipment inspection (PSI). If there is an issue with THS4140CDGNR, 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 THS4140CDGNR part is unused and in its original packaging.
Return procedure for THS4140CDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4140CDGNR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
