My Inquiry
My Account
Texas Instruments TLV4120IDGNG4
- Part No.:
- TLV4120IDGNG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TLV4120IDGNG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,019
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV4120IDGNG4 from Texas Instruments is a single-supply, rail-to-rail output, high-output-current differential operational amplifier delivering >200 mA per output at 5 V supply. It integrates two amplifiers (A1 configurable, A2 fixed inverting) to generate complementary high-current differential drive for heavy loads. Its shutdown function reduces supply current to 6 µA, enabling use in energy-sensitive line drivers and LVDT coil drivers.
For engineers reviewing the TLV4120IDGNG4 datasheet, TLV4120IDGNG4 pinout, TLV4120IDGNG4 application, or TLV4120IDGNG4 equivalent, key selection criteria include differential output current capability (>200 mA), rail-to-rail swing under 2.7–5.5 V supply, thermal performance in MSOP PowerPAD™ package, and shutdown-controlled power management in industrial temperature range (−40°C to 85°C).
Technical Context
The TLV4120IDGNG4 implements a dual-amplifier architecture: A1 is a fully configurable op-amp (inverting/noninverting/difference), while A2 is internally biased at VDD/2 and configured as a fixed inverting amplifier. This enables true differential output generation from a single-ended input without external level-shifting circuitry.
Its internal VDD/2 bias network (500 kΩ resistors) feeds both amplifiers' common-mode reference, and the shutdown control (SHDN) disables both outputs into high-impedance state while reducing IDD to ≤50 µA across −40°C to 85°C. The MSOP PowerPAD™ package provides θJC = 4.7°C/W and supports continuous 350 mA per output at TJ ≤ 105°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 200 mA per output at 5 V (measured at 0.5 V from rail); enables direct driving of low-impedance differential loads like coils and line terminations. |
| Rail-to-Rail Output | VOH ≥ 4.45 V and VOL ≤ 0.55 V at 5 V supply and 200 mA load; delivers full dynamic range across supply rails for maximum signal fidelity. |
| Unity-Gain Bandwidth | 2.4 MHz (RL = 100 Ω, CL = 10 pF); supports stable closed-loop operation up to audio and low-speed control frequencies. |
| Slew Rate | 1.5 V/µs at 5 V supply; ensures <1 µs settling for 1 VPP signals, critical for pulse-driven actuators and fast line transitions. |
| Supply Voltage Range | 2.7 V to 5.5 V; compatible with Li-ion, USB-powered, and industrial 3.3 V/5 V systems without level translation. |
| Shutdown Current | 6 µA typical (≤50 µA over full temperature range); allows battery-backed or intermittent-operation systems to minimize quiescent drain. |
| Operating Temperature | −40°C to +85°C (Industrial grade); validated for deployment in automotive body electronics, factory automation, and outdoor instrumentation. |
Pinout & Package
The TLV4120IDGNG4 is housed in an 8-pin MSOP PowerPAD™ package (DGN), featuring an exposed thermal pad on the underside electrically isolated from all terminals. This design enables low-junction-to-ambient thermal resistance (θJA = 52.7°C/W) when soldered to a PCB copper area connected to ground plane via five 13-mil vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting input of amplifier A1 | Accepts feedback or signal inversion path; high-impedance MOS input (IIB ≤ 300 pA) minimizes loading on source networks. |
| 2 - IN+ | Noninverting input of amplifier A1 | Configurable signal input node; supports single-ended, differential, or buffered configurations depending on external resistor network. |
| 3 - GND | Analog ground reference | Return path for internal bias circuits and output stage; must be tied to low-impedance system ground plane for noise immunity. |
| 4 - VDD/2 | Internal mid-rail bias voltage node | Provides 2.5 V (at 5 V supply) reference for A2's inverting stage; requires external 0.1–2.2 µF low-ESR bypass capacitor (CB) for stability. |
| 5 - VO− | Negative differential output | Complementary output driven by A2; swings opposite VO+ to double effective load voltage and quadruple delivered power. |
| 6 - VDD | Positive supply rail | Accepts 2.7–5.5 V; requires local 0.1 µF ceramic + 10 µF electrolytic decoupling to maintain PSRR >65 dB and THD+N <0.1%. |
| 7 - VO+ | Positive differential output | Primary output from A1; forms bridge-tied load (BTL) pair with VO− to drive coils, transformers, or balanced transmission lines. |
