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Texas Instruments LPV358MM
- Part No.:
- LPV358MM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LPV358MM.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,164
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Product details
Overview
LPV358MM from Texas Instruments is a dual-channel, rail-to-rail output, micropower operational amplifier optimized for low-voltage (2.7 V to 5 V), battery-powered applications. It delivers 152 kHz gain-bandwidth product, 15 µA total supply current (7.5 µA per channel), and rail-to-rail output swing (V+ −3.5 mV / V− +90 mV at 100 kΩ load) in an 8-pin VSSOP package. It is used in portable sensor signal conditioning and low-power active filters.
For engineers reviewing the LPV358MM datasheet, LPV358MM pinout, LPV358MM application, or LPV358MM equivalent, key selection criteria include micropower consumption under 20 µA, rail-to-rail output capability at 2.7 V, input common-mode range extending to ground, industrial temperature support (−40°C to 85°C), and SOIC/VSSOP package compatibility for space-constrained PCB layouts.
Technical Context
The LPV358MM employs a bipolar input stage and BiCMOS process to achieve low input bias current (2 nA typ. at 5 V), high output drive (±16 mA short-circuit current), and excellent noise performance (146 nV/√Hz at 1 kHz). Its rail-to-rail output architecture enables full dynamic range utilization in single-supply systems down to 2.7 V.
It operates in both single-supply (2.7 V to 5 V) and split-supply (±1.35 V to ±2.5 V) configurations. Input common-mode voltage spans −0.2 V to V+ − 0.8 V, allowing ground-referenced sensing. The device drives up to 200 pF capacitive load directly in unity-gain configuration without oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - supports full operation across entire Li-ion battery discharge curve (3.6 V → 2.7 V). |
| Total Supply Current | 15 µA typ. at 5 V - enables multi-year battery life in always-on sensor nodes. |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC–10 kHz signal conditioning in medical wearables and environmental sensors. |
| Rail-to-Rail Output Swing | V+ −3.5 mV / V− +90 mV at 100 kΩ - maximizes usable output voltage range in 3.3 V systems. |
| Input Common-Mode Range | −0.2 V to V+ − 0.8 V - allows direct interfacing with ground-referenced transducers and ADCs. |
| Input Offset Voltage | 1.5 mV max at 5 V - ensures <0.05% error in 3.3 V full-scale precision measurement paths. |
| Slew Rate | 0.1 V/µs - adequate for low-frequency instrumentation and filtering without distortion. |
Pinout & Package
LPV358MM is packaged in an 8-pin VSSOP (DGK) with body size 3.00 mm × 3.00 mm, optimized for compact PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Output of amplifier channel A - rail-to-rail capable, drives 100 kΩ load to within 3.5 mV of V+. |
| 2 | IN− A | Inverting input of channel A - matched with IN+ A for precision differential gain configuration. |
| 3 | IN+ A | Noninverting input of channel A - accepts signals down to −0.2 V, enabling true ground-sensing. |
| 4 | V− | Negative supply rail - connects to GND in single-supply operation; supports split-supply down to ±1.35 V. |
| 5 | IN+ B | Noninverting input of channel B - electrically isolated from channel A; identical specs and biasing. |
| 6 | IN− B | Inverting input of channel B - used with IN+ B for independent second signal path or feedback network. |
| 7 | OUT B | Output of amplifier channel B - fully independent output stage; no crosstalk above 60 dB @ 1 kHz. |
| 8 | V+ | Positive supply rail - supplies both channels; total current draw remains stable across 2.7–5 V range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >99.5% of full supply range at 100 kΩ load - eliminates need for level-shifting in 3.3 V ADC interfaces. |
| Micropower operation | 15 µA total supply current - reduces quiescent power to 45 µW at 3 V, critical for coin-cell-powered devices. |
| Ground-sensing input | Input common-mode extends to −0.2 V - enables direct connection to 0 V-referenced sensors (e.g., thermistors, RTDs). |
| Capacitive load tolerance | Stable with up to 200 pF in unity-gain follower - avoids external isolation resistors in LCD bias or DAC buffer designs. |
| Bipolar input stage | Low input voltage noise (146 nV/√Hz) and bias current (2 nA typ.) - improves SNR in high-impedance sensor front-ends. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level analog outputs from wearable ECG electrodes or pulse oximetry photodiodes. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one channel for AC-coupled biopotential amplification, second for DC-coupled reference or ambient light compensation. Use Value: Micropower consumption extends battery life beyond 6 months; rail-to-rail output ensures full ADC utilization without external biasing. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature or pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Dual op-amp performing I/V conversion and offset correction - first stage converts current to voltage, second removes sensor zero-error drift. Use Value: Input common-mode range including ground enables direct connection to loop-powered sensor outputs; low supply current minimizes loop burden. |
| Smart Home Environmental Sensing | Low-Power Active Filters |
|
Use Scenario: Conditioning analog outputs from CO₂, humidity, and VOC sensors in battery-operated air quality monitors. IC Role / Device Role / Timing Role: Dual op-amp implementing programmable gain and anti-aliasing filtering - one channel for sensor gain, second for low-pass filtering before ADC sampling. Use Value: 152 kHz GBWP supports filter cutoffs up to 10 kHz; rail-to-rail output preserves signal fidelity across full 3.3 V ADC range. |
Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters in portable audio accessories and sensor data loggers. IC Role / Device Role / Timing Role: Dual op-amp configured as unity-gain buffer + filter integrator - first stage isolates source impedance, second defines frequency response. Use Value: Direct 200 pF capacitive load drive eliminates external damping components; micropower operation maintains system energy budget. |
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 |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (250 µA/channel), higher GBWP (10 MHz), no rail-to-rail input - only output is RRO. | Better suited for higher-speed signal chains (>100 kHz); unsuitable for ground-sensing or sub-20 µA battery designs. | Select when bandwidth >1 MHz is required and power budget allows >500 µA total; avoid for micropower or true ground-referenced inputs. |
| TSV912IDT | Lower supply current (115 µA/channel), rail-to-rail input/output, higher VOS (1.5 mV typ.), smaller 8-pin SOIC package. | Compatible footprint but higher power; better input stage for high-Z sources; less suitable for ultra-low-power or precision DC apps. | Choose for cost-sensitive industrial controls where 115 µA is acceptable and rail-to-rail input is mandatory; not a drop-in replacement for LPV358MM's micropower profile. |
Compared with MCP6022-I/SN and TSV912IDT, LPV358MM uniquely balances sub-20 µA total supply current, rail-to-rail output, ground-sensing input, and 152 kHz bandwidth - making it the only viable option for multi-year battery life in compact, single-supply sensor nodes requiring full dynamic range utilization.
