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Texas Instruments THS4150IDGN
- Part No.:
- THS4150IDGN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
THS4150IDGN.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,318
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Product details
Overview
THS4150IDGN from Texas Instruments is a high-speed fully differential amplifier optimized for ADC driving, antialias filtering, and differential signal conditioning in precision data acquisition systems. It delivers 150 MHz –3 dB bandwidth (±5 V supply), 650 V/µs slew rate (±15 V), –83 dB THD at 1 MHz, 7.6 nV/√Hz input noise, and supports ±2.5 V to ±15 V dual-supply or 5 V single-supply operation.
For engineers reviewing the THS4150IDGN datasheet, THS4150IDGN pinout, THS4150IDGN application, or THS4150IDGN equivalent, key selection criteria include differential output swing (±3.6 V at ±5 V), shutdown current (1.3 mA), VOCM-controlled common-mode level setting, and MSOP PowerPAD™ thermal performance with θJA = 58.4°C/W.
Technical Context
The THS4150IDGN implements a true fully differential signal path from input to output using TI's BiComI complementary bipolar process, enabling balanced rejection of common-mode noise and suppression of even-order harmonics. Its internal architecture supports both differential-input/differential-output and single-ended-input/differential-output configurations with gain set by external resistor ratios.
It features a dedicated VOCM pin for precise control of output common-mode voltage, critical for interfacing with differential ADCs; shutdown functionality reduces quiescent current to 1.3 mA while raising output impedance to 636 Ω, preserving system-level power management integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 150 MHz at ±5 V supply - enables wideband signal conditioning up to Nyquist frequencies of high-speed ADCs. |
| Slew Rate | 650 V/µs at ±15 V - supports fast transient response for large-signal step fidelity in imaging and instrumentation. |
| Total Harmonic Distortion | –83 dB at 1 MHz, ±5 V - ensures low distortion in precision analog front-ends feeding 14–16-bit ADCs. |
| Input Voltage Noise | 7.6 nV/√Hz above 10 kHz - minimizes added noise in medium-bandwidth sensor signal chains. |
| Supply Range | ±2.5 V to ±15 V dual or 5 V single - accommodates legacy industrial rails and modern low-voltage mixed-signal systems. |
| Shutdown Current | 1.3 mA at ±5 V - enables low-power idle states without compromising startup time (1.1 µs delay). |
| Output Swing | ±3.6 V at ±5 V supply into 800 Ω - delivers full-scale differential drive capability for 12-bit+ converters. |
Pinout & Package
THS4150IDGN is housed in an 8-pin MSOP PowerPAD™ package (DGN) with exposed thermal pad on underside, rated for θJA = 58.4°C/W and 1.71 W power dissipation at TA = 25°C. The PowerPAD must be soldered to a thermally conductive PCB plane for reliable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN− | Inverting input | Differential input node; requires matched external feedback network for gain stability and CMRR optimization. |
| VOCM | Common-mode output control | Sets DC level of both outputs; bypass with 0.1 µF capacitor to suppress noise coupling into output common mode. |
| VCC+ | Positive supply rail | Accepts +2.5 V to +15 V in dual-supply mode or +5 V in single-supply configuration. |
| VOUT+ | Positive differential output | Delivers inverted or non-inverted signal depending on configuration; requires series resistor ≥20 Ω for >10 pF capacitive loads. |
| VIN+ | Non-inverting input | Differential input node; symmetry with VIN− essential for second-harmonic cancellation and PSRR performance. |
| PD | Power-down control | Active-low shutdown pin; pulls output to high-impedance state (636 Ω) and reduces ICC to 1.3 mA. |
| VCC− | Negative supply rail | Accepts –2.5 V to –15 V in dual-supply mode; tied to GND in single-supply operation. |
| VOUT− | Negative differential output | Complementary output to VOUT+; balanced pair rejects common-mode interference in PCB routing and cabling. |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential I/O architecture | Enables true differential signaling end-to-end, rejecting coupled noise at input, output, and power supply nodes. |
| VOCM-controlled output common-mode | Allows direct interface to differential ADC reference inputs (e.g., ADS8xx series) without level-shifting circuitry. |
| MSOP PowerPAD™ thermal package | Provides 1.71 W power dissipation at 25°C ambient-critical for sustained high-speed operation in compact layouts. |
| Single-ended to differential conversion | Supports legacy single-ended sensors or DACs while delivering full dynamic range advantage of differential signaling. |
| Shutdown mode with fast recovery | Reduces supply current to 1.3 mA and enables <1.1 µs wake-up-ideal for burst-mode data acquisition systems. |
Applications
| High-Speed Data Acquisition | Differential ADC Driver |
|---|---|
Use Scenario: Driving the analog inputs of a 14-bit, 100 MSPS pipeline ADC in medical ultrasound beamforming. IC Role / Device Role / Timing Role: Fully differential amplifier configured as single-ended-to-differential converter with gain = 2 and VOCM tied to ADC reference. Use Value: Delivers –83 dB THD at 1 MHz and 150 MHz bandwidth to preserve SNR across full ADC input bandwidth without transformer coupling. | Use Scenario: Conditioning signals from a precision delta-sigma ADC's reference buffer in industrial process control. IC Role / Device Role / Timing Role: Differential-input/differential-output amplifier with matched Rf/Rg network for unity-gain buffering and common-mode rejection. Use Value: Achieves –83 dB THD and 7.6 nV/√Hz noise floor to maintain ENOB >15 bits over temperature and supply variation. |
| Antialias Filtering Interface | Instrumentation Signal Chain |
