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Texas Instruments TLV2322IPW
- Part No.:
- TLV2322IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2322IPW.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,475
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Product details
Overview
TLV2322IPW from Texas Instruments is a dual, low-voltage, rail-to-rail output operational amplifier optimized for single-supply operation in battery-powered sensor interfaces. It delivers 27 µA max supply current per channel at –40°C to +85°C, supports 2.7V to 8V supply range, features 10¹² Ω input impedance, and enables input common-mode voltage down to the negative rail and up to VDD – 1V - ideal for smoke detector front-end amplification and pressure transmitter signal conditioning.
For engineers reviewing the TLV2322IPW datasheet, TLV2322IPW pinout, TLV2322IPW application, or TLV2322IPW equivalent, this page provides verified specifications, TSSOP-8 package layout, real-world use cases in field transmitters, and validated alternative options for ultra-low-power analog signal conditioning.
Technical Context
The TLV2322IPW uses Texas Instruments' LinCMOS™ silicon-gate process to achieve ultra-low quiescent current (27 µA/channel) while maintaining rail-to-rail output swing and extended common-mode input range (–0.2 V to VDD – 1.2 V). Its architecture avoids internal phase inversion and incorporates latch-up immunity with ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2).
It operates fully functional at 3V and 5V supplies, with input offset voltage specified at 9 mV max (25°C), 11 mV over full temperature range, and temperature coefficient of only 1.1 µV/°C - enabling stable DC-coupled gain stages in portable instrumentation where thermal drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 8 V - supports direct connection to single Li-ion cell (3.0–3.7 V) or two alkaline cells (3.0 V nominal) without regulation. |
| Quiescent Current / Channel | 27 µA max (–40°C to +85°C) - enables multi-year battery life in wireless sensor nodes with duty-cycled amplification. |
| Input Offset Voltage | 9 mV max at 25°C; 11 mV max over full temperature range - ensures <±1% gain error in 100× sensor amplifier configurations at room temperature. |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-impedance sources like piezoresistive pressure sensors or thermopile outputs. |
| Common-Mode Input Range | Extends to negative rail and up to VDD – 1.2 V - allows direct interfacing to ground-referenced sensors without level-shifting circuitry. |
| Output Voltage Swing | Rail-to-rail (low-side to GND, high-side to VDD – 0.2 V @ 1 mA) - maximizes dynamic range in 3V systems with ADCs having 0–3V input range. |
| Unity-Gain Bandwidth | 27 kHz at 3V, 85 kHz at 5V - sufficient for DC–10 kHz sensor signal bandwidths including flow, temperature, and motion detection. |
Pinout & Package
PW package is an 8-pin Thin Shrink Small-Outline Package (TSSOP) with 0.65 mm pitch and 1.1 mm max height - optimized for space-constrained PCB layouts in portable field transmitters and smoke detectors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Output, channel 1 | Amplified signal output for first op-amp stage; capable of sourcing/sinking ±1 mA into 1 MΩ load. |
| OUT2 | Output, channel 2 | Independent output for second op-amp stage; enables dual-path signal conditioning (e.g., sensor + reference buffer). |
| 1IN+ | Noninverting input, channel 1 | High-impedance node for connecting sensor output or reference voltage; immune to bias current errors below 1 pA. |
| 1IN– | Inverting input, channel 1 | Feedback node for configuring gain; accepts resistive feedback networks without degrading precision due to ultra-low IIB. |
| 2IN+ | Noninverting input, channel 2 | Second independent high-Z input for auxiliary functions such as reference buffering or comparator hysteresis generation. |
| 2IN– | Inverting input, channel 2 | Configurable feedback node supporting active filtering or differential-to-single-ended conversion. |
| VDD+ | Positive power supply | Single positive rail connection; accepts 2.7–8 V; requires local 0.1 µF ceramic bypass capacitor to GND. |
| VDD– / GND | Ground or negative supply | Reference node for both inputs and outputs; must be low-impedance return path to avoid noise coupling in mixed-signal layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 27 µA max per channel over –40°C to +85°C - reduces total system power by >90% vs standard CMOS op-amps in always-on sensor nodes. |
| Rail-to-rail output swing | Drives within 150 mV of GND and within 200 mV of VDD at 1 mA - preserves full ADC resolution in 3V microcontroller-based data acquisition. |
| Extended common-mode input range | Includes negative rail and extends to VDD – 1.2 V - eliminates need for external level shifters when interfacing to ground-referenced transducers. |
| High input impedance | 10¹² Ω typical - prevents signal attenuation in high-Z sensor circuits (e.g., pH electrodes, thermopiles, capacitive humidity sensors). |
| ESD protection | 2000 V HBM rating per MIL-STD-883C, Method 3015.2 - improves robustness during handling and in-field deployment near electrostatic environments. |
Applications
| Smoke Detector Front-End | Pressure Transmitter Signal Chain |
|---|---|
|
Use Scenario: Amplifying weak ionization chamber current (pA–nA range) in battery-powered residential smoke alarms. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier and second-stage gain/level-shift stage, operating continuously at 3V from CR123A battery. Use Value: 27 µA/channel quiescent current enables >5 years of standby operation; rail-to-rail output ensures full utilization of 10-bit ADC input range. |
Use Scenario: Conditioning millivolt-level bridge output from MEMS pressure sensor in industrial process monitoring. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: one channel for sensor signal, one for reference buffer and offset compensation. Use Value: 10¹² Ω input impedance prevents bridge imbalance error; 9 mV max VIO limits zero-point drift to <0.5% FS over temperature. |
| Flow Transmitter Analog Interface | Motion Detector Signal Amplification |
|
Use Scenario: Amplifying low-amplitude AC signals from turbine or ultrasonic flow sensors in battery-operated utility meters. IC Role / Device Role / Timing Role: AC-coupled gain stage with high-pass filtering, powered from regulated 3.3V rail derived from primary battery. Use Value: 68 nV/√Hz input noise enables detection of sub-mV flow signals; unity-gain bandwidth of 85 kHz at 5V supports fast transient response. |
