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Texas Instruments TLV6742IDGKR
- Part No.:
- TLV6742IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV6742IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,929
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Product details
Overview
TLV6742IDGKR from Texas Instruments is a dual-channel, rail-to-rail output CMOS operational amplifier optimized for low-noise precision applications. It delivers 3.5 nV/√Hz input voltage noise, 10 MHz gain-bandwidth product, ±3 pA input bias current, and operates from 1.7 V to 5.5 V supply. It serves as a high-fidelity signal conditioner in transimpedance amplifier circuits and professional audio front-ends.
For engineers reviewing the TLV6742IDGKR datasheet, TLV6742IDGKR pinout, TLV6742IDGKR application, or TLV6742IDGKR equivalent, key selection criteria include its low broadband noise at 10 kHz, robust 71 dB EMIRR at 2.4 GHz, rail-to-rail output swing within 5 mV of rails (at 10 kΩ), unity-gain stability, and guaranteed operation across –40°C to 125°C.
Technical Context
The TLV6742IDGKR uses a CMOS input stage enabling ultra-low input bias current (±3 pA) and supports high-impedance sensor interfaces. Its fully differential input architecture achieves 87–110 dB common-mode rejection over 1.8–5.5 V supply range and maintains 107–140 dB open-loop gain across temperature and supply conditions.
Designed for single-supply operation down to 1.7 V, it features integrated RFI/EMI rejection filtering and no phase reversal under overdrive. The output stage provides stable drive into ≥20 pF capacitive loads without external compensation due to resistive open-loop output impedance (~165 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise density | 3.5 nV/√Hz at 10 kHz - enables high-resolution signal amplification in low-level sensor interfaces |
| Gain bandwidth | 10 MHz - supports fast settling (0.65 µs to 0.1%) and wideband signal conditioning up to ~1 MHz closed-loop |
| Input bias current | ±3 pA - preserves accuracy in >1 GΩ source impedance circuits like photodiode TIA stages |
| Supply range | 1.7 V to 5.5 V - allows direct interfacing with Li-ion, 1.8-V logic, and 5-V industrial buses |
| Offset drift | ±0.2 µV/°C - ensures <1.2 µV total offset shift over –40°C to 125°C, critical for uncalibrated systems |
| EMIRR | 71 dB at 2.4 GHz - suppresses RF interference from Wi-Fi/Bluetooth without external filters |
| Output swing | Within 5 mV of rails (RL = 10 kΩ) - maximizes dynamic range in low-voltage data acquisition |
| Quiescent current | 990 µA per channel - balances performance and power in battery-powered wearables and portable test gear |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 4.40 mm body, 0.65 mm pitch, exposed thermal pad connected to V–.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - rail-to-rail capable, drives 10 kΩ load to within 5 mV of supply rails |
| 2 | IN1– | Inverting input, Channel 1 - CMOS input with ±3 pA bias current, supports high-Z feedback networks |
| 3 | IN1+ | Noninverting input, Channel 1 - matched to IN1– for <1.2 mV max offset and low CMRR error |
| 4 | V– | Negative supply or ground - thermal pad must be soldered to PCB ground plane for thermal management |
| 5 | IN2+ | Noninverting input, Channel 2 - electrically isolated from Channel 1; enables dual-sensor signal paths |
| 6 | IN2– | Inverting input, Channel 2 - independent bias current path; no crosstalk with Channel 1 inputs |
| 7 | OUT2 | Amplifier 2 output - identical AC/DC specs to OUT1; supports stereo or differential pair configurations |
| 8 | V+ | Positive supply - accepts 1.7–5.5 V; internal regulation ensures stable biasing across voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings to within 5 mV of V+ and V– at 10 kΩ load - preserves full ADC input range in 1.8-V systems |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in gain-of-1 buffers |
| RFI/EMI rejection filter | Integrated input-stage filtering - eliminates need for external ferrite beads in noisy industrial environments |
| No phase reversal | Maintains correct polarity during input overdrive - prevents latch-up or control loop instability |
| ESD protection | 2-kV HBM - withstands handling in standard assembly lines without special ESD controls |
| Capacitive load drive | Stable with ≥20 pF - directly drives ADC input capacitors or long PCB traces without oscillation |
Applications
| Transimpedance Amplifier Circuit | Solid State Drive |
|---|---|
Use Scenario: Amplifying low-current signals from photodiodes or current-output sensors in optical sensing modules. IC Role / Device Role / Timing Role: Dual-channel TLV6742IDGKR configures one op-amp as transimpedance amplifier and the other as active filter or buffer. Use Value: ±3 pA input bias current minimizes dark-current error; 3.5 nV/√Hz noise preserves SNR in sub-nA photocurrent detection. | Use Scenario: Signal conditioning for NAND flash interface, voltage monitoring, and thermal sensor amplification in SSD controller boards. IC Role / Device Role / Timing Role: Precision op-amp providing rail-to-rail analog front-end for 1.2-V/1.8-V supply rails and temperature-compensated biasing. Use Value: 1.7-V minimum supply enables direct connection to SSD core logic; 125°C rating matches NAND thermal envelope. |
| Professional Audio Amplifier | Pressure Transmitter |
