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Texas Instruments TLV9151IDCKR
- Part No.:
- TLV9151IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9151IDCKR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,347
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Product details
Overview
TLV9151IDCKR from Texas Instruments is a single-channel, rail-to-rail input/output precision operational amplifier optimized for low-noise, low-offset signal conditioning in industrial and test equipment. It delivers 4.5-MHz gain-bandwidth, ±125 µV max offset voltage, 10.5 nV/√Hz input voltage noise at 1 kHz, ±75 mA output drive, and operates from 2.7 V to 16 V supply. It is used in high-side current sensing and professional microphone front-ends.
For engineers reviewing the TLV9151IDCKR datasheet, TLV9151IDCKR pinout, TLV9151IDCKR application, or TLV9151IDCKR equivalent, key selection criteria include its 0.3 µV/°C offset drift, robust EMIRR filtering, shutdown capability (30 µA quiescent in disable mode), and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TLV9151IDCKR employs a precision bipolar-input architecture enabling rail-to-rail common-mode input range (V– – 0.1 V to V+ + 0.1 V) and differential input voltage up to VS + 0.2 V. Its 20 V/µs slew rate and 2.5 µs 0.01% settling time support fast transient response in multiplexed data-acquisition systems.
It integrates EMI/RFI filters on both input pins, achieving >60 dB EMIRR rejection at 900 MHz, and features internal protection diodes limiting input current to ±10 mA beyond rails. Shutdown control (SHDN pin) enables low-power operation with 8 µs enable time and 3 µs disable time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 4.5 MHz - supports stable unity-gain and moderate closed-loop bandwidths up to ~3.5 MHz with phase margin ≥60° |
| Input offset voltage | ±125 µV (max) - enables accurate DC-coupled amplification without external trimming in sensor interfaces |
| Offset voltage drift | ±0.3 µV/°C - ensures <1.5 µV total drift over –40°C to 125°C operating range |
| Input voltage noise | 10.5 nV/√Hz at 1 kHz - suitable for low-level audio and precision instrumentation signal chains |
| Supply voltage range | 2.7 V to 16 V (±1.35 V to ±8 V) - compatible with single-supply 3.3 V/5 V and dual-supply ±5 V/±12 V systems |
| Output drive current | ±75 mA - drives low-impedance loads including 2-kΩ resistive terminations and 1000-pF capacitive loads |
| Quiescent current | 560 µA per amplifier - enables battery-powered or energy-sensitive designs with minimal power overhead |
Pinout & Package
TLV9151IDCKR is packaged in a 5-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, with exposed pad option not supported. Thermal resistance RθJA is 202.6°C/W, requiring moderate copper pour for thermal management in continuous high-output-current operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting input | Accepts signals from V– – 0.1 V to V+ + 0.1 V; high-impedance (6 TΩ || 1 pF) node for sensor or reference connections |
| V– (Pin 2) | Negative supply | Reference return for biasing and output swing; must be connected to lowest system potential or ground in single-supply use |
| –IN (Pin 3) | Inverting input | Differential pair input with matched impedance to +IN; used for feedback network connection in standard op-amp configurations |
| OUT (Pin 4) | Amplifier output | Rail-to-rail capable: swings within 5 mV of rails under no-load, 50 mV under 10-kΩ load at 16 V supply |
| V+ (Pin 5) | Positive supply | Highest system voltage rail; supplies internal bias and output stage; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage (2.7 V) and high-voltage (16 V) systems without level-shifting circuitry |
| EMI/RFI filtered inputs | Integrated input-stage filtering provides >60 dB rejection at 900 MHz, reducing susceptibility to cellular and ISM-band interference |
| Shutdown control | Active-low SHDN pin reduces quiescent current to 30 µA, supporting power-gating in multi-amplifier systems |
| High CMRR (120 dB) | Maintains accuracy in noisy industrial environments where common-mode transients exceed 1 V peak |
| Low input bias current (±10 pA) | Minimizes voltage error across high-impedance source impedances (>1 MΩ), critical for piezoelectric and photodiode interfaces |
Applications
| Professional Microphone Preamp | Multiplexed Data Acquisition |
|---|---|
Use Scenario: Low-noise preamplification of condenser microphone capsules in wireless audio transmitters. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input, configured as noninverting amplifier with gain = 100 V/V. Use Value: 10.5 nV/√Hz noise floor preserves SNR above 95 dB(A); rail-to-rail output drives ADC input directly at 3.3 V supply. | Use Scenario: Signal conditioning channel in 16-channel analog input module for PLC analog I/O cards. IC Role / Device Role / Timing Role: Buffer and anti-alias filter driver preceding SAR ADC sampling at 1 MSPS. Use Value: 2.5 µs 0.01% settling time ensures full accuracy during multiplexer channel switching; ±75 mA drive handles 2-kΩ RC filter loads. |
| High-Side Current Sensing | Test & Measurement Front-End |
