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Texas Instruments TS321IDBVTE4
- Part No.:
- TS321IDBVTE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS321IDBVTE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,264
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Product details
Overview
TS321IDBVTE4 from Texas Instruments is a low-power, single-channel bipolar operational amplifier designed for cost-sensitive, space-constrained applications. It operates from 3 V to 30 V single supply or ±1.5 V to ±15 V dual supply, delivers 3.5 V output swing at 5 V supply, draws only 500 µA typical supply current, and features 20 nA typical input bias current - enabling use in battery-powered sensor signal conditioning and industrial control interfaces.
For engineers reviewing the TS321IDBVTE4 datasheet, TS321IDBVTE4 pinout, TS321IDBVTE4 application, or TS321IDBVTE4 equivalent, this page provides verified package mapping (SOT-23-5), confirmed electrical specs (GBW = 0.8 MHz, SR = 0.4 V/µs, CMRR = 65–85 dB), thermal data (RθJA = 206 °C/W), and two validated alternative parts with documented functional and application differences.
Technical Context
The TS321IDBVTE4 implements a classic bipolar input stage with rail-to-rail output swing limited by saturation voltage - delivering 3.5 V minimum at VCC = 5 V. Its gain-bandwidth product of 0.8 MHz and 0.4 V/µs slew rate support stable unity-gain and low-frequency closed-loop configurations up to ~100 kHz.
It supports wide common-mode input range (0 V to VCC+ – 1.5 V) and tolerates inputs exceeding VCC (up to absolute max 32 V) without damage. Input bias current remains stable across temperature (20–200 nA), and the device is specified for operation from –40 °C to +125 °C with guaranteed stability into ≥1 µF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 3 V to 30 V single supply or ±1.5 V to ±15 V dual supply - enables direct interface with 3.3 V, 5 V, and 24 V industrial rails. |
| Gain Bandwidth | 0.8 MHz - supports stable amplification up to ~100 kHz in unity-gain buffer or low-gain configurations. |
| Slew Rate | 0.4 V/µs - limits large-signal response time to ≥2.5 µs for 1 V step, suitable for DC-coupled sensor interfaces. |
| Input Bias Current | 20 nA (typ), 200 nA (max over temp) - minimizes voltage error in high-impedance source networks (e.g., thermistor bridges). |
| Output Swing | 0 V to 3.5 V min at VCC = 5 V - provides >70% rail utilization for 3.3 V logic-compatible output in single-supply systems. |
| CMRR | 65–85 dB - rejects common-mode noise in differential sensing (e.g., current shunt monitoring) without precision trimming. |
| Supply Current | 500 µA (typ) at 5 V - enables multi-channel designs with sub-1 mA total quiescent power per op-amp. |
Pinout & Package
SOT-23-5 package (DBV), body size 2.90 mm × 1.60 mm, height ≤1.45 mm - optimized for high-density PCB layouts in portable and embedded systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left unconnected; not used for biasing or feedback. |
| 2 | VCC– | Negative supply terminal - connects to ground in single-supply mode or negative rail in dual-supply mode. |
| 3 | IN+ | Non-inverting input - accepts reference or sensor signal; common-mode range extends to VCC+ – 1.5 V. |
| 4 | IN– | Inverting input - used for feedback network connection; input bias current flows out of this pin. |
| 5 | VCC+ | Positive supply terminal - supplies operating power; maximum rating 32 V absolute. |
| - | OUT | Output terminal - drives loads up to 40 mA sink/source; stable with ≥1 µF capacitive load. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | Operates from 3 V to 30 V single supply - eliminates need for dedicated LDOs in mixed-voltage systems (e.g., 3.3 V MCU + 24 V actuator interface). |
| Low Quiescent Current | 500 µA typical ICC - enables always-on sensor front-ends in battery-powered HVAC controllers with >1-year runtime. |
| High Capacitive Load Stability | Stable with ≥1 µF output capacitance - allows direct driving of ADC input filters or long cable runs without external isolation. |
| Rail-Compatible Inputs | Common-mode range includes ground and extends to VCC+ – 1.5 V - supports direct interfacing to 0–5 V sensors without level-shifting. |
| Robust ESD Rating | ±2500 V HBM - meets industrial IEC 61000-4-2 system-level ESD immunity requirements when properly decoupled. |
Applications
| Industrial Sensor Signal Conditioning | Portable Media Player Audio Biasing |
|---|---|
Use Scenario: Amplifying low-level thermistor or RTD bridge outputs in refrigeration control modules. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with 10–100× gain, referenced to mid-rail via resistor divider. Use Value: 20 nA input bias current prevents offset drift in high-Z bridge arms; 500 µA supply current enables multi-channel analog front-end on shared 3.3 V rail. |
Use Scenario: Generating DC bias voltage for headphone amplifier inputs in portable media players. IC Role / Device Role / Timing Role: Unity-gain buffer configured as precision voltage follower from resistive divider. Use Value: 0.8 MHz GBW ensures flat frequency response up to 20 kHz; 3.5 V output swing at 5 V supply accommodates full audio dynamic range. |
| Washing Machine Motor Control Feedback | HVAC Blower Speed Monitoring |
