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Texas Instruments TLV2369IDGKT
- Part No.:
- TLV2369IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2369IDGKT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
TLV2369IDGKT from Texas Instruments is a dual, rail-to-rail input/output operational amplifier optimized for ultra-low-power sensor signal conditioning in battery-powered medical and portable instrumentation. It delivers 800 nA typical quiescent current per channel, 400 µV typical input offset voltage, and zero-crossover distortion across the full 1.8-V to 5.5-V supply range - enabling accurate amplification of microvolt-level signals in blood glucose meters and handheld test equipment.
For engineers reviewing the TLV2369IDGKT datasheet, TLV2369IDGKT pinout, TLV2369IDGKT application, or TLV2369IDGKT equivalent, this page provides verified specifications, VSSOP-8 package layout guidance, real-world use cases in battery monitoring and window comparators, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2369IDGKT implements a zero-crossover distortion architecture that eliminates the input-stage transition region found in conventional rail-to-rail amplifiers, ensuring monotonic linearity from V– to V+ without distortion spikes. Its complementary input stage operates continuously across the entire common-mode range, supported by a low-noise charge-pump bias circuit.
This architecture enables true rail-to-rail input and output swing (within 25 mV of rails at 10-kΩ load), 12-kHz gain-bandwidth product, and 0.5 µV/°C typical offset drift - all while maintaining 10 pA typical input bias current and 80–110 dB CMRR over frequency. The device functions as a single-supply precision gain block or comparator front-end in systems where power budget and DC accuracy are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - supports direct operation from single-cell Li-ion (3.0 V), coin cell (1.8–3.0 V), or 3.3-V/5-V system rails without LDOs. |
| Quiescent Current | 800 nA/ch (typ) - enables >10-year battery life in always-on sensor nodes powered by CR2032 cells. |
| Input Offset Voltage | 400 µV (typ), 2 mV (max) - ensures ≤0.1% gain error in 100-mV full-scale biomedical sensor interfaces. |
| Gain-Bandwidth Product | 12 kHz - sufficient for DC–100-Hz biosignal amplification (ECG, glucose meter transducer outputs) with stable unity-gain configuration. |
| Input Bias Current | 10 pA (typ) - minimizes voltage error across high-impedance pH or ion-selective electrodes (>100 MΩ source impedance). |
| CMRR | 80–110 dB - rejects common-mode noise from shared ground paths in multi-sensor PCB layouts. |
| Output Swing | Within 25 mV of rails (RL = 10 kΩ) - preserves dynamic range when interfacing to 12-bit SAR ADCs with 0–VDD input range. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65-mm lead pitch, exposed thermal pad (not electrically connected), RoHS-compliant NiPdAu finish, MSL Level-2-260°C-1 year.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Drives external load or ADC input; rail-to-rail swing supports full-scale utilization of low-voltage ADC references. |
| 2 - IN– A | Inverting input, Channel A | Accepts feedback network; high-impedance node requiring guard ring routing to prevent leakage-induced offset drift. |
| 3 - IN+ A | Noninverting input, Channel A | Connects to sensor or reference; 10 pA bias current allows direct interface to high-Z transducers without error-amplifying resistors. |
| 4 - V– | Negative supply / ground | Reference for both channels; must be low-impedance; shared with analog ground plane to minimize PSRR degradation. |
| 5 - IN+ B | Noninverting input, Channel B | Independent input for second sensor path or reference buffer; electrically isolated from Channel A except via shared supplies. |
| 6 - IN– B | Inverting input, Channel B | Used for differential sensing or window comparator thresholds; matched offset and drift with Channel A enable ratiometric designs. |
| 7 - OUT B | Amplifier B output | Provides second independent gain stage; can drive LED drivers or logic-level comparators without external buffers. |
| 8 - V+ | Positive supply | Accepts 1.8–5.5 V; requires 0.1-µF ceramic bypass capacitor placed <1 mm from pin to suppress supply-induced noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-crossover distortion architecture | Eliminates nonlinearity artifacts at rail transitions, enabling accurate DC-coupled amplification of bipolar sensor signals (e.g., thermopile outputs) without post-processing correction. |
| Rail-to-rail input and output | Supports full utilization of 1.8-V supply headroom - critical for maximizing SNR in low-voltage, high-resolution data acquisition systems. |
| 800-nA per-channel quiescent current | Reduces self-heating to <0.1°C in sealed enclosures, preserving offset stability in temperature-sensitive medical calibrations. |
| 0.5 µV/°C typical offset drift | Limits total offset shift to <45 µV over –40°C to +85°C operating range - suitable for Class II medical device specifications. |
| 10 pA typical input bias current | Enables direct connection to glass pH electrodes or electrochemical sensors without guard-driven buffers or T-network compensation. |
Applications
| Blood Glucose Meter Front-End | Battery Voltage Monitor |
|---|---|
Use Scenario: Amplifies weak current from glucose oxidase enzyme reaction on test strip, converting nanoamp-level currents into measurable voltage for 12-bit ADC digitization. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with programmable gain; operates continuously during 5-second measurement cycle. Use Value: 400 µV offset and 0.5 µV/°C drift ensure <±2 mg/dL glucose concentration error across clinical temperature range (15–40°C). | Use Scenario: Compares battery voltage against 2.0-V threshold using internal reference; asserts low-power alert when cell drops below safe operating level. IC Role / Device Role / Timing Role: Dual-comparator front-end: one channel for upper threshold, one for hysteresis control; draws <1.6 µA total. Use Value: 800-nA/channel quiescent current extends CR2032 shelf life beyond 3 years in standby mode while maintaining 50-mV hysteresis. |
| Portable Multimeter Input Stage | Low-Power Window Comparator |
