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Texas Instruments INA152EA/250
- Part No.:
- INA152EA/250
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA152EA/250.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:680
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Product details
Overview
INA152EA/250 from Texas Instruments is a precision unity-gain difference amplifier in MSOP-8 package, featuring ±250µV input offset voltage, 94dB common-mode rejection, and rail-to-rail output swing within 50mV of either supply rail. It integrates laser-trimmed 40kΩ resistor network with CMOS op amp for high accuracy in differential signal conditioning for battery-powered instrumentation and current sensing.
For engineers reviewing the INA152EA/250 datasheet, INA152EA/250 pinout, INA152EA/250 application, or INA152EA/250 equivalent, key selection criteria include guaranteed gain error (±0.01%), low offset drift (±3µV/°C), wide supply range (±1.35V to ±10V or +2.7V to +20V), and operation across –40°C to +85°C industrial temperature range.
Technical Context
The INA152EA/250 implements a fixed-gain (G = 1) difference amplifier topology using an internal precision resistor network (four 40kΩ elements) ratio-matched via laser trimming. Its CMOS input stage enables rail-to-rail input common-mode range extending beyond supply rails (e.g., –2.5V to +5.5V at VS = +5V) and output swing to within 50mV of either rail.
Common-mode rejection is maintained over frequency and temperature by matched TCR of on-chip resistors; PSRR exceeds 90dB up to 10kHz. The device operates with no external gain-setting components and supports reference pin biasing for output level shifting or offset nulling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | Unity (G = 1) - fixed, laser-trimmed resistor network eliminates external component dependency. |
| Input Offset Voltage | ±250µV max - ensures <0.5mV absolute error in 2V full-scale differential measurement. |
| CMR | 94dB min - rejects >99.998% of common-mode interference at DC, critical for noisy industrial environments. |
| Supply Range | ±1.35V to ±10V dual or +2.7V to +20V single - supports low-voltage battery systems and higher-voltage industrial rails. |
| Output Swing | To within 50mV of either rail - enables full utilization of ADC input range in single-supply data acquisition. |
| Quiescent Current | 650µA max - allows continuous operation in always-on sensor nodes with multi-year battery life. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial and automotive under-hood instrumentation applications. |
Pinout & Package
INA152EA/250 is housed in an 8-pin VSSOP (DGK) package - ultra-thin, surface-mount, 3mm × 3mm footprint with 0.65mm pitch - optimized for space-constrained PCB layouts in portable and modular instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Ref) | Reference Input | Bias point for output level shift; connecting to mid-supply enables true zero-centered output in single-supply systems. |
| 2 (VIN–) | Inverting Input | Differential input node; requires matched source impedance (<250Ω) to preserve CMR >90dB. |
| 3 (VIN+) | Non-inverting Input | Differential input node; paired with Pin 2 to define measured voltage difference. |
| 4 (V–) | Negative Supply | Connects to ground (single-supply) or negative rail (dual-supply); sets lower output limit. |
| 5 (NC) | No Internal Connection | Unbonded pad - must be left floating or tied to ground per layout best practice; no electrical function. |
| 6 (VO) | Output | Amplified difference (VIN+ – VIN–) referenced to Ref pin; drives 10kΩ load with <0.35V headroom. |
| 7 (V+) | Positive Supply | Connects to main positive rail; supplies internal op amp and resistor network. |
| 8 (Sense) | Internal Node Monitor | Not user-accessible; connects to internal resistor junction - no external connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed resistor network | Four 40kΩ elements with ratio match <0.01% - guarantees initial gain error ≤±0.01% without calibration. |
| Rail-to-rail input common-mode range | Extends to 2×(V–) and 2×(V+)–2V - enables direct measurement of signals beyond supply rails (e.g., shunt voltages in high-side current sensing). |
| Low offset drift | ±3µV/°C max - limits thermal-induced error to <0.3mV over 100°C ambient swing, critical for uncooled field instruments. |
| High PSRR & CMRR tracking | PSRR >90dB and CMRR >94dB maintained from DC to 10kHz - preserves signal integrity in mixed-signal systems with switching regulators. |
| Single- or dual-supply operation | Validated at +5V and ±10V - simplifies design reuse across portable (3.3V/5V) and industrial (±5V/±10V) platforms. |
Applications
| Battery-Powered Instrumentation | High-Side Current Sensing |
|---|---|
|
Use Scenario: Portable multimeter measuring µA–mA currents via shunt resistor while operating from coin-cell or Li-ion battery. IC Role / Device Role / Timing Role: Difference amplifier capturing differential voltage across shunt, rejecting common-mode battery voltage and noise. Use Value: 650µA quiescent current extends battery life; rail-to-rail input accommodates shunt placed between load and battery positive terminal. |
Use Scenario: Motor controller monitoring phase current using high-side shunt to avoid ground loop interference. IC Role / Device Role / Timing Role: Precision difference amplifier isolating small shunt voltage (≤100mV) from high common-mode bus voltage (up to 48V). Use Value: Input common-mode range to 2×(V–) allows direct interface to 48V bus with V– = GND; 94dB CMR suppresses PWM switching noise. |
| Precision Summing Amplifier | Synchronous Demodulator Front-End |
|
Use Scenario: Industrial sensor fusion node combining outputs from multiple RTDs or strain gauges into single conditioned signal. IC Role / Device Role / Timing Role: Unity-gain difference amplifier configured as summing node with reference-biased output for level alignment. Use Value: Laser-trimmed resistors ensure gain matching across channels; ±250µV offset minimizes baseline error in multi-sensor averaging. |
