My Inquiry
My Account
Texas Instruments LM2904LVIDGKR
- Part No.:
- LM2904LVIDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM2904LVIDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,317
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2904LVIDGKR from Texas Instruments is a dual, low-voltage operational amplifier designed for cost-sensitive, single-supply systems operating from 2.7 V to 5.5 V. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 40 nV/√Hz input voltage noise density, 90 µA per-channel quiescent current, and rail-to-rail input common-mode range including ground - enabling precision signal conditioning in battery-powered environmental sensors and low-side current sensing.
For engineers reviewing the LM2904LVIDGKR datasheet, LM2904LVIDGKR pinout, LM2904LVIDGKR application, or LM2904LVIDGKR equivalent, this page provides verified package mapping (VSSOP-8), validated dual-channel op amp functionality, confirmed –40°C to 125°C operation, and real-world design meaning for key specs including output swing (40–75 mV from negative rail), PSRR (80–100 dB), and overload recovery time (1 µs).
Technical Context
The LM2904LVIDGKR uses a P-channel input differential pair with parallel N-channel stage to eliminate phase reversal during overdrive while maintaining rail-to-rail input capability down to the negative supply. Its internal biasing ensures stable unity-gain operation across 2.7 V–5.5 V supplies without external compensation.
Designed for single-supply use, it supports true ground-referenced inputs and delivers 1.5 V/µs slew rate with 75° phase margin at G = 1 and CL = 10 pF. ESD protection meets 2-kV HBM per ANSI/ESDA/JEDEC JS-001, and thermal resistance is 201.2°C/W (RθJA) in the DGK (VSSOP-8) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct integration into Li-ion, USB, and 3.3-V logic-powered systems without level-shifting. |
| Input Offset Voltage | ±1 mV (typ) - supports accurate DC-coupled amplification in sensor front-ends with ≤0.1% gain error at unity gain. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for anti-aliasing, active filtering, and closed-loop control up to ~100 kHz with phase margin ≥75°. |
| Quiescent Current | 90 µA per channel - allows dual-op-amp operation in always-on nodes with <200 µA total supply current. |
| Input Common-Mode Range | Includes V– (ground) and extends to (V+) – 1 V - permits direct interfacing with 0–V reference transducers and shunt-based current monitors. |
| Output Voltage Swing | 40–75 mV above V– (min), 1 V below V+ (min) - ensures usable dynamic range in 3.3-V single-supply configurations. |
| PSRR | 80–100 dB - rejects power rail noise in noisy DC-DC converter environments without additional filtering. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.5-mm lead pitch, exposed thermal pad optional. Pin 1 marked by beveled corner or dot; top-side marking includes TI logo and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output, Channel 1 | Amplified signal source for first op amp; drives loads ≥2 kΩ with 40–75 mV headroom to V–. |
| 2 (IN1–) | Inverting Input, Channel 1 | Differential node accepting feedback or inverted signal; accepts common-mode voltages from V– to (V+) – 1 V. |
| 3 (IN1+) | Noninverting Input, Channel 1 | Reference or sensor input node; same common-mode range as IN1–; low 15-pA bias current minimizes resistor-induced errors. |
| 4 (V–) | Negative Supply / Ground | Reference return for dual-supply operation or system ground for single-supply use; must be low-impedance. |
| 5 (IN2+) | Noninverting Input, Channel 2 | Independent second input path; identical electrical specs to IN1+; enables dual-sensor or dual-path signal processing. |
| 6 (IN2–) | Inverting Input, Channel 2 | Second differential input; supports independent gain configuration; shares no internal coupling with Channel 1. |
| 7 (OUT2) | Output, Channel 2 | Second independent output; same drive strength and swing limits as OUT1; isolated channel separation >100 dB @ 1 kHz. |
| 8 (V+) | Positive Supply | Main power input; bypass with 0.1-µF ceramic capacitor placed ≤2 mm from pin to suppress high-frequency supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input including ground | Enables direct connection of 0-V referenced sensors (e.g., thermistors, bridge outputs) without level-shifting circuitry. |
| No phase reversal under overdrive | Prevents catastrophic output latch-up in transient-heavy applications like motor current sensing or fault detection. |
| 2-kV HBM ESD rating | Supports robust handling in automated assembly and field-replaceable modules without external protection diodes. |
| 1.5 V/µs slew rate | Ensures faithful reproduction of 100-kHz sine waves with <1% distortion at G = 10 and RL = 10 kΩ. |
| Low 40 nV/√Hz input noise | Maintains SNR >70 dB in 100-Hz–10-kHz sensor bandwidths when paired with 10-kΩ source impedances. |
Applications
| Environmental Sensor Signal Conditioning | Low-Side Current Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level outputs from thermistors, RTDs, or humidity sensors in HVAC controllers and portable gas detectors. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end with matched gain paths and low drift. Use Value: ±1 mV offset and 84 dB CMRR enable sub-0.5°C temperature resolution without calibration in –40°C to 125°C ambient. |
Use Scenario: Monitoring battery discharge current in cordless power tools and UPS systems using milliohm shunt resistors. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input to measure Vshunt referenced to system ground. Use Value: 40–75 mV output swing above ground allows full-scale 0–1 A sensing with 3.3-V ADCs without level-shifting. |
| Oscilloscope Vertical Amplifier Stage | Rack-Mount Server Power Monitoring |
Use Scenario: Buffering and scaling analog input signals prior to digitization in handheld digital multimeters and entry-level oscilloscopes. IC Role / Device Role / Timing Role: Unity-gain stable buffer and programmable-gain stage with 1 MHz bandwidth and low noise. Use Value: 1.5 V/µs slew rate and 40 nV/√Hz noise support 100-kHz sine wave fidelity with THD+N <0.005% at 1 kHz. |
Use Scenario: Real-time monitoring of +12 V and +3.3 V rail currents in telecom and datacenter server PSUs. IC Role / Device Role / Timing Role: Dual-channel current sense amplifier driving isolated ADC inputs for redundant measurement paths. Use Value: Dual independent channels allow simultaneous monitoring of two rails with <1 µs overload recovery preventing missed fault events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904LVDR | SOIC-8 package (3.91 mm × 4.90 mm); RθJA = 207.9°C/W; identical electrical specs and pinout. | Preferred where board space allows larger footprint and thermal mass improves long-term reliability in high-ambient environments. | Select LM2904LVDR for manual soldering, prototyping, or legacy SOIC-compatible layouts. |
| TLV2462IDR | Higher quiescent current (550 µA/ch), wider supply range (2.7–6 V), lower offset (±250 µV), but reduced PSRR (70 dB). | Better for ultra-low-offset precision applications where power budget allows; less suitable for noisy DC-DC domains. | Choose TLV2462IDR only when offset voltage dominates design requirements and supply noise is well-filtered. |
Compared with LM2904LVDR and TLV2462IDR, the LM2904LVIDGKR offers optimal balance of ultra-low power (90 µA/ch), industry-standard VSSOP-8 footprint, and robust PSRR (80–100 dB) - making it the preferred choice for space-constrained, battery-operated, and high-noise industrial monitoring systems.