Use Scenario: Buffers high-impedance DMM input (10 MΩ || 100 pF) before attenuation and ADC sampling, minimizing loading error on unknown sources. IC Role / Device Role / Timing Role: Unity-gain voltage follower; operates from 3.3-V rail with rail-to-rail input to measure 0–3.3-V ranges without clipping. Use Value: 10 pA input bias current limits voltage error to <33 µV at 10-MΩ source impedance - meeting CAT II 600-V safety standard accuracy requirements. | Use Scenario: Detects if sensor output resides within defined safe band (e.g., 1.2–1.8 V); drives fault indicator only when violation occurs. IC Role / Device Role / Timing Role: Dual op-amp configured as high/low threshold comparators with discrete diode OR logic on outputs. Use Value: Zero-crossover distortion prevents false triggers near band edges; 12-kHz GBW ensures <100-µs response to fast transients in industrial sensor loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision nanopower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2469IDGKT | Higher quiescent current (1.3 µA/ch), higher offset (600 µV typ), but 2× GBP (24 kHz) and improved output drive (±5 mA) | Better suited for driving capacitive loads >100 pF or higher-speed sensor interfaces requiring faster settling | Select TLV2469IDGKT when bandwidth >12 kHz or output current >1 mA is required; not drop-in due to higher IQ and different AC performance. |
| LPV821DRXT | Lower IQ (650 nA/ch), lower offset (100 µV typ), but narrower supply range (1.6–5.5 V) and no zero-crossover architecture | Superior DC precision for static measurements, but may introduce crossover distortion in rail-to-rail input applications | Choose LPV821DRXT for ultra-low-offset DC applications where input common-mode range stays >100 mV from rails; verify linearity at rail extremes. |
Compared with TLV2369IDGKT, TLV2469IDGKT trades nanopower efficiency for speed and drive strength, while LPV821DRXT improves DC accuracy at the cost of rail-to-rail linearity assurance - making TLV2369IDGKT the optimal balance for battery-powered medical sensors demanding both low power and distortion-free amplification.
Availability
TLV2369IDGKT is available at Aetrix Electronics and suitable for blood glucose meters, portable test equipment, and low-power sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for TLV2369IDGKT 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 company designing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and personal electronics markets.
The TLV2369IDGKT belongs to TI's nanopower precision op-amp product line, engineered specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated medical, environmental, and portable instrumentation.
FAQ
What is the maximum operating temperature range for TLV2369IDGKT?
The TLV2369IDGKT is specified for continuous operation from –40°C to +125°C ambient temperature, with electrical characteristics guaranteed over –40°C to +85°C. Its thermal resistance (RθJA = 168.5°C/W for VSSOP-8) allows safe operation at full rating in compact PCB layouts with moderate airflow, making it suitable for sealed medical enclosures and automotive under-hood sensor modules where thermal derating is critical.
Does TLV2369IDGKT support true rail-to-rail input with zero-crossover distortion?
Yes, TLV2369IDGKT uses a proprietary zero-crossover distortion architecture that eliminates the nonlinear transition region present in standard rail-to-rail op-amps. This enables monotonic input behavior from V– to V+, verified by normalized offset voltage vs. common-mode voltage plots showing <±100 µV variation across the full 0–5.2-V range at 5-V supply - essential for accurate amplification of bipolar sensor outputs without post-calibration.
Can TLV2369IDGKT drive capacitive loads directly?
TLV2369IDGKT exhibits stable operation with capacitive loads up to 100 pF, as confirmed by small-signal overshoot vs. capacitive load curves showing <5% overshoot at CL = 100 pF. For loads >100 pF, a series isolation resistor (≥100 Ω) is recommended between output and capacitance to maintain phase margin; the device does not include internal compensation for heavy capacitive loading.
What is the input bias current specification for TLV2369IDGKT over temperature?
TLV2369IDGKT specifies 10 pA typical input bias current at 25°C, with values remaining below 100 pA across the full –40°C to +85°C operating range, as shown in Figure 8 of the datasheet. This ultra-low bias enables direct interface to high-impedance sources like pH electrodes and piezoresistive sensors without significant voltage error, even at elevated temperatures where leakage typically increases.
Is TLV2369IDGKT pin-compatible with other dual op-amps in VSSOP-8 packages?
No, TLV2369IDGKT has a nonstandard pinout: OUT A (pin 1), IN– A (pin 2), IN+ A (pin 3), V– (pin 4), IN+ B (pin 5), IN– B (pin 6), OUT B (pin 7), V+ (pin 8). It is not pin-compatible with industry-standard dual op-amps such as LMV358 or TLV2372. PCB layout must follow the DGK package map in Section 5 of SBOS757 to avoid functional failure.
TLV2369IDGKT 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:
- 0.005V/µs
- Gain Bandwidth Product:
- 12 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 800nA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV2369IDGKT FAQ
1.How can I place an order for TLV2369IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2369IDGKT 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 TLV2369IDGKT reliable?
The price and inventory of TLV2369IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2369IDGKT is usually 5 days.
3.What payment methods are accepted for TLV2369IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2369IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2369IDGKT?
TLV2369IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2369IDGKT 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 TLV2369IDGKT?
For technical support, including TLV2369IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2369IDGKT requirements.
6.How does Aetrix verify that TLV2369IDGKT is sourced from the original manufacturer or authorized distributors?
All TLV2369IDGKT 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 TLV2369IDGKT meets industry standards.
7.What is the process for return or replacement of TLV2369IDGKT?
All TLV2369IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2369IDGKT, 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 TLV2369IDGKT part is unused and in its original packaging.
Return procedure for TLV2369IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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