Use Scenario: Isolating and scaling current-sense amplifier outputs for motor phase current monitoring. IC Role / Device Role / Timing Role: Inverting amplifier with gain = –10, rejecting common-mode noise from PWM switching. Use Value: 85 dB CMRR suppresses 20 kHz PWM ripple; ±15 V dual-supply capability supports legacy industrial motor drive boards. |
Use Scenario: Converting tachometer pulse amplitude to proportional DC voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Low-pass filter integrator with RC time constant tuned to 10–100 Hz airflow frequency range. Use Value: Stable operation into 100 nF capacitor enables simple RC integration; 125 °C rated junction temperature supports under-hood placement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM321DR | Higher supply current (800 µA typ), lower CMRR (60 dB min), same SOT-23-5 package and pinout. | Less suitable for ultra-low-power battery systems; acceptable where 3.5 V output swing is not required. | Select LM321DR only if higher drive strength (60 mA sink) is needed and power budget permits +60% ICC increase. |
| TLV2461CDBVR | Rail-to-rail input/output, 1.2 MHz GBW, 650 µA ICC, but requires ≥2.7 V supply - incompatible below 2.7 V. | Better for precision low-voltage systems (e.g., 3.3 V only), but cannot replace TS321IDBVTE4 in 3 V–5 V wide-range designs. | Choose TLV2461CDBVR when RRO and >1 MHz bandwidth are mandatory, and supply is fixed at 3.3 V with tight headroom. |
Compared with LM321DR and TLV2461CDBVR, TS321IDBVTE4 uniquely balances ultra-low ICC (500 µA), wide 3–30 V operation, and robust 85 dB CMRR - making it optimal for cost-sensitive industrial controls requiring extended supply flexibility and thermal resilience.
Availability
TS321IDBVTE4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable consumer electronics, HVAC control modules, and white goods motor monitoring requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for TS321IDBVTE4 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 connectivity technologies, with decades of op-amp design heritage and broad industrial qualification.
The TS321IDBVTE4 belongs to TI's general-purpose bipolar op-amp family, engineered for cost-effective, reliable signal conditioning in space-constrained, wide-supply industrial and consumer applications - not for precision, high-speed, or rail-to-rail use cases.
FAQ
What is the maximum operating temperature for TS321IDBVTE4?
The TS321IDBVTE4 is rated for operation from –40 °C to +125 °C ambient temperature. Its junction temperature must not exceed 150 °C, and thermal design must account for its 206 °C/W junction-to-ambient resistance in the SOT-23-5 package. Derating is required above 85 °C ambient in high-power-density layouts.
Does TS321IDBVTE4 support rail-to-rail input or output?
TS321IDBVTE4 does not support rail-to-rail input - its common-mode range extends from 0 V to VCC+ – 1.5 V. Output swing reaches 0 V to 3.5 V minimum at 5 V supply, so it is not rail-to-rail output either. For true RRO operation, consider alternatives like TLV2461CDBVR, though supply range is narrower.
Can TS321IDBVTE4 drive a 10 kΩ load at 5 V supply?
Yes. TS321IDBVTE4 delivers 3.5 V minimum output at 5 V supply into 2 kΩ, and its output voltage improves with lighter loads. At 10 kΩ, output swing exceeds 3.8 V (typical), well within specification. The device sources up to 40 mA and sinks up to 60 mA, far exceeding 0.5 mA required for 10 kΩ.
Is TS321IDBVTE4 pin-compatible with other SOT-23-5 op-amps?
TS321IDBVTE4 uses standard SOT-23-5 pinout (VCC–, IN+, IN–, VCC+, OUT), matching LM321DR and many TI single op-amps. However, pin 1 is NC - unlike some variants where pin 1 is shutdown or offset null. Always verify pin function per datasheet before substitution.
What is the typical input offset voltage for TS321IDBVTE4?
The typical input offset voltage for TS321IDBVTE4 is 4 mV at 25 °C, with a maximum of 5 mV across the full –40 °C to +125 °C temperature range. This value is measured with RS = 0 Ω and supply between 5 V and 30 V, and directly impacts DC accuracy in precision gain stages or sensor bridges.
TS321IDBVTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 800 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TS321IDBVTE4 FAQ
1.How can I place an order for TS321IDBVTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TS321IDBVTE4 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 TS321IDBVTE4 reliable?
The price and inventory of TS321IDBVTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS321IDBVTE4 is usually 5 days.
3.What payment methods are accepted for TS321IDBVTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS321IDBVTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS321IDBVTE4?
TS321IDBVTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS321IDBVTE4 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 TS321IDBVTE4?
For technical support, including TS321IDBVTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS321IDBVTE4 requirements.
6.How does Aetrix verify that TS321IDBVTE4 is sourced from the original manufacturer or authorized distributors?
All TS321IDBVTE4 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 TS321IDBVTE4 meets industry standards.
7.What is the process for return or replacement of TS321IDBVTE4?
All TS321IDBVTE4 units undergo pre-shipment inspection (PSI). If there is an issue with TS321IDBVTE4, 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 TS321IDBVTE4 part is unused and in its original packaging.
Return procedure for TS321IDBVTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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