Product details


Common mode voltage (Max) (V) 65 Common mode voltage (Min) (V) -15 Input offset (+/-) (Max) (uV) 2500 Input offset drift (+/-) (Typ) (uV/C) 2.5 Gain (V/V) 20 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 50 CMRR (Min) (dB) 100 Bandwidth (kHz) 130 Supply voltage (Max) (V) 16 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.9 Number of channels (#) 1 Comparators (#) 0 Features Low-side Capable Rating Space Operating temperature range (C) -55 to 125, 25 to 25 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

CFP (HSL) (HKX) 8 42 mm² 6.485 x 6.475 open-in-new Find other Current sense amplifiers analog output


  • 5962-1821001
    • Radiation Hardness Assured (RHA)
      50 krad(Si) at Low Dose Rate
    • Single Event Latch-up (SEL)
      Immune to 75 MeV-cm2/mg at 125 °C
    • Qualified Over the Military
      Temperature Range (–55 °C to 125 °C)
    • High-Performance 8-Pin
      Ceramic Flat Pack Package (HKX)
  • Wide Common-Mode Range: –15 V to 65 V
  • CMRR: 120 dB
  • Accuracy:
    • ±0.5-mV Offset
    • ±0.2% Gain Error
    • 2.5-µV/°C Offset Drift
    • 50-ppm/°C Gain Drift
  • Bandwidth: Up to 130 kHz
  • Gain: 20 V/V
  • Quiescent Current: 700 µA
  • Power Supply: 2.7 V to 16 V
  • Provision for Filtering
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The INA901-SP is a voltage-output, current-sense amplifier that can sense drops across shunt resistors at common-mode voltages from –15 V to 65 V, independent of the supply voltage. The INA901-SP operates from a single 2.7-V to 16-V supply, drawing 700 µA (typical) of supply current.

The gain of the INA901-SP is 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops. The pinouts readily enable filtering.

The device is specified over the extended operating temperature range of –55 °C to 125 °C and is offered in an 8-pin CFP package.

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Technical documentation

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Type Title Date
* Data sheet INA901-SP Radiation Hardened, –15-V to 65-V Common Mode, Unidirectional Current-Shunt Monitor datasheet (Rev. C) Jun. 30, 2020
* Radiation & reliability report INA901-SP Total Ionizing Dose (TID Report) Sep. 22, 2020
* Radiation & reliability report INA901-SP Neutron Displacement Damage Characterization (Rev. B) Sep. 17, 2020
* SMD INA901-SP SMD INA901-SP SMD 5962-18210 Sep. 08, 2020
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application Jun. 14, 2021
Application note Space-Grade, 50-krad, Overcurrent Event-Detection Circuit Apr. 20, 2021
Technical article How current-sense amplifiers monitor satellite health Feb. 08, 2021
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Technical article Satellite state of health: how space-grade ICs are improving telemetry circuit design Jan. 26, 2021
User guide INA901EVM-CVAL Evaluation Board User's Guide (Rev. A) Jun. 24, 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application note Single-Event Effects Confidence Interval Calculations Jan. 14, 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
E-book Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019
Technical article A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
White paper Overcurrent protection enables more efficient and reliable systems May 16, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
The INA901EVM-CVAL is an evaluation module (EVM) for the INA901-SP space grade current sense monitor. The EVM is user configurable so that a wide range of operating conditions and filtering options can be demonstrated. The board also contains an LM193QML-SP space grade comparator for evaluation as (...)
  • Flexible input connections, including both onboard and external shunt.
  • Ease of access to device pins with test points.
  • On board comparator for out-of-box overcurrent detection.
  • Footprints for optional filtering at the input pins.
document-generic User guide
The UC1843BEVM-CVAL uses the UC1843A-SP, INA901-SP, LM139AQML-SP, and UC1901-SP to create an isolated feedback flyback with current sensing and over current flags. The UC1843A-SP is used to switch the low side MOSFET of the flyback converter and provide voltage and current to the output. The (...)
  • PWM control using UC1843B-SP
  • Over current comparison using LM139AQML-SP
  • Current sensing using INA901-SP

Design tools & simulation

SBOMAS8.ZIP (52 KB) - PSpice Model
SBOMAS9.TSC (4350 KB) - TINA-TI Reference Design
SBOMAT0.ZIP (6 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
SBOR020C.ZIP (568 KB)

Reference designs

20- to 40-VIN, 50-W Space-grade isolated flyback DC/DC over-current protection reference design
TIDA-070002 — Spacecraft bus voltages vary from the well-established 28-V to more than the 100-V typically used in highpower commercial communications satellites, this reference design shows an example for a space-grade 50-W isolated intermediary bus converter, while implementing over-current protection (OCP (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
CFP (HKX) 8 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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