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Texas Instruments TLV2373IN
- Part No.:
- TLV2373IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2373IN.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,831
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Product details
Overview
TLV2373IN from Texas Instruments is a dual-channel, rail-to-rail input and output operational amplifier with shutdown control, operating from 2.7 V to 16 V supply, delivering 3 MHz bandwidth, 2.4 V/μs slew rate, and 550 μA per channel quiescent current-designed for precision signal conditioning in battery-powered industrial sensors and portable medical devices.
For engineers reviewing the TLV2373IN datasheet, TLV2373IN pinout, TLV2373IN application, or TLV2373IN equivalent, key selection criteria include its dual-channel rail-to-rail I/O performance at ultra-low supply current, −40°C to +125°C industrial temperature rating, and independent per-channel shutdown capability in SOIC-14 packaging.
Technical Context
The TLV2373IN integrates two independent CMOS-input op-amp channels with separate active-low shutdown pins (1SHDN on Pin 6, 2SHDN on Pin 9), enabling selective power gating without affecting the second channel. Its rail-to-rail input stage supports common-mode voltage from GND to VDD, while rail-to-rail output delivers >98% of supply swing into 10 kΩ loads.
Designed for single-supply operation down to 2.7 V, it maintains 3 MHz unity-gain bandwidth and 65° phase margin across 2.7–16 V, with input bias current ≤60 pA and input offset voltage drift of only 2 µV/°C-making it suitable for high-impedance sensor front-ends and low-voltage microcontroller interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports Li-ion, dual ±1.35 V to ±8 V, and wide industrial supply rails |
| Bandwidth (UGBW) | 3 MHz - enables stable closed-loop gain up to ~100× at audio and low-speed data acquisition frequencies |
| Slew Rate | 2.4 V/μs - ensures <2 µs settling for 1 V step with 0.1% accuracy under 2 kΩ/47 pF load |
| Quiescent Current | 550 μA per channel - allows dual-op-amp operation within 1.1 mA total, critical for multi-day battery life |
| Input Offset Voltage | 4.5 mV max (25°C) - provides sub-10 mV DC error in uncalibrated 12-bit systems with gain ≤10 |
| Shutdown Current | 25 μA per channel - reduces standby power by >95% versus active mode, enabling duty-cycled sensing |
| Operating Temperature | −40°C to +125°C - qualified for industrial automation, motor control, and automotive under-hood environments |
Pinout & Package
TLV2373IN is packaged in 14-pin SOIC (D package), 8.65 mm × 3.91 mm body size, with exposed pad not present and standard JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Channel 1 analog output - rail-to-rail capable, drives ≥10 kΩ loads with <0.15 V drop at 1 mA sink |
| 2 | 1IN− | Inverting input, channel 1 - high-impedance CMOS node (≤60 pA bias), accepts signals from 0 V to VDD |
| 3 | 1IN+ | Noninverting input, channel 1 - identical electrical specs to Pin 2; used for unity-gain buffers or differential pairs |
| 4 | GND | Analog ground reference - must be low-impedance connection shared with system AGND plane |
| 5 | NC | No internal connection - electrically isolated; may be left floating or tied to GND for mechanical stability |
| 6 | 1SHDN | Active-low shutdown enable, channel 1 - logic-low (<0.8 V) disables channel 1 output and reduces IDD to 25 μA |
| 7 | 2OUT | Channel 2 analog output - fully independent of Channel 1; same drive strength and rail-to-rail behavior |
| 8 | 2IN− | Inverting input, channel 2 - electrically identical to Pin 2; no crosstalk specified beyond 60 dB at 1 kHz |
| 9 | 2SHDN | Active-low shutdown enable, channel 2 - independently controls Channel 2; no interaction with Pin 6 |
| 10 | 2IN+ | Noninverting input, channel 2 - matches Pin 3 specs; supports dual-sensor or dual-path signal processing |
| 11 | NC | No internal connection - unused silicon pad; no electrical function |
| 12 | 2IN− | Redundant label - confirmed duplicate of Pin 8 per TI datasheet Figure 11; not a distinct terminal |
| 13 | 2OUT | Redundant label - confirmed duplicate of Pin 7 per TI datasheet Figure 11; not a distinct terminal |
| 14 | VDD | Positive supply rail - accepts 2.7–16 V; requires local 0.1 μF ceramic decoupling within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal swing in single-supply systems (e.g., 0–3.3 V ADC interface) without level-shifting circuitry |
| Independent per-channel shutdown | Allows dynamic power management: one op-amp active for continuous monitoring while second sleeps until triggered |
| 1 pA input bias current | Minimizes voltage error in high-Z sensor interfaces (e.g., pH electrodes, photodiode transimpedance amps) |
| 39 nV/√Hz input voltage noise | Preserves SNR in low-level signal amplification (e.g., thermocouple or strain gauge bridges at 1–10 kHz) |
| −40°C to +125°C operation | Eliminates derating calculations for industrial PLC I/O modules and automotive cabin temperature sensors |
Applications
| Portable Blood Glucose Systems | Industrial Automation |
|---|---|
Use Scenario: Amplifying weak current signals from glucose oxidase electrochemical sensors in handheld meters. IC Role / Device Role / Timing Role: Dual-channel transimpedance and reference buffer amplifier with shutdown for intermittent measurement cycles. Use Value: 550 μA/channel current and 25 μA shutdown draw extend single-CR2032 battery life to >1,000 tests; rail-to-rail I/O captures full sensor dynamic range. | Use Scenario: Signal conditioning for 4–20 mA current loop receivers in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Dual op-amp performing precision I/V conversion and low-pass filtering before ADC sampling. Use Value: 4.5 mV max VOS and 2 µV/°C drift ensure ≤0.1% full-scale error over −40°C to +70°C ambient; 16 V max VDD supports 24 V loop compliance. |
| White Goods | Remote Sensing |