Use Scenario: Low-noise preamplification and tone control in rack-mount audio mixing consoles and digital audio workstations. IC Role / Device Role / Timing Role: Dual op-amp implements stereo microphone preamp (Channel 1) and line-level driver (Channel 2) with shared power domain. Use Value: 71 dB EMIRR rejects RF ingress from nearby wireless gear; THD+N < 0.00015% ensures studio-grade fidelity. | Use Scenario: Amplifying millivolt-level outputs from piezoresistive or MEMS pressure sensors in industrial process control transmitters. IC Role / Device Role / Timing Role: Instrumentation-grade amplifier with matched input pairs rejecting common-mode noise on long sensor cables. Use Value: ±0.2 µV/°C offset drift maintains calibration over ambient temperature swings; 10-MHz GBW supports fast step-response in closed-loop control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2376IDGKT | Lower noise (4.2 nV/√Hz), higher IQ (760 µA/ch), no EMIRR spec; SOIC-8 only | Better for ultra-low-power battery devices but lacks 2.4-GHz RF immunity | Choose when lowest power dominates over RF robustness and 10-MHz bandwidth suffices |
| ADA4625-2ARMZ | Higher GBW (18 MHz), lower noise (2.9 nV/√Hz), wider supply (4.5–36 V), larger SOIC-8 footprint | Supports higher-voltage industrial sensors but consumes 2.2 mA/ch and requires layout redesign | Choose for high-speed, high-voltage precision where TLV6742IDGKR's 1.7-V operation is unnecessary |
Compared with OPA2376IDGKT and ADA4625-2ARMZ, TLV6742IDGKR uniquely combines 1.7-V operation, 71-dB 2.4-GHz EMIRR, and VSSOP-8 compactness-making it optimal for space-constrained, RF-noisy, low-voltage instrumentation where both noise and supply flexibility are critical.
Availability
TLV6742IDGKR is available at Aetrix Electronics and suitable for solid state drive, pressure transmitter, professional audio amplifier, transimpedance amplifier circuit, and wearables requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLV6742IDGKR 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 op-amp design heritage and broad industrial qualification.
The TLV674x family was engineered for cost-sensitive, high-performance analog signal chains in portable and industrial equipment-emphasizing low noise, wide bandwidth, and robust RF immunity without sacrificing low-voltage operation.
FAQ
What is the minimum supply voltage for reliable operation of the TLV6742IDGKR?
The TLV6742IDGKR operates reliably from 1.7 V to 5.5 V. Operation between 1.7 V and 1.8 V is specified only for ambient temperatures from 0°C to 85°C. For full –40°C to 125°C operation, use ≥1.8 V supply. This makes TLV6742IDGKR compatible with single-cell Li-ion and 1.8-V logic domains while maintaining rail-to-rail output swing and 10-MHz bandwidth.
Does the TLV6742IDGKR have built-in EMI rejection, and how is it verified?
Yes, the TLV6742IDGKR features integrated RFI/EMI rejection filtering, delivering 71 dB electro-magnetic interference rejection ratio at 2.4 GHz. This is measured per industry-standard methods and documented in the Electrical Characteristics table (Section 7.6). No external components are needed to achieve this level of RF immunity-critical for designs near Wi-Fi, Bluetooth, or switching power supplies.
Can the TLV6742IDGKR drive capacitive loads without oscillation?
Yes, the TLV6742IDGKR is designed to drive ≥20 pF capacitive loads stably without external compensation, thanks to its resistive open-loop output impedance (~165 Ω). This capability is confirmed in Figure 7-58 of the datasheet and enables direct connection to ADC input capacitors, long PCB traces, or LCD bias networks without risk of peaking or oscillation.
What is the input offset voltage specification for TLV6742IDGKR across temperature?
The TLV6742IDGKR has a maximum input offset voltage of ±1.2 mV over the full –40°C to 125°C operating range. At 25°C, typical offset is ±0.15 mV, with drift limited to ±0.2 µV/°C. These values are validated per JEDEC JESD22-A114 and ensure predictable DC accuracy in uncalibrated sensor interfaces and industrial control loops.
Is the TLV6742IDGKR pin-compatible with other dual op-amps in VSSOP-8 packaging?
No-TLV6742IDGKR follows TI's standard dual-op-amp VSSOP-8 pinout (IN1–, IN1+, V–, IN2+, IN2–, OUT2, OUT1, V+), but it is not pin-compatible with legacy parts like LMV722 or OPA2340 due to differing input/output assignments. Always verify pin functions using Table 6-2 in the TLV6742 datasheet before board reuse.
TLV6742IDGKR 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:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 990µA (x2 Channels)
- Current - Output / Channel:
- 68 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV6742IDGKR FAQ
1.How can I place an order for TLV6742IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV6742IDGKR 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 TLV6742IDGKR reliable?
The price and inventory of TLV6742IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV6742IDGKR is usually 5 days.
3.What payment methods are accepted for TLV6742IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV6742IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV6742IDGKR?
TLV6742IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV6742IDGKR 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 TLV6742IDGKR?
For technical support, including TLV6742IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV6742IDGKR requirements.
6.How does Aetrix verify that TLV6742IDGKR is sourced from the original manufacturer or authorized distributors?
All TLV6742IDGKR 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 TLV6742IDGKR meets industry standards.
7.What is the process for return or replacement of TLV6742IDGKR?
All TLV6742IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV6742IDGKR, 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 TLV6742IDGKR part is unused and in its original packaging.
Return procedure for TLV6742IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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