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Texas Instruments LMV934IDG4
- Part No.:
- LMV934IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV934IDG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,832
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Product details
Overview
LMV934IDG4 from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for 1.8-V to 5-V single-supply operation. It delivers 1.4 MHz gain bandwidth, 100 μA per amplifier supply current, and output swing within 80 mV of rails under 600-Ω load - enabling precision signal conditioning in battery-powered industrial sensors and portable audio front-ends.
For engineers reviewing the LMV934IDG4 datasheet, LMV934IDG4 pinout, LMV934IDG4 application, or LMV934IDG4 equivalent, key selection criteria include its –40°C to 125°C operating range, SOIC-14 package compatibility, rail-to-rail common-mode input extending 200 mV beyond supplies, and verified performance at 1.8 V with <4 mV max input offset voltage.
Technical Context
The LMV934IDG4 employs a Class AB output stage with complementary bipolar input transistors, enabling rail-to-rail input common-mode range (VCC– – 0.2 V to VCC+ + 0.2 V) and low-distortion output drive into capacitive loads up to 1000 pF. Its internal biasing supports stable operation across 1.8–5 V supply while maintaining >75 dB CMRR over full temperature range.
Each of the four independent amplifiers features matched DC characteristics: typical 103 μA quiescent current per channel at 1.8 V, 1.4 MHz unity-gain bandwidth, and 0.35 V/μs slew rate. The device is characterized for automotive-grade reliability with ESD protection rated at 2000 V HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5 V - enables direct interface with Li-ion single-cell or two-cell battery systems without level-shifting. |
| Gain Bandwidth Product | 1.4 MHz - supports stable closed-loop gain ≥10 at audio frequencies up to 140 kHz. |
| Input Offset Voltage (max) | 4 mV - ensures ≤40 mV error in unity-gain buffer configuration with 10 V output span. |
| Rail-to-Rail Output Swing | Within 80 mV of rails @ 600 Ω - preserves dynamic range in low-voltage ADC driver and sensor signal chain stages. |
| Quiescent Current / Amp | 100 μA - allows four-channel amplification in always-on monitoring circuits with <400 μA total supply draw. |
| Input Common-Mode Range | VCC– – 0.2 V to VCC+ + 0.2 V - accepts inputs below ground or above supply, simplifying single-supply transducer interfacing. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive and industrial utility metering environments. |
Pinout & Package
LMV934IDG4 is housed in a 14-pin SOIC (D) package with standard 1.27-mm pitch, 8.65-mm body length, and exposed pad not present. Pin mapping follows TI's quad op-amp convention for SOIC-14.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives external load or feedback network; rail-to-rail capable. |
| 2 | 1IN− | Inverting input of Amplifier A - high-impedance node requiring guarded layout for low-noise apps. |
| 3 | 1IN+ | Non-inverting input of Amplifier A - accepts signals down to VCC– – 0.2 V for true single-supply operation. |
| 4 | VCC+ | Positive supply rail - connects to main system VDD (1.8–5 V); decoupling capacitor required. |
| 5 | 2IN+ | Non-inverting input of Amplifier B - electrically isolated from other channels; shares no internal nodes. |
| 6 | 2IN− | Inverting input of Amplifier B - matched offset and bias current to Amplifier A for differential pair use. |
| 7 | 2OUT | Amplifier B output - independently configurable; may be used for active filtering or gain staging. |
| 8 | VCC− | Negative supply rail - typically GND in single-supply systems; must be low-impedance return path. |
| 9 | 3OUT | Amplifier C output - supports multi-channel signal processing without external multiplexing. |
| 10 | 3IN− | Inverting input of Amplifier C - identical electrical specs to Pins 2 and 6; validated for simultaneous use. |
| 11 | 3IN+ | Non-inverting input of Amplifier C - enables three independent sensor amplifiers on one IC. |
| 12 | 4IN+ | Non-inverting input of Amplifier D - completes quad configuration; pin-compatible with LMV934ID and LMV934IDR. |
| 13 | 4IN− | Inverting input of Amplifier D - supports fourth channel in battery monitor or motor control feedback loop. |
| 14 | 4OUT | Amplifier D output - fully specified for 600-Ω load drive at 1.8 V; no derating required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply headroom - critical for maximizing SNR in low-voltage data acquisition. |
| 100 μA per amplifier supply current | Supports always-on sensor interfaces with <400 μA total quiescent draw - extends battery life in portable meters. |
| 1.4-MHz gain bandwidth at 1.8 V | Permits stable unity-gain buffering of 100-kHz signals without phase margin degradation. |
| 200-mV beyond-rail input common-mode range | Eliminates need for external level-shifting when interfacing with transducers referenced to negative bias. |
| Specified from –40°C to 125°C | Validated for deployment in automotive engine control units and industrial energy metering enclosures. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Environment Monitoring |
|---|---|
Use Scenario: Amplifying low-level outputs from RTD, thermistor, or bridge-based pressure sensors in utility meters and PLC I/O modules. IC Role / Device Role / Timing Role: Quad-channel precision buffer and programmable-gain stage before 12-bit SAR ADC sampling. Use Value: Rail-to-rail input allows direct connection to grounded-sensor configurations; 4-mV max VIO ensures <0.04% full-scale error at 10-V span. | Use Scenario: Signal conditioning for CO₂, humidity, and cabin temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: Four independent analog front-ends converting sensor outputs to microcontroller ADC inputs. Use Value: 125°C rating permits placement near heat sources; 1.8-V operation aligns with automotive domain controller power domains. |
| Portable Audio Line Driver | Battery Voltage Monitoring System |
Use Scenario: Driving stereo headphone outputs or line-level signals in PDAs and portable media players powered by single Li-ion cells. IC Role / Device Role / Timing Role: Low-noise, low-distortion output driver with THD <0.023% at 1 kHz and 600-Ω load. Use Value: 80-mV rail-to-rail swing at 1.8 V preserves >90% of available dynamic range for 16-bit audio playback. | Use Scenario: Simultaneous monitoring of main battery, backup coin cell, and USB VBUS in handheld medical devices. IC Role / Device Role / Timing Role: Four-channel ratiometric measurement front-end scaling battery voltages to ADC reference. Use Value: Matched amplifier offsets (<4 mV) ensure consistent voltage reading accuracy across all four monitored rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV934IDR | Identical electrical specs and SOIC-14 pinout; differs only in tape-and-reel packaging (2500 pcs vs. 250 pcs for IDG4). | No functional difference; both qualified for –40°C to 125°C operation and share same top-side marking "LMV934I". | Select LMV934IDR for high-volume production runs requiring reel delivery; LMV934IDG4 suits prototyping and low-quantity procurement. |
| TLV2464CDR | Higher supply current (550 μA/amp), wider GBW (6.4 MHz), but larger input offset (2.5 mV typ, 6 mV max) and no 1.8-V characterization. | Not recommended for 1.8-V battery-critical designs; better suited for higher-speed, higher-power industrial control loops. | Choose TLV2464CDR only if bandwidth >3 MHz is required and 1.8-V operation is unnecessary; LMV934IDG4 remains optimal for ultra-low-power, low-voltage precision. |
Compared with LMV934IDR, LMV934IDG4 offers identical performance in a smaller-order-quantity package; versus TLV2464CDR, it provides 5.5× lower quiescent current and guaranteed 1.8-V functionality at the cost of bandwidth - making it the sole choice for energy-constrained, low-voltage quad-amplifier applications.