Use Scenario: Bidirectional current monitoring in 12-V automotive body control modules using shunt resistor. IC Role / Device Role / Timing Role: Difference amplifier with precision gain-setting resistors, referenced to high-side common-mode voltage. Use Value: Rail-to-rail input accepts common-mode voltages up to 12.1 V; ±0.3 µV/°C drift minimizes temperature-induced gain error over vehicle thermal range. | Use Scenario: Input buffer in handheld multimeter for AC/DC voltage and current measurement ranges. IC Role / Device Role / Timing Role: High-impedance, low-drift buffer isolating DMM input from internal scaling and digitization circuitry. Use Value: ±125 µV offset ensures sub-mV zero-error in 200-mV range; 120 dB CMRR rejects power-line interference during floating measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA391DBVR | Lower noise (4.7 nV/√Hz), higher GBW (10 MHz), but higher quiescent current (1.2 mA) and no shutdown | Better for ultra-low-noise audio or high-speed precision filtering; unsuitable where power gating is required | Select OPA391DBVR when noise performance dominates and shutdown is unnecessary |
| LMV721IDBVR | Higher offset (±250 µV), lower GBW (1.5 MHz), no EMI filtering, but lower cost and same SC70-5 footprint | Suitable for cost-sensitive, non-critical DC amplification where EMI immunity is not required | Select LMV721IDBVR only for non-industrial applications with relaxed DC accuracy and noise specs |
Compared with TLV9151IDCKR, OPA391DBVR trades higher power for superior noise and speed, while LMV721IDBVR sacrifices precision and EMI robustness for cost reduction-neither is pin-compatible, requiring layout revision.
Availability
TLV9151IDCKR is available at Aetrix Electronics and suitable for professional microphone preamps, multiplexed data-acquisition systems, and high-side current sensing requiring stable component supply across industrial temperature range (–40°C to 125°C).
Supply support for TLV9151IDCKR 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, embedded processing, and connectivity solutions with deep expertise in precision amplifiers and signal chain ICs.
The TLV915x family was designed specifically for industrial-grade signal conditioning-balancing low noise, low offset, rail-to-rail operation, and EMI resilience in compact packages for factory automation, test equipment, and sensor interfaces.
FAQ
What is the maximum supply voltage for TLV9151IDCKR?
The TLV9151IDCKR supports an absolute maximum supply voltage of 20 V (V+ – V–), with recommended operation from 2.7 V to 16 V. Operation at 16 V enables full ±75 mA output drive and optimal noise performance; exceeding 16 V risks permanent damage per Absolute Maximum Ratings.
Does TLV9151IDCKR have built-in EMI rejection?
Yes, TLV9151IDCKR integrates EMI/RFI filters on both input pins, delivering >60 dB electromagnetic interference rejection ratio (EMIRR) at 900 MHz. This is confirmed in Figure 6-41 of the SBOS986E datasheet and enables reliable operation in noisy industrial environments without external RF filtering.
What is the shutdown behavior of TLV9151IDCKR?
TLV9151IDCKR features an active-low shutdown pin (SHDN). When pulled low (≤0.8 V above V–), the amplifier operates normally; when pulled high (≥1.1 V above V–), it enters shutdown with quiescent current reduced to 30 µA. Enable/disable times are 8 µs and 3 µs respectively, as specified in Section 6.7 of the datasheet.
Can TLV9151IDCKR drive capacitive loads?
Yes, TLV9151IDCKR is specified to drive up to 1000 pF capacitive loads stably, as stated in the Electrical Characteristics table. Its phase margin remains ≥60° with 10-kΩ load and 20-pF capacitance, and small-signal step response shows no overshoot up to 1000 pF per Figure 6-27–6-28.
What is the input common-mode voltage range of TLV9151IDCKR?
The TLV9151IDCKR supports a rail-to-rail input common-mode voltage range from (V–) – 0.1 V to (V+) + 0.1 V, verified across the full –40°C to 125°C temperature range. This allows direct interfacing with sensors operating at system rail extremes, such as bridge outputs referenced to V+ or V–.
TLV9151IDCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 21V/µs
- Gain Bandwidth Product:
- 4.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 125 µV
- Current - Supply:
- 560µA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV9151IDCKR FAQ
1.How can I place an order for TLV9151IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9151IDCKR 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 TLV9151IDCKR reliable?
The price and inventory of TLV9151IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9151IDCKR is usually 5 days.
3.What payment methods are accepted for TLV9151IDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9151IDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9151IDCKR?
TLV9151IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9151IDCKR 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 TLV9151IDCKR?
For technical support, including TLV9151IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9151IDCKR requirements.
6.How does Aetrix verify that TLV9151IDCKR is sourced from the original manufacturer or authorized distributors?
All TLV9151IDCKR 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 TLV9151IDCKR meets industry standards.
7.What is the process for return or replacement of TLV9151IDCKR?
All TLV9151IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9151IDCKR, 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 TLV9151IDCKR part is unused and in its original packaging.
Return procedure for TLV9151IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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