| 8 - SHDN | Active-low shutdown control | Pull ≤ VDD/3 to enable; pull ≥ 0.75×VDD to disable; open-drain logic requires external pull-down for defined state. |
Key Features
| Feature | Design Value |
|---|---|
| Differential high-current drive | Delivers >200 mA per output into 100 Ω loads at 5 V, enabling direct BTL driving of solenoids, voice coils, and LVDT primaries without external transistors. |
| Thermally enhanced PowerPAD™ | MSOP-DGN package with exposed thermal pad achieves θJC = 4.7°C/W; supports 350 mA continuous per output at TJ ≤ 105°C with proper PCB layout. |
| Integrated VDD/2 bias generator | On-chip 500 kΩ resistor divider establishes precise mid-rail reference for A2, eliminating need for external bias network and reducing component count. |
| Low-power shutdown mode | Reduces supply current to 6 µA typical (≤50 µA max), allowing microcontroller-gated operation in portable or always-on sensor nodes. |
| Rail-to-rail output swing | VOH ≥ 4.45 V and VOL ≤ 0.55 V at 5 V/200 mA ensures >90% of supply rail utilization, maximizing signal headroom in low-voltage systems. |
Applications
| LVDT & Position Sensor Excitation | High-Current Line Driver |
|---|---|
|
Use Scenario: Driving primary winding of linear variable differential transformer (LVDT) in precision industrial position feedback systems operating from 3.3 V or 5 V supplies. IC Role / Device Role / Timing Role: Differential amplifier generating matched ±2.5 V AC excitation waveform across LVDT primary, referenced to VDD/2. Use Value: Eliminates external op-amp + level shifter; 200 mA drive capability ensures stable excitation into inductive loads up to 100 Ω DCR, improving SNR and resolution. |
Use Scenario: Transmitting analog signals over long cables (e.g., 4–20 mA loop interfaces, PLC analog outputs) requiring robust EMI immunity and low distortion. IC Role / Device Role / Timing Role: Bridge-tied load (BTL) driver converting single-ended DAC output into balanced differential voltage for twisted-pair transmission. Use Value: Doubles effective load voltage swing and quadruples delivered power vs single-ended drive, reducing susceptibility to common-mode noise and cable loss. |
| Coil & Solenoid Actuator Driver | Audio Signal Distribution Amplifier |
|
Use Scenario: Directly energizing electromagnetic solenoids or relay coils in factory automation controllers where space-constrained PCBs prohibit discrete H-bridge solutions. IC Role / Device Role / Timing Role: High-current differential output stage sourcing/sinking >200 mA to drive inductive loads with fast turn-on/turn-off controlled by microcontroller GPIO via SHDN. Use Value: Enables compact, low-component-count actuator interface with integrated shutdown-reducing standby power to <10 µW and simplifying thermal management. |
Use Scenario: Distributing low-distortion audio signals (e.g., from codec DAC) to multiple balanced inputs (e.g., professional audio mixers, studio monitors) in embedded media devices. IC Role / Device Role / Timing Role: Low-noise (10 nV/√Hz), unity-gain stable differential buffer providing 2.4 MHz bandwidth and <0.01% THD+N at 1 kHz into 100 Ω loads. Use Value: Maintains signal integrity over short runs without external gain stages; rail-to-rail swing preserves dynamic range in 3.3 V systems, avoiding clipping artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3091DGNR | Higher slew rate (2750 V/µs) and bandwidth (210 MHz), but lower output current (250 mA peak, not continuous), no integrated VDD/2 bias or shutdown. | Targeted at high-speed video or RF IF stages-not optimized for sustained DC/low-frequency coil driving or low-power shutdown modes. | Choose THS3091DGNR only when bandwidth >100 MHz is required and continuous 200 mA load current is not needed. |
| OPA564IDGNT | Higher continuous output current (1.5 A), wider supply range (7–24 V), but no differential output architecture or integrated VDD/2 reference; requires external biasing. | Designed for single-ended high-current loads (e.g., piezo drivers, motor phases); lacks native BTL capability and shutdown control. | Choose OPA564IDGNT when driving unbalanced loads >500 mA at >7 V supply; avoid if differential signaling or low-voltage shutdown is required. |
Compared with THS3091DGNR and OPA564IDGNT, the TLV4120IDGNG4 uniquely combines differential output architecture, integrated VDD/2 bias, active shutdown, and 200 mA continuous drive in a thermally optimized 3 mm × 3 mm MSOP package-making it the only solution that satisfies all four requirements simultaneously for industrial sensor excitation and low-voltage line driving.