Availability
LM2904LVIDGKR is available at Aetrix Electronics and suitable for environmental sensor signal conditioning, low-side current sensing, oscilloscope vertical amplifiers, and rack-mount server power monitoring requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for LM2904LVIDGKR 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 innovation and broad manufacturing scale.
The LM290xLV product line targets cost-optimized, low-voltage general-purpose amplification - specifically engineered for battery-powered appliances, safety-critical smoke detectors, and personal electronics where 2.7–5.5 V operation and ground-sensing capability are mandatory.
FAQ
What is the maximum operating temperature for the LM2904LVIDGKR?
The LM2904LVIDGKR is rated for continuous operation from –40°C to +125°C ambient temperature, with guaranteed performance across this full range per its Recommended Operating Conditions table. Junction temperature must remain ≤150°C; derating is required above 85°C ambient depending on PCB copper area and airflow. The LM2904LVIDGKR maintains specified offset voltage, bandwidth, and output swing throughout this extended industrial temperature range.
Does the LM2904LVIDGKR support single-supply operation?
Yes, the LM2904LVIDGKR fully supports single-supply operation from 2.7 V to 5.5 V. Its input common-mode range includes the negative supply rail (ground), and its output swings within 40–75 mV of ground - enabling direct interfacing with ground-referenced sensors and ADCs. No dual supplies or level-shifting circuitry are needed for typical 3.3-V or 5-V systems. The LM2904LVIDGKR achieves this via its P-channel input stage and optimized output stage design.
What is the purpose of the "no phase reversal" feature in the LM2904LVIDGKR?
The "no phase reversal" feature prevents output polarity inversion when either input exceeds the common-mode range - a failure mode common in older op amps that causes system instability or false fault triggers. In the LM2904LVIDGKR, this is achieved through a complementary N-channel input stage that remains inactive during normal operation but clamps overdrive without reversing output polarity. This ensures reliable behavior in low-side current sensing and transient-prone applications, directly improving functional safety in designs using the LM2904LVIDGKR.
Can the LM2904LVIDGKR drive capacitive loads?
The LM2904LVIDGKR is unity-gain stable and characterized for capacitive loads up to 1000 pF, with phase margin ≥70° at CL = 100 pF. For loads >100 pF, stability is maintained but small-signal overshoot increases - Figure 6-18 shows ≤25% overshoot at CL = 1000 pF. To drive heavier loads (e.g., cables or ADC input capacitance), add a series isolation resistor (10–100 Ω) between LM2904LVIDGKR output and the load. This preserves stability without degrading DC accuracy.
How does the LM2904LVIDGKR compare to the legacy LM2904 in low-voltage operation?
The LM2904LVIDGKR delivers superior performance vs. the legacy LM2904 below 5 V: it operates down to 2.7 V (vs. 3 V min for LM2904), consumes 90 µA/ch (vs. 350–500 µA), achieves ±1 mV offset (vs. ±2–7 mV), and maintains 1 MHz bandwidth across the full 2.7–5.5 V range. The LM2904LVIDGKR also adds 2-kV HBM ESD protection and eliminates phase reversal - making it the drop-in upgrade for modern low-power, cost-sensitive systems where the original LM2904 falls short.
LM2904LVIDGKR 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:
- -
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 90µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.7 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
LM2904LVIDGKR FAQ
1.How can I place an order for LM2904LVIDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904LVIDGKR 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 LM2904LVIDGKR reliable?
The price and inventory of LM2904LVIDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904LVIDGKR is usually 5 days.
3.What payment methods are accepted for LM2904LVIDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904LVIDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904LVIDGKR?
LM2904LVIDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904LVIDGKR 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 LM2904LVIDGKR?
For technical support, including LM2904LVIDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904LVIDGKR requirements.
6.How does Aetrix verify that LM2904LVIDGKR is sourced from the original manufacturer or authorized distributors?
All LM2904LVIDGKR 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 LM2904LVIDGKR meets industry standards.
7.What is the process for return or replacement of LM2904LVIDGKR?
All LM2904LVIDGKR units undergo pre-shipment inspection (PSI). If there is an issue with LM2904LVIDGKR, 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 LM2904LVIDGKR part is unused and in its original packaging.
Return procedure for LM2904LVIDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904LVIDGKR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
