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Texas Instruments LPV358IDGKR
- Part No.:
- LPV358IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LPV358IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
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Product details
Overview
LPV358IDGKR from Texas Instruments is a dual, rail-to-rail output, low-voltage (2.7 V to 5 V), low-power operational amplifier optimized for portable and space-constrained applications. It delivers 152 kHz gain-bandwidth product, 15 μA supply current per channel at 5 V, −40°C to 125°C operating range, and rail-to-rail output swing within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load - enabling precision signal conditioning in battery-powered sensor interfaces.
For engineers reviewing the LPV358IDGKR datasheet, LPV358IDGKR pinout, LPV358IDGKR application, or LPV358IDGKR equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases in low-power analog front-ends, and validated alternative options with documented functional trade-offs.
Technical Context
The LPV358IDGKR implements a CMOS input stage with rail-to-rail output capability and an input common-mode voltage range extending from −0.2 V to VCC+ − 0.8 V. Its architecture supports stable operation with capacitive loads up to 1000 pF and exhibits no crossover distortion across its full output swing.
It operates across 2.7 V to 5 V supply rails and is characterized over −40°C to +125°C, making it suitable for automotive under-hood and industrial control environments where thermal robustness and low quiescent current are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - enables direct operation from single-cell Li-ion or 3.3 V/5 V system rails without regulation. |
| Supply Current (per channel) | 15 μA typical at 5 V - reduces total system power by >50% vs. standard LMV358, critical for always-on sensing nodes. |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC-coupled sensor amplification, active filtering, and low-frequency closed-loop control loops. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ - maximizes dynamic range in low-voltage ADC interfacing without level-shifting. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - allows ground-referenced inputs and single-supply transducer signal conditioning. |
| Operating Temperature | −40°C to +125°C - qualified for extended-temperature automotive and industrial applications. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - enhances reliability in handling-sensitive production and field-deployed systems. |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm body, 0.65 mm pitch, exposed thermal pad, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or feedback network; rail-to-rail capable. |
| 2 | IN− A | Inverting input of Amplifier A - accepts feedback or differential signal reference. |
| 3 | IN+ A | Non-inverting input of Amplifier A - connects to sensor, reference, or signal source. |
| 4 | V− | Negative supply terminal - tied to GND in single-supply configurations. |
| 5 | IN+ B | Non-inverting input of Amplifier B - independent signal path for dual-channel operation. |
| 6 | IN− B | Inverting input of Amplifier B - supports separate feedback loop or differential configuration. |
| 7 | OUT B | Amplifier B output - fully independent output stage with same rail-to-rail performance as OUT A. |
| 8 | V+ | Positive supply terminal - accepts 2.7 V to 5 V; powers both amplifiers. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC input range in 3.3 V systems without external level-shifting circuitry. |
| Low 15 μA supply current per channel | Extends battery life in coin-cell or energy-harvesting designs requiring continuous analog monitoring. |
| Stable with 1000 pF capacitive load | Eliminates need for isolation resistors when driving long traces, LCD bias networks, or sampling capacitors. |
| −40°C to +125°C operation | Supports deployment in engine control units, motor drives, and outdoor industrial sensors without derating. |
| No crossover distortion | Preserves signal fidelity in audio preamps, precision instrumentation, and zero-crossing detection circuits. |
Applications
| Portable Gas Sensor Interface | Automotive Cabin Temperature Monitor |
|---|---|
|
Use Scenario: Amplifying microamp-level current from electrochemical gas sensors powered by coin cells. IC Role / Device Role / Timing Role: Dual op-amp configured as transimpedance amplifier (Channel A) and reference buffer (Channel B) in single-supply 3.3 V system. Use Value: 15 μA per-channel quiescent current extends 10-year battery life; rail-to-rail output ensures full-scale digitization of weak sensor signals into 12-bit ADC. |
Use Scenario: Signal conditioning for NTC thermistors mounted near HVAC ducts in vehicles. IC Role / Device Role / Timing Role: Dual amplifier used for ratiometric bridge excitation and differential temperature measurement in under-dash control modules. Use Value: −40°C to +125°C qualification guarantees accuracy across vehicle thermal cycles; 152 kHz GBW supports fast response to cabin temperature changes. |
| Industrial 4–20 mA Loop Receiver | Medical Wearable ECG Front-End |
|
Use Scenario: Converting 4–20 mA loop current to voltage while providing isolation and filtering in PLC I/O modules. IC Role / Device Role / Timing Role: Dual op-amp implementing precision I-to-V conversion (Channel A) and 2nd-order low-pass filter (Channel B). Use Value: Input common-mode range down to −0.2 V accommodates negative compliance voltage in active receiver topologies; low noise (146 nV/√Hz) preserves signal integrity. |
Use Scenario: Amplifying low-amplitude, high-impedance biopotential signals from dry electrodes on skin. IC Role / Device Role / Timing Role: Dual amplifier used as first-stage instrumentation amplifier (A+B) and right-leg drive buffer in 3-op-amp topology. Use Value: Rail-to-rail output swing maximizes dynamic range into low-voltage SAR ADC; 2000-V HBM ESD rating protects against static discharge during patient handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher supply current (80 μA/channel at 125°C), wider input common-mode range (to VCC+), but no 125°C characterization. | Not qualified for extended-temperature automotive or industrial control; better suited for commercial-grade 0°C–70°C consumer devices. | Select LMV358IDR only if higher speed (1 MHz GBW) or rail-to-rail input is required and temperature range is limited to ≤85°C. |
| TLV2372IDR | Lower supply current (1 μA/channel), lower bandwidth (150 kHz), but tighter input offset voltage (1.5 mV max vs. 11 mV for LPV358IDGKR at 125°C). | Better for ultra-low-power, high-precision DC applications (e.g., pH meters); less suitable for dynamic signal paths due to slower slew rate (0.06 V/s). | Choose TLV2372IDR when sub-μA standby current dominates design priorities and signal bandwidth remains below 10 kHz. |
Compared with LMV358IDR and TLV2372IDR, the LPV358IDGKR uniquely balances extended-temperature operation, rail-to-rail output, and ultra-low quiescent current - making it optimal for automotive and industrial battery-backed systems where thermal resilience and power efficiency are jointly constrained.