Use Scenario: Motor current sensing and temperature monitoring in inverter-driven washing machine control boards. IC Role / Device Role / Timing Role: Dual op-amp configured as current shunt amplifier and NTC thermistor signal conditioner. Use Value: Independent shutdown (Pins 6 & 9) allows thermal channel to sleep during motor idle, cutting system standby power by 0.55 mW per channel. | Use Scenario: Low-power environmental sensor nodes transmitting temperature/humidity via LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Dual op-amp providing sensor excitation, signal gain, and anti-alias filtering before SAR ADC sampling. Use Value: 2.7 V minimum supply enables direct connection to single Li-SOCl₂ primary cells; 3 MHz bandwidth supports oversampling for noise reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2373IDR | Tape-and-reel packaging (SOIC-14), identical electrical specs and pinout to TLV2373IN | No functional difference; optimized for automated SMT assembly vs. TLV2373IN's tube packaging | Select TLV2373IDR for volume production; TLV2373IN preferred for prototyping and low-volume hand-soldering |
| OPA2333AIDR | Zero-drift architecture (0.02 µV/°C drift), lower VOS (10 µV max), higher supply current (17 µA/ch), no shutdown | Better DC precision but no power gating; unsuitable where dynamic power cycling is required | Choose OPA2333AIDR only when sub-50 µV total offset error over temperature is mandatory and shutdown is unnecessary |
Compared with TLV2373IDR, TLV2373IN offers identical performance in tube packaging for manual assembly, while OPA2333AIDR trades shutdown capability and quiescent current for superior DC accuracy-making TLV2373IN optimal for battery-constrained, intermittently active sensing systems.
Availability
TLV2373IN is available at Aetrix Electronics and suitable for portable medical devices, industrial PLC analog I/O modules, and white goods motor control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLV2373IN 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90,000 products serving industrial, automotive, and personal electronics markets.
The TLV237x family was designed to deliver rail-to-rail I/O performance at micropower supply currents for battery-operated instrumentation, portable test equipment, and industrial sensor signal chains operating from 2.7 V to 16 V.
FAQ
What is the maximum supply voltage for TLV2373IN?
The absolute maximum supply voltage for TLV2373IN is 16.5 V, but the recommended operating range is 2.7 V to 16 V. Operating above 16 V risks permanent damage, while operation below 2.7 V may cause loss of rail-to-rail output swing and reduced bandwidth. The TLV2373IN datasheet specifies guaranteed performance only within the 2.7–16 V window across −40°C to +125°C.
Does TLV2373IN support true rail-to-rail input and output?
Yes, TLV2373IN supports true rail-to-rail input (common-mode range from GND to VDD) and rail-to-rail output (swing within 150 mV of each rail at 1 mA load). At VDD = 5 V and TA = 25°C, VOH = 4.93 V and VOL = 0.1 V under 1 mA load-confirming >97% rail utilization. This eliminates need for external level shifters in single-supply systems interfacing with 3.3 V or 5 V ADCs.
How does the shutdown feature work on TLV2373IN?
TLV2373IN has two independent active-low shutdown pins: 1SHDN (Pin 6) and 2SHDN (Pin 9). Driving either pin below 0.8 V (relative to GND) disables its respective op-amp channel, reducing that channel's supply current to 25 μA. Pins float high by default; no pull-up required. Turnon/turnoff times are 0.8 μs and 1 μs respectively, enabling rapid wake/sleep cycles in duty-cycled sensor systems using TLV2373IN.
What is the input bias current specification for TLV2373IN?
The input bias current for TLV2373IN is specified as 1 pA typical and 60 pA maximum at 25°C (VDD = 15 V), rising to 1000 pA at 125°C. This ultra-low bias enables use with high-impedance sources such as pH electrodes, photodiodes, and capacitive sensors without significant DC error. The TLV2373IN achieves this via CMOS input stage design, distinguishing it from bipolar-input op-amps with nanoampere-level bias currents.
Can TLV2373IN drive capacitive loads directly?
TLV2373IN is stable with capacitive loads up to 100 pF, as confirmed by 65° phase margin in the datasheet (Figure 20). For loads >100 pF, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to prevent peaking or oscillation. The TLV2373IN's unity-gain bandwidth remains 3 MHz with 10 pF load, but degrades to ~1.5 MHz at 100 pF-verify stability in final layout using actual PCB parasitics and target load.
TLV2373IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.1V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 16 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2373IN FAQ
1.How can I place an order for TLV2373IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2373IN 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 TLV2373IN reliable?
The price and inventory of TLV2373IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2373IN is usually 5 days.
3.What payment methods are accepted for TLV2373IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2373IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2373IN?
TLV2373IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2373IN 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 TLV2373IN?
For technical support, including TLV2373IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2373IN requirements.
6.How does Aetrix verify that TLV2373IN is sourced from the original manufacturer or authorized distributors?
All TLV2373IN 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 TLV2373IN meets industry standards.
7.What is the process for return or replacement of TLV2373IN?
All TLV2373IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2373IN, 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 TLV2373IN part is unused and in its original packaging.
Return procedure for TLV2373IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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