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Texas Instruments INA592IDT
- Part No.:
- INA592IDT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
INA592IDT.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,960
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Product details
Overview
INA592IDT from Texas Instruments is a high-precision, wide-bandwidth e-trim™ difference amplifier with fixed gain options of G = 1/2 or G = 2, 40 µV maximum offset voltage, ±2 µV/°C max drift, and 2 MHz GBW. It operates from single (4.5 V to 36 V) or dual (±2.25 V to ±18 V) supplies and delivers robust performance in high-voltage industrial current/voltage sensing applications.
For engineers reviewing the INA592IDT datasheet, INA592IDT pinout, INA592IDT application, or INA592IDT equivalent, this device supports precision differential signal conditioning in servo drives, power supply monitoring, semiconductor test equipment, and condition monitoring modules where low drift, high CMRR, and capacitive load drive up to 500 pF are critical.
Technical Context
The INA592IDT integrates a precision op amp with a laser-trimmed, matched resistor network enabling accurate, temperature-stable gain without external components. Its internal topology supports two distinct configurations: G = 1/2 (differential input → scaled output) and G = 2 (reference-based amplification), each with dedicated pin assignments and validated CMRR > 82 dB over –40°C to +125°C.
It features rail-to-rail output swing (within 130–220 mV of rails), 18 V/µs slew rate, and direct access to internal op amp terminals (+INOP/–INOP) in the 10-pin VSON package-enabling flexible feedback and configuration beyond standard difference amplifier use cases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Options | G = 0.5 V/V or 2 V/V - factory-configured, no external resistors required |
| Max Offset Voltage | ±40 µV at G = 1/2 - enables sub-0.01% error in 10-V full-scale measurements |
| Offset Drift | ±2 µV/°C max - ensures < 160 µV total drift across –40°C to +125°C range |
| CMRR | 88 dB min at G = 1/2 - rejects common-mode interference in noisy motor drive environments |
| Small-Signal Bandwidth | 2 MHz at G = 1/2 - supports fast transient response in closed-loop position feedback |
| Capacitive Load Drive | 500 pF - allows direct connection to ADC input filters or long PCB traces without instability |
| Supply Range | Single: 4.5 V to 36 V; Dual: ±2.25 V to ±18 V - compatible with industrial 24-V and ±15-V rails |
Pinout & Package
INA592IDT is packaged in an 8-pin SOIC (D) with body size 4.90 mm × 3.91 mm. Pin functions are defined per TI SBOS914F Rev F (April 2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Input | 12-kΩ resistor to op amp noninverting terminal; positive input in G = 1/2 mode |
| –IN | Input | 12-kΩ resistor to op amp inverting terminal; negative input in G = 1/2 mode |
| REF | Input | 6-kΩ resistor to op amp noninverting terminal; reference node in G = 1/2 mode |
| SENSE | Input | 6-kΩ resistor to op amp inverting terminal; connects to output in G = 1/2 mode |
| V± | Power | Supply pins: V+ (pin 7), V– (pin 4); supports single or dual supply operation |
| OUT | Output | Amplified differential output; rail-to-rail capable with 18 V/µs slew rate |
| NC | No Connect | Pin 8 - unconnected internally; may be left floating or grounded for EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ technology | Laser-trimmed resistor network ensures initial gain error ≤ ±0.03% and stable CMRR over temperature |
| Wide common-mode input range | Extends to V– (negative rail), enabling single-supply operation with ground-referenced inputs |
| High capacitive load drive | Stable with up to 500 pF load - eliminates need for output isolation resistors in ADC interface designs |
| Low quiescent current | 1.1 mA per amplifier - suitable for power-constrained industrial modules and battery-backed systems |
| Specified operation to +125°C | Validated electrical performance across –40°C to +125°C - qualified for under-hood and motor-control environments |
Applications
| AC Drive Position Feedback | Servo Drive Position Feedback |
|---|---|
Use Scenario: Monitoring motor phase currents in variable-frequency drives to compute rotor position via field-oriented control. IC Role / Device Role / Timing Role: Difference amplifier conditioning shunt voltage signals with high common-mode rejection in presence of PWM noise. Use Value: 88 dB CMRR and 2 MHz bandwidth enable accurate current reconstruction during fast switching transients. |
Use Scenario: Closed-loop current sensing in precision servo amplifiers for robotics and CNC motion control. IC Role / Device Role / Timing Role: High-speed, low-drift differential amplifier converting bidirectional shunt voltage into clean analog feedback signal. Use Value: ±40 µV offset and ±2 µV/°C drift ensure < 0.02% gain error stability across operating temperature range. |
| Condition Monitoring Module | Power Supply Module |
Use Scenario: Real-time voltage and current measurement in predictive maintenance systems for industrial motors and transformers. IC Role / Device Role / Timing Role: Precision difference amplifier isolating measured signals from high common-mode bus voltages up to 36 V. Use Value: Single-supply 4.5–36 V operation and rail-to-rail output simplify integration with isolated microcontrollers and sigma-delta ADCs. |
Use Scenario: Output current/voltage sensing in programmable DC power supplies and lab bench instruments. IC Role / Device Role / Timing Role: Stable gain amplifier providing accurate, low-noise feedback to regulation loop controllers. Use Value: 18 nV/√Hz noise density and 0.03% max gain error support < 16-bit measurement accuracy at 1 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar difference amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA137UA | G = 0.5 or 2 V/V; higher 100 µV max offset; 1 MHz BW at G = 2; no e-trim™ | Lower precision; suited for audio-grade line receivers, not high-accuracy industrial sensing | Select when cost sensitivity outweighs offset/drift requirements and bandwidth needs are ≤1 MHz |
| INA849IDR | Instrumentation amplifier; G = 1–1000 via external RG; 25 µV max offset; 10 MHz GBW | Requires external gain-setting resistor; broader gain flexibility but higher IQ (1.7 mA) | Choose when programmable gain and higher bandwidth are needed, accepting added component count and layout complexity |
Compared with INA137UA and INA849IDR, the INA592IDT offers superior offset stability and integrated resistor matching for fixed-gain industrial sensing, while avoiding external components and delivering optimal trade-offs between speed, precision, and power in 24-V system monitoring.