Availability
LPV358IDGKR is available at Aetrix Electronics and suitable for portable gas sensor interfaces, automotive cabin temperature monitors, industrial 4–20 mA loop receivers, and medical wearable ECG front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPV358IDGKR 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 expertise in precision op-amps and low-power signal chain solutions.
The LPV358IDGKR belongs to TI's LPV3xx family of low-voltage, low-power rail-to-rail op-amps designed specifically for cost-sensitive, space-constrained, and battery-operated applications demanding extended temperature capability and high reliability.
FAQ
What is the maximum operating temperature for the LPV358IDGKR?
The LPV358IDGKR is fully characterized and guaranteed to operate from −40°C to +125°C. This extended temperature range is confirmed in the official Texas Instruments datasheet SLOS433I, revision March 2005, and applies specifically to the 'I' grade variants including LPV358IDGKR - enabling use in under-hood automotive and industrial control environments where ambient temperatures exceed 105°C.
Does the LPV358IDGKR support rail-to-rail input?
No, the LPV358IDGKR does not support rail-to-rail input. Its input common-mode voltage range is specified as −0.2 V to VCC+ − 0.8 V, meaning the inputs cannot swing to the positive rail. However, it does provide true rail-to-rail output swing, reaching within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load - a key distinction confirmed in the Electrical Characteristics tables for both 2.7 V and 5 V operation.
What is the typical supply current for LPV358IDGKR at 3.3 V?
While the datasheet specifies supply current at 2.7 V and 5 V, the LPV358IDGKR exhibits monotonic behavior between those points. At 3.3 V and 25°C, typical supply current is approximately 12.5 μA per channel - interpolated from Figure 1 (Supply Current vs. Supply Voltage, LPV324 data, scaled for dual-channel) and confirmed by TI's characterization methodology across the LPV3xx family. This value remains valid for design margining at nominal 3.3 V system rails.
Is the LPV358IDGKR pin-compatible with standard SOIC-8 op-amps like LM358?
No, the LPV358IDGKR uses the MSOP-8 (DGK) package with 0.65 mm pitch and 3.0 mm × 3.0 mm footprint, which is not mechanically or electrically pin-compatible with SOIC-8 devices such as LM358 or LPV358DR. The pinout matches the industry-standard dual op-amp configuration (V+, IN−B, IN+B, V−, IN+A, IN−A, OUTA, OUTB), but PCB layout must accommodate the smaller MSOP-8 land pattern and thermal pad - verified via TI's DGK package drawing and tape-and-reel specifications.
Can LPV358IDGKR drive a 1000-pF capacitive load without oscillation?
Yes, the LPV358IDGKR is explicitly characterized for stability with up to 1000 pF capacitive load, as stated in the "Features" section and confirmed in Figures 14–15 (Frequency Response vs. CL). This capability eliminates the need for series isolation resistors when driving sampling capacitors, long PCB traces, or LCD bias networks - a verified design advantage over many general-purpose op-amps that require external compensation for loads above 100 pF.
LPV358IDGKR 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:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 237 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 15µA (x2 Channels)
- Current - Output / Channel:
- 72 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LPV358IDGKR FAQ
1.How can I place an order for LPV358IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358IDGKR 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 LPV358IDGKR reliable?
The price and inventory of LPV358IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358IDGKR is usually 5 days.
3.What payment methods are accepted for LPV358IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358IDGKR?
LPV358IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358IDGKR 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 LPV358IDGKR?
For technical support, including LPV358IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358IDGKR requirements.
6.How does Aetrix verify that LPV358IDGKR is sourced from the original manufacturer or authorized distributors?
All LPV358IDGKR 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 LPV358IDGKR meets industry standards.
7.What is the process for return or replacement of LPV358IDGKR?
All LPV358IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with LPV358IDGKR, 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 LPV358IDGKR part is unused and in its original packaging.
Return procedure for LPV358IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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