Availability
TLV4120IDGNG4 is available at Aetrix Electronics and suitable for industrial sensor excitation, high-current line driving, and coil actuation applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TLV4120IDGNG4 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, embedded processing, and power management ICs, with decades of expertise in high-performance op-amps and precision signal chain solutions.
The TLV4120IDGNG4 belongs to TI's high-output-current operational amplifier product line, designed specifically for industrial and automotive applications demanding robust differential drive, thermal efficiency, and low-power shutdown capability.
FAQ
What is the maximum continuous output current per channel for TLV4120IDGNG4 at 85°C ambient?
The TLV4120IDGNG4 delivers 350 mA continuous per output at TJ ≤ 105°C. At TA = 85°C with proper PCB thermal design (PowerPAD soldered to ground plane), junction temperature remains within limit, sustaining 350 mA. Derating applies above TJ = 105°C: at TJ = 150°C, max continuous current drops to 110 mA per output.
Does TLV4120IDGNG4 require external components to generate its VDD/2 bias voltage?
No. The TLV4120IDGNG4 includes an internal 500 kΩ resistor divider that generates VDD/2 at pin 4. However, an external low-ESR bypass capacitor (CB = 0.1–2.2 µF) is mandatory on pin 4 to stabilize the reference, suppress noise coupling, and control startup bounce-per TI's SLMA002 PowerPAD guidelines.
Can TLV4120IDGNG4 drive capacitive loads, and what is the recommended compensation?
Yes, TLV4120IDGNG4 can drive capacitive loads up to 1 nF stably. For loads >1 nF, TI recommends adding a series nulling resistor (RNULL) between each output (pins 5 and 7) and the load to restore phase margin. RNULL value depends on CL and RL; typical values range from 1 Ω to 10 Ω, trading off slight output voltage drop for stability.
Is the thermal pad of TLV4120IDGNG4 electrically connected to any internal node?
No. The exposed thermal pad on the TLV4120IDGNG4 MSOP PowerPAD™ package is electrically isolated from all pins and internal circuitry. It must be soldered to a PCB copper area tied to GND (pin 3) for optimal thermal conduction-but no electrical connection exists between the pad and die or pins.
How does the shutdown function affect output state in TLV4120IDGNG4?
When SHDN (pin 8) is pulled high (>0.75×VDD), TLV4120IDGNG4 disables both amplifiers and places VO+ (pin 7) and VO− (pin 5) into high-impedance state-neither sourcing nor sinking current. Supply current drops to ≤50 µA. Outputs remain floating; external pull-downs may be needed if defined low-impedance state is required during shutdown.
TLV4120IDGNG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 1.57V/µs
- Gain Bandwidth Product:
- 2.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.3 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 1.4mA
- Current - Output / Channel:
- 320 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TLV4120IDGNG4 FAQ
1.How can I place an order for TLV4120IDGNG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4120IDGNG4 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 TLV4120IDGNG4 reliable?
The price and inventory of TLV4120IDGNG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4120IDGNG4 is usually 5 days.
3.What payment methods are accepted for TLV4120IDGNG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4120IDGNG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4120IDGNG4?
TLV4120IDGNG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4120IDGNG4 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 TLV4120IDGNG4?
For technical support, including TLV4120IDGNG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4120IDGNG4 requirements.
6.How does Aetrix verify that TLV4120IDGNG4 is sourced from the original manufacturer or authorized distributors?
All TLV4120IDGNG4 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 TLV4120IDGNG4 meets industry standards.
7.What is the process for return or replacement of TLV4120IDGNG4?
All TLV4120IDGNG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV4120IDGNG4, 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 TLV4120IDGNG4 part is unused and in its original packaging.
Return procedure for TLV4120IDGNG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV4120IDGNG4 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…