Availability
INA592IDT is available at Aetrix Electronics and suitable for AC drive position feedback, servo drive position feedback, and condition monitoring modules requiring stable component supply and long-term industrial qualification.
Supply support for INA592IDT 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 precision signal chain solutions.
The INA592IDT belongs to TI's e-trim™ precision amplifier product line, designed specifically for high-reliability industrial current/voltage sensing where laser-trimmed resistor networks eliminate gain drift and simplify system-level calibration.
FAQ
What gain configurations does the INA592IDT support?
The INA592IDT supports two factory-configured gain settings: G = 1/2 and G = 2. These are implemented using an internal precision resistor network and require no external components. The selected gain determines pin functionality-for example, REF serves as reference in G = 1/2 mode but as positive input in G = 2 mode. Both configurations are fully specified in the INA592IDT datasheet across temperature and supply ranges.
Can the INA592IDT operate from a single 5-V supply?
Yes, the INA592IDT operates from a single supply as low as 4.5 V. With a 5-V rail, it maintains full functionality including rail-to-rail output swing (within 130–220 mV of rails), 88 dB CMRR, and 2 MHz bandwidth at G = 1/2. Input common-mode range extends to the negative rail, allowing ground-referenced differential inputs-ideal for low-voltage IoT sensor nodes and portable test equipment using the INA592IDT.
How does the INA592IDT handle capacitive loads?
The INA592IDT is characterized to drive up to 500 pF capacitively without requiring external isolation resistors or compensation. This capability is verified across all operating conditions and enables direct connection to ADC input filters, long PCB traces, or scope probes. Stability is maintained due to internal compensation optimized for the integrated resistor network-making the INA592IDT especially robust in mixed-signal industrial data acquisition systems.
Is the INA592IDT pin-compatible with other TI difference amplifiers like the INA159?
No, the INA592IDT is not pin-compatible with the INA159 or INA132. It uses a unique 8-pin SOIC pinout optimized for its dual-gain architecture and internal resistor routing. Pin assignments-including dedicated SENSE, REF, and ±IN terminals-differ fundamentally from legacy devices. Migration requires PCB layout revision and validation of gain configuration logic, as the INA592IDT's pin roles change based on selected gain mode.
What is the maximum operating temperature for the INA592IDT?
The INA592IDT is fully specified from –40°C to +125°C ambient temperature. All key parameters-including offset voltage (±40 µV max), CMRR (≥82 dB), and gain error (±0.03% max)-are guaranteed across this extended industrial temperature range. Thermal metrics (e.g., RθJA = 115°C/W for SOIC) confirm reliable operation in enclosed enclosures or near heat-generating components when used per recommended PCB layout guidelines in the INA592IDT datasheet.
INA592IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 18V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 2 MHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 28 µV
- Current - Supply:
- 1.1mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
INA592IDT FAQ
1.How can I place an order for INA592IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA592IDT 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 INA592IDT reliable?
The price and inventory of INA592IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA592IDT is usually 5 days.
3.What payment methods are accepted for INA592IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA592IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA592IDT?
INA592IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA592IDT 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 INA592IDT?
For technical support, including INA592IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA592IDT requirements.
6.How does Aetrix verify that INA592IDT is sourced from the original manufacturer or authorized distributors?
All INA592IDT 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 INA592IDT meets industry standards.
7.What is the process for return or replacement of INA592IDT?
All INA592IDT units undergo pre-shipment inspection (PSI). If there is an issue with INA592IDT, 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 INA592IDT part is unused and in its original packaging.
Return procedure for INA592IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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