Use Scenario: Boosting pyroelectric sensor output in PIR-based occupancy sensors with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Low-noise preamplifier and active bandpass filter, enabled only during motion-triggered sampling windows. Use Value: Sub-pA input bias current avoids false triggers from leakage across high-value filter resistors; latch-up immunity prevents lockup during ESD 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 |
|---|---|---|---|
| TLV2422IDR | Higher supply current (125 µA/channel), wider VIO range (2.5 mV typ), rail-to-rail input/output | Better DC precision but 4.6× higher quiescent current - unsuitable for multi-year battery life requirements | Select TLV2422IDR only when lower input offset voltage and rail-to-rail input capability outweigh battery life constraints. |
| LPV521MG/NOPB | Lower supply current (320 nA/channel), smaller 6-pin SC70 package, single-channel only | Not pin-compatible; requires redesign for dual-channel functionality; superior for ultra-low-power single-sensor nodes | Choose LPV521MG/NOPB when minimizing board area and power dominates over channel count - not a drop-in replacement. |
Compared with TLV2322IPW, TLV2422IDR trades battery runtime for improved DC accuracy, while LPV521MG/NOPB achieves nanoamp quiescent current at the cost of channel count and pin compatibility - making TLV2322IPW the optimal balance for dual-channel, long-life, low-voltage sensor signal conditioning.
Availability
TLV2322IPW is available at Aetrix Electronics and suitable for smoke detector manufacturing, industrial pressure transmitter production, and portable motion sensor design requiring stable component supply and long-term lifecycle support.
Supply support for TLV2322IPW 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 expertise in low-power op-amp design and industrial-grade reliability validation.
The TLV2322IPW belongs to TI's legacy LinCMOS™ low-voltage op-amp family, engineered specifically for ultra-low-power, single-supply sensor interface applications in battery-operated safety and measurement equipment.
FAQ
What is the maximum operating supply voltage for TLV2322IPW?
The TLV2322IPW has an absolute maximum supply voltage rating of 8 V, as specified in Section 5.1 of its datasheet. Operation beyond this voltage risks permanent damage. For reliable long-term performance, it is recommended to operate within the recommended range of 2.7 V to 8 V, with full characterization performed at 3 V and 5 V. The TLV2322IPW maintains specified performance across this entire range, including input/output behavior and quiescent current.
Does TLV2322IPW support true rail-to-rail input operation?
No, the TLV2322IPW does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (GND) and up to VDD – 1.2 V over temperature, as confirmed in Section 5.3 and Table 4-1 of the datasheet. While this enables ground-sensing capability, the upper limit excludes the positive rail - unlike rail-to-rail input op-amps. This limitation is inherent to its LinCMOS™ input stage design and must be accounted for in circuit layout. The TLV2322IPW remains rail-to-rail on the output side.
What is the input offset voltage specification for TLV2322IPW at full temperature range?
The TLV2322IPW has a maximum input offset voltage of 11 mV over the full operating temperature range of –40°C to +85°C, as stated in Section 5.4 Electrical Characteristics. At 25°C, the typical value is 1.1 mV with a maximum of 9 mV. This parameter is critical for DC-coupled applications such as sensor amplification, where offset directly impacts measurement accuracy. The average temperature coefficient is 1.1 µV/°C, ensuring predictable drift behavior across industrial temperature extremes.
Can TLV2322IPW drive capacitive loads directly?
The TLV2322IPW is not unity-gain stable with large capacitive loads. Its phase margin drops to 28° at 85°C (Section 5.5–5.6), indicating marginal stability under reactive loading. Driving >100 pF directly may cause ringing or oscillation. For capacitive loads exceeding 50 pF, a series resistor (e.g., 10–100 Ω) should be placed between the output and the load capacitance to isolate the amplifier's output stage. This technique is validated in TI application notes for LinCMOS™ op-amps and applies directly to the TLV2322IPW.
Is TLV2322IPW pin-compatible with other members of the TLV232x family?
Yes, the TLV2322IPW (dual-channel, 8-pin TSSOP) shares identical pinout with TLV2322ID (SOIC-8) and TLV2322IP (PDIP-8), as shown in Figure 4-2 and Table 4-1 of the datasheet. However, it is not pin-compatible with the quad-channel TLV2324 variants (14-pin packages), nor with unrelated families such as TLV2422 or LPV521. Pin compatibility is strictly limited to same-channel-count, same-package-outline variants within the TLV2322 designation.
TLV2322IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 85 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLV2322IPW FAQ
1.How can I place an order for TLV2322IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2322IPW 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 TLV2322IPW reliable?
The price and inventory of TLV2322IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2322IPW is usually 5 days.
3.What payment methods are accepted for TLV2322IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2322IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2322IPW?
TLV2322IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2322IPW 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 TLV2322IPW?
For technical support, including TLV2322IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2322IPW requirements.
6.How does Aetrix verify that TLV2322IPW is sourced from the original manufacturer or authorized distributors?
All TLV2322IPW 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 TLV2322IPW meets industry standards.
7.What is the process for return or replacement of TLV2322IPW?
All TLV2322IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLV2322IPW, 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 TLV2322IPW part is unused and in its original packaging.
Return procedure for TLV2322IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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