Use Scenario: Active antialias filter stage preceding a 16-bit SAR ADC in automated test equipment. IC Role / Device Role / Timing Role: Differential op-amp implementing 2nd-order low-pass topology with VOCM referenced to midrail. Use Value: Maintains phase margin and stability while driving 100 pF ADC input capacitance via 20 Ω series isolation resistors. | Use Scenario: Front-end gain stage for low-level thermocouple or strain gauge signals in portable diagnostic equipment. IC Role / Device Role / Timing Role: Single-supply (5 V) differential amplifier with VOCM = 2.5 V, rejecting EMI in unshielded cable runs. Use Value: Provides 150 MHz bandwidth and 650 V/µs slew rate to resolve fast transients while suppressing 50/60 Hz pickup via balanced topology. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4131CDGN | 150 MHz BW, 51 V/µs SR, 1.3 nV/√Hz noise - lower noise but slower slew rate. | Better for low-noise, medium-speed precision measurement; less suitable for fast transient capture. | Select THS4131CDGN when input-referred noise dominates system error budget over slew-limited settling. |
| THS4561IRGET | 1.8 GHz BW, 3500 V/µs SR, 1.6 nV/√Hz - higher speed, wider supply range (2.7–5.5 V), no shutdown pin. | Targeted at RF sampling and JESD204B interface; lacks PD control and dual-supply flexibility. | Choose THS4561IRGET for >500 MSPS ADC drivers where bandwidth and slew rate exceed THS4150IDGN capability. |
Compared with THS4131CDGN and THS4561IRGET, THS4150IDGN offers the optimal balance of bandwidth, slew rate, and dual-supply flexibility for general-purpose high-fidelity ADC driving-especially where shutdown control and ±15 V operation are required.
Availability
THS4150IDGN is available at Aetrix Electronics and suitable for high-speed data acquisition, differential ADC interfacing, and precision instrumentation requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for THS4150IDGN 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 digital signal technologies, with decades of expertise in high-performance amplifier design.
The THS415x family was engineered specifically for demanding differential signal conditioning tasks-including ADC driver, antialias filter, and transmitter/receiver applications-where linearity, speed, and noise performance are critical.
FAQ
What is the operating temperature range for THS4150IDGN?
The THS4150IDGN is specified for industrial temperature operation from –40°C to +85°C, denoted by the "I" suffix in the part number. This range ensures reliable performance in harsh environments such as factory automation, motor control, and outdoor instrumentation where thermal cycling and extended ambient conditions are typical. All electrical characteristics in the datasheet are guaranteed across this full range unless otherwise noted.
Does THS4150IDGN support single-supply operation?
Yes, THS4150IDGN supports true single-supply operation at 5 V. In this mode, VCC− is connected to ground, VCC+ receives +5 V, and the VOCM pin defaults to midrail (2.5 V) to establish proper output common-mode level. Input common-mode voltage must remain within VICR = VCC− + 1.5 V to VCC+ – 1.5 V (i.e., 1.5 V to 3.5 V), and output swing is specified as 1.2 V to 3.8 V per side under load.
How does the PD (power-down) pin function on THS4150IDGN?
The PD pin on THS4150IDGN is an active-low shutdown control. When pulled low, it disables the amplifier core, reducing quiescent current to 1.3 mA (at ±5 V) and raising output impedance to 636 Ω. Recovery time from shutdown is 1.1 µs, making THS4150IDGN suitable for power-gated signal chains in battery-powered or burst-mode systems. The pin must be driven with clean logic levels to avoid partial activation.
What is the recommended external resistor tolerance for THS4150IDGN feedback networks?
Texas Instruments recommends using 1% (or better) tolerance resistors for the Rf and Rg feedback network of THS4150IDGN. Mismatch degrades CMRR, PSRR, and second-harmonic cancellation-key advantages of the fully differential architecture. For example, 0.1% matched pairs further improve distortion performance at high frequencies, especially in gain = 1 or gain = 2 configurations used with high-resolution ADCs.
Can THS4150IDGN drive heavy capacitive loads directly?
No-THS4150IDGN should not drive capacitive loads >10 pF directly due to reduced phase margin that may cause ringing or oscillation. For loads exceeding this threshold, a minimum 20 Ω series resistor must be placed between each output (VOUT+, VOUT−) and the load. This isolates the amplifier from capacitive reactance while maintaining signal integrity, particularly in 50 Ω transmission-line applications where the resistor also provides source termination.
THS4150IDGN 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:
- 650V/µs
- Gain Bandwidth Product:
- 340 MHz
- -3db Bandwidth:
- 150 MHz
- Current - Input Bias:
- 4.3 µA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 17.5mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 33 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
THS4150IDGN FAQ
1.How can I place an order for THS4150IDGN through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4150IDGN 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 THS4150IDGN reliable?
The price and inventory of THS4150IDGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4150IDGN is usually 5 days.
3.What payment methods are accepted for THS4150IDGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4150IDGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4150IDGN?
THS4150IDGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4150IDGN 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 THS4150IDGN?
For technical support, including THS4150IDGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4150IDGN requirements.
6.How does Aetrix verify that THS4150IDGN is sourced from the original manufacturer or authorized distributors?
All THS4150IDGN 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 THS4150IDGN meets industry standards.
7.What is the process for return or replacement of THS4150IDGN?
All THS4150IDGN units undergo pre-shipment inspection (PSI). If there is an issue with THS4150IDGN, 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 THS4150IDGN part is unused and in its original packaging.
Return procedure for THS4150IDGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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