Availability
LPV358MM is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, smart home environmental sensing, and low-power active filters requiring stable component supply across extended production lifecycles.
Supply support for LPV358MM 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 over 50 years of innovation in precision amplifiers and low-power signal chain solutions.
The LPV358MM belongs to TI's LPV3xx-N micropower op-amp family, designed specifically for cost-sensitive, space-constrained, battery-powered applications demanding rail-to-rail output, ground-sensing input, and guaranteed 2.7 V operation.
FAQ
What is the maximum capacitive load the LPV358MM can drive without external compensation?
The LPV358MM can directly drive up to 200 pF in unity-gain follower configuration without oscillation or excessive overshoot. This is verified in the datasheet's stability section and typical characteristics (Figure 29–32). For loads exceeding 200 pF, TI recommends using resistive isolation (e.g., 10–100 Ω series resistor) or the feed-forward compensation circuit shown in Figure 39. The LPV358MM's internal compensation is optimized for this capacitive drive capability, eliminating the need for external components in most portable sensor and filter applications.
Does the LPV358MM support true single-supply operation with input signals at ground potential?
Yes, the LPV358MM supports true single-supply operation with input common-mode voltage extending to −0.2 V (below ground), as specified in Section 6.5 and 6.7 of the datasheet. This allows direct interfacing with ground-referenced sensors such as thermistors, bridge transducers, or current-sense resistors tied to system GND. The input stage is bipolar-based and does not require input bias current cancellation networks for basic DC-coupled configurations, simplifying design in LPV358MM-based signal chains.
What is the typical supply current of the LPV358MM at 3.3 V operation?
The LPV358MM's typical supply current is 15 µA at 5 V and remains stable across its 2.7–5 V operating range - meaning it draws approximately 15 µA at 3.3 V as well. This is confirmed in Section 6.5 (DC Characteristics at 2.7 V) and Section 6.7 (DC Characteristics at 5 V), where IS = 15 µA typ. for both conditions. The BiCMOS process ensures minimal variation in quiescent current versus supply voltage, making LPV358MM ideal for battery-powered systems where voltage declines during discharge.
Can the LPV358MM be used in a difference amplifier configuration?
Yes, the LPV358MM is routinely used in difference amplifier configurations, as demonstrated in Section 8.2.2 of the datasheet (Figure 43). Its matched input bias currents (typ. 2 nA), low input offset voltage (1.5 mV max), and rail-to-rail output enable accurate differential-to-single-ended conversion. When implemented with 1% metal-film resistors, the LPV358MM achieves >60 dB CMRR at DC and maintains stability up to 10 kHz - suitable for industrial sensor front-ends and precision measurement circuits where the LPV358MM serves as the core analog signal processor.
Is the LPV358MM pin-compatible with other dual op-amps in VSSOP-8 packages?
No, the LPV358MM is not universally pin-compatible with other dual op-amps in VSSOP-8. Its pinout (OUT A, IN− A, IN+ A, V−, IN+ B, IN− B, OUT B, V+) follows TI's standard dual-amplifier convention but differs from industry alternatives like the MCP6022 (which swaps IN+ B/IN− B positions) or LMV358 (which uses identical pinout but lacks guaranteed 2.7 V operation). Always verify pin mapping against the specific alternative's datasheet; LPV358MM's pinout is validated per TI's SNOS413E revision E, page 3.
LPV358MM 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:
- 152 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 15µA (x2 Channels)
- Current - Output / Channel:
- 16 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LPV358MM FAQ
1.How can I place an order for LPV358MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358MM 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 LPV358MM reliable?
The price and inventory of LPV358MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358MM is usually 5 days.
3.What payment methods are accepted for LPV358MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358MM?
LPV358MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358MM 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 LPV358MM?
For technical support, including LPV358MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358MM requirements.
6.How does Aetrix verify that LPV358MM is sourced from the original manufacturer or authorized distributors?
All LPV358MM 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 LPV358MM meets industry standards.
7.What is the process for return or replacement of LPV358MM?
All LPV358MM units undergo pre-shipment inspection (PSI). If there is an issue with LPV358MM, 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 LPV358MM part is unused and in its original packaging.
Return procedure for LPV358MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV358MM Tags
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