1 Features

• Vendor item drawing (VID) V62/24615

• Radiation tolerant:

– TID characterized up to 50krad(Si)

– TID RHA/RLAT assurance up to 30krad(Si)

– SEL immune to LET: 43MeV×cm2/mg at 125°C

– SEE characterized to LET: 43MeV×cm2/mg

– SEFI characterized to LET: 43MeV×cm2/mg

• I2C interface (SMBusTM compatible)

– Pin-programmable address

– 12-bit resolution: 0.0625°C (LSB)

• Temperature accuracy and range:

– Local (on-chip) temp accuracy: ±2.0°C (Max)

– Remote junction temp accuracy: ±1.5°C (Max)

– Remote range tested to: –64°C to 191°C

• Small-size package: VSSOP-10, 4.9mm × 3.0mm

• QMLP version: TMP9R01-SP (pre-release)

• QMLV version: TMP461-SP

• Integrated calibration/protection features:

– η-factor and offset correction

– Series resistance cancellation

– Remote BJT/diode fault detection

– Programmable digital filter

• Wide operating range, low power:

– Voltage supply range: 1.7V to 3.6V

– I/O voltages: 1.8V, 2.5V, and 3.3V

– Standby/shutdown IQ: 15μA/3μA

• Space enhanced plastic (Space EP):

– Meets NASA’s ASTM E595 outgassing spec

– Military temperature range (-55°C to 125°C)

– Au bondwire and NiPdAu lead finish

– One fabrication, assembly, and test site

– Extended product life cycle

– Wafer lot traceability

– Extended product change notification

2 Applications

• Space-grade FPGA, ADCs, DACs, and ASIC

integrated junction temperature sensing

• Space:

– Communications payload

– Radar imaging payload

– Optical imaging payload

– On-board computer (OBC)

– Command & data handling (C&DH)

3 Description

The TMP9R01-SEP device is a radiation-tolerant,

high-accuracy, low-power remote and local

temperature sensor that integrates a 12‑bit ADC,

bias currents, and on‑chip calibration circuitry for

temperature sensing. This device is available in a 10-

pin VSSOP plastic-encapsulated package. By forcing

a bias current through an external BJT transistor,

or the diode/junction integrated in an FPGA, ADC,

or ASIC, the device digitizes the resulting ΔVBE

and directly reports with a 0.0625°C temperature

resolution. The second on‑chip sensor measures local

temperature, enabling on-board temperature sensing.

The TMP9R01-SEP device incorporates multiple

calibration and protection features, including series

resistance cancellation, programmable non‑ideality

factor (η-Factor), offset correction, and programmable

digital filter. The user can set high and low

temperature limits that drive the ALERT output for

over- and under- temperature thermal protection.

The I2C/SMBus serial interface accepts up to nine

different pin-programmable addresses on the same

I2C bus. The TMP9R01-SEP device is also available

in a QMLV (TMP461-SP) and QMLP (TMP9R01-SP,

prerelease) versions, with higher radiation specs.

The TMP9R01-SEP device is ideal for multi‑location

spacecraft housekeeping, satellite telemetry, avionics,

and other high‑reliability industrial or medical designs

that require precise temperature sensing and radiation

tolerance.