Use Scenario: Lock-in amplifier extracting weak AC-coupled sensor signals buried in 60Hz mains noise. IC Role / Device Role / Timing Role: Differential front-end amplifier rejecting common-mode interference before synchronous rectification stage. Use Value: 94dB CMR at 60Hz and low 1/f noise (2.4µVp-p, 0.1–10Hz) maximize dynamic range for sub-µV signal recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar difference amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA149IDR | Higher CMR (120dB), wider supply (±2.5V to ±18V), but larger SO-8 package and 1.1mA IQ. | Better suited for high-noise factory-floor PLC analog inputs where ultimate CMR outweighs power budget. | Select INA149IDR when >110dB CMR is required and board area/power allow larger footprint and higher current. |
| AD8271ARMZ | Same MSOP-8, lower offset (±100µV), but narrower input CM range (to within 1.2V of rails) and higher cost. | Ideal for precision medical sensors requiring lowest possible offset, where rail extension is not needed. | Choose AD8271ARMZ only if offset <±150µV is mandatory and input signals remain strictly within supply rails. |
Compared with INA152EA/250, INA149IDR delivers superior noise immunity at the expense of power and size, while AD8271ARMZ trades rail extension capability for tighter offset spec - making INA152EA/250 the optimal balance of rail-to-rail flexibility, low power, and industrial-grade accuracy in compact MSOP-8.
Availability
INA152EA/250 is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-side current sensing, precision summing amplifiers, and synchronous demodulator front-ends requiring stable component supply across long production lifecycles.
Supply support for INA152EA/250 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 INA152 belongs to TI's precision difference amplifier product line, engineered for high-accuracy differential measurement in resource-constrained industrial and portable systems where size, power, and rail-to-rail performance are critical.
FAQ
What is the maximum input common-mode voltage for INA152EA/250 when operating from a +5V supply?
At VS = +5V, the INA152EA/250 supports an input common-mode voltage range of –2.5V to +5.5V (with VIN+ – VIN– = 0V). This extends beyond both supply rails, enabling direct measurement of signals such as high-side shunt voltages or bipolar transducer outputs without level-shifting circuitry. The specification is validated per SBOS184 datasheet Section "INPUT VOLTAGE RANGE".
Can INA152EA/250 be used in a single-supply configuration with the reference pin biased to VS/2?
Yes - the Ref pin (Pin 1) of INA152EA/250 is designed to accept an external bias voltage. When tied to VS/2 in a +5V system, it centers the output around 2.5V, enabling full-scale differential measurements with rail-to-rail output swing from 0.05V to 4.95V. Source impedance to Ref must remain <10Ω to maintain CMR >90dB, as specified in the Applications Information section of the INA152EA/250 datasheet.
What is the gain error temperature coefficient of INA152EA/250, and how does it affect system calibration?
The INA152EA/250 has a gain error temperature coefficient of ±1ppm/°C typical (±10ppm/°C max), meaning gain drift contributes less than 0.001% error per °C change. Over a –40°C to +85°C range, total drift remains <0.125%, eliminating need for system-level gain recalibration in most industrial applications. This value is confirmed in the "GAIN" table of the SBOS184 datasheet under "Gain Temperature Drift Coefficient".
Does INA152EA/250 require external decoupling capacitors, and if so, what values are recommended?
Yes - decoupling capacitors are strongly recommended for INA152EA/250, especially with noisy or high-impedance supplies. TI recommends placing 1µF ceramic capacitors close to Pins 4 (V–) and 7 (V+), as shown in Figure 1 of the SBOS184 datasheet. These minimize supply-induced errors and improve PSRR above 10kHz. Additional 0.1µF capacitors may be added in parallel for high-frequency noise suppression.
Is the Sense pin (Pin 8) of INA152EA/250 intended for external connection?
No - the Sense pin (Pin 8) of INA152EA/250 is an internal test node with no user-accessible function. It connects to an internal resistor junction and must not be externally wired. Per the datasheet pin configuration diagram and notes, this pin is reserved for factory testing and has no defined electrical behavior in application circuits. Leaving it unconnected is the correct implementation for INA152EA/250.
INA152EA/250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 800 kHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 500µA
- Current - Output / Channel:
- 12 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 20 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
INA152EA/250 FAQ
1.How can I place an order for INA152EA/250 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA152EA/250 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 INA152EA/250 reliable?
The price and inventory of INA152EA/250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA152EA/250 is usually 5 days.
3.What payment methods are accepted for INA152EA/250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA152EA/250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA152EA/250?
INA152EA/250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA152EA/250 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 INA152EA/250?
For technical support, including INA152EA/250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA152EA/250 requirements.
6.How does Aetrix verify that INA152EA/250 is sourced from the original manufacturer or authorized distributors?
All INA152EA/250 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 INA152EA/250 meets industry standards.
7.What is the process for return or replacement of INA152EA/250?
All INA152EA/250 units undergo pre-shipment inspection (PSI). If there is an issue with INA152EA/250, 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 INA152EA/250 part is unused and in its original packaging.
Return procedure for INA152EA/250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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