Availability
LMV934IDG4 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin environment monitoring, and portable audio line driver applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LMV934IDG4 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, efficiency, and design enablement.
The LMV93x family was engineered specifically for low-voltage, low-power precision analog signal chains - targeting battery-operated instrumentation, portable consumer electronics, and automotive subsystems where rail-to-rail operation at 1.8 V is mandatory.
FAQ
What is the maximum operating supply voltage for LMV934IDG4?
The absolute maximum supply voltage (VCC+ – VCC–) for LMV934IDG4 is 5.5 V, but the recommended operating range is 1.8 V to 5 V. Operation at 5.5 V is not advised for continuous use as it exceeds the specified limits and may impact long-term reliability. All electrical characteristics in the datasheet are guaranteed only between 1.8 V and 5 V, with full –40°C to 125°C qualification at these levels. LMV934IDG4 must never be operated beyond 5.5 V differential supply.
Does LMV934IDG4 support true rail-to-rail input at 1.8 V?
Yes, LMV934IDG4 supports rail-to-rail input with common-mode voltage range extending 200 mV beyond both supply rails (VCC– – 0.2 V to VCC+ + 0.2 V) at 1.8 V operation. This is explicitly verified in the Electrical Characteristics table for VCC = 1.8 V, where VICR is specified as VCC– – 0.2 V to VCC+ + 0.2 V at 25°C and VCC– + 0.2 V to VCC+ – 0.2 V over full temperature. This capability enables direct interfacing with sensors referenced below ground or above VCC without external level shifters.
What is the output drive capability of LMV934IDG4 into a 600-Ω load at 1.8 V?
At 1.8 V supply and 25°C, LMV934IDG4 delivers a minimum high-level output voltage of 1.63 V and low-level output voltage of 0.12 V into a 600-Ω load - corresponding to 170 mV and 80 mV from the positive and negative rails respectively. These values are specified in the "Output swing" row of the 1.8-V Electrical Characteristics table. The device maintains this performance across –40°C to 125°C, with worst-case swing degrading to 1.6 V (200 mV from rail) and 0.13 V (130 mV from rail) at temperature extremes.
Is LMV934IDG4 pin-compatible with other packages in the LMV934 family?
LMV934IDG4 (SOIC-14) shares identical pinout and electrical functionality with LMV934ID (SOIC-14 tube), LMV934IDR (SOIC-14 tape-and-reel), and LMV934IPW (TSSOP-14). However, it is not pin-compatible with TSSOP-14 due to different mechanical footprint and thermal pad configuration - though logic function and terminal assignment match. No adapter or redesign is needed when substituting between SOIC variants; PCB layout remains unchanged across LMV934ID, LMV934IDG4, and LMV934IDR.
What is the input bias current specification for LMV934IDG4 at 25°C and 1.8 V?
At 25°C and 1.8 V supply, LMV934IDG4 exhibits a typical input bias current of 15 nA and a maximum of 35 nA, as specified in the "IIB Input bias current" row of the 1.8-V Electrical Characteristics table. This value applies to all four amplifiers and remains stable across the full common-mode input range. The low bias current minimizes voltage errors in high-impedance sensor interfaces such as photodiode transimpedance amplifiers or thermistor voltage dividers, where source impedances exceed 100 kΩ.
LMV934IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 116µA (x4 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMV934IDG4 FAQ
1.How can I place an order for LMV934IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV934IDG4 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 LMV934IDG4 reliable?
The price and inventory of LMV934IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV934IDG4 is usually 5 days.
3.What payment methods are accepted for LMV934IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV934IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV934IDG4?
LMV934IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV934IDG4 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 LMV934IDG4?
For technical support, including LMV934IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV934IDG4 requirements.
6.How does Aetrix verify that LMV934IDG4 is sourced from the original manufacturer or authorized distributors?
All LMV934IDG4 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 LMV934IDG4 meets industry standards.
7.What is the process for return or replacement of LMV934IDG4?
All LMV934IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV934IDG4, 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 LMV934IDG4 part is unused and in its original packaging.
Return procedure for LMV934IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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