Texas Instruments LM60CIZ/NOPB

Overview

LM60CIZ/NOPB from Texas Instruments is a precision analog bipolar temperature sensor in TO-92 (straight leads) package, delivering linear 6.25 mV/°C output with 424 mV DC offset, ±4°C max accuracy over −40°C to +125°C, 2.7V–10V supply range, and 70 μA max quiescent current (new chip). It enables single-supply negative-temperature sensing in battery-powered thermal monitoring circuits.

For engineers reviewing the LM60CIZ/NOPB datasheet, LM60CIZ/NOPB pinout, LM60CIZ/NOPB application, or LM60CIZ/NOPB equivalent, key selection factors include its calibrated analog output transfer function, low self-heating (≤0.1°C in still air), TO-92 mechanical mounting flexibility, and compatibility with 8-bit ADCs requiring 174–1205 mV input range.

Technical Context

The LM60CIZ/NOPB implements a Class-A emitter-follower output stage, providing low-output-impedance sourcing (≤800 Ω) while sinking <1 μA - enabling direct connection to high-impedance ADC inputs without buffering. Its transfer function VO = (6.25 mV/°C × T °C) + 424 mV is factory-calibrated and stable across the full −40°C to +125°C operating range.

No functional modes or digital control exist: it operates exclusively as a continuous analog voltage source proportional to die temperature. Thermal coupling relies on mechanical attachment of TO-92 leads to the target surface, with junction-to-ambient thermal resistance of 135.9°C/W (new chip) in still air - limiting self-heating error to ≤0.1°C at 70 μA under typical PCB mounting.

Key Specifications

Pinout & Package

LM60CIZ/NOPB uses the TO-92 (LP) 3-pin straight-leads package (4.83 mm × 7.37 mm), optimized for through-hole mounting, mechanical thermal coupling to heatsinks or chassis, and cost-sensitive volume applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-output temperature sensor applications.

Compared with LM60BIZ/NOPB, the LM60CIZ/NOPB trades 1°C accuracy tolerance for cost optimization in non-critical thermal monitoring; compared with LM60CIM3X/NOPB, it offers mechanical mounting flexibility and lower thermal resistance via TO-92 lead attachment - making it preferable for chassis- or heatsink-mounted applications.

Availability

LM60CIZ/NOPB is available at Aetrix Electronics and suitable for mobile device battery management, industrial power supply thermal protection, and consumer printer thermal regulation requiring stable component supply and long-lifecycle support.

Supply support for LM60CIZ/NOPB 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.

The LM60 product line delivers low-cost, factory-calibrated analog temperature sensors optimized for single-supply systems needing −40°C to +125°C coverage without digital interfaces or external components.

FAQ

What is the guaranteed accuracy specification for LM60CIZ/NOPB over its full operating temperature range?

The LM60CIZ/NOPB is specified for ±4°C maximum accuracy over the full −40°C to +125°C temperature range, applicable to the new-chip revision. This value represents total error including initial calibration, linearity, and temperature coefficient drift - verified per TI's production test flow and documented in Section 6.5 of the SNIS119G datasheet. The LM60CIZ/NOPB does not guarantee ±3°C or better performance outside this bound.

Can LM60CIZ/NOPB operate from a single 3.0V lithium-ion battery cell throughout its discharge curve?

Yes, LM60CIZ/NOPB operates continuously from 2.7V to 10V, fully covering the 3.0V–4.2V nominal range of a Li-ion cell and extending down to 2.7V end-of-discharge. At 3.0V supply, its 70 μA max quiescent current draws only 210 μW - ensuring negligible impact on battery runtime. The LM60CIZ/NOPB maintains full accuracy and output linearity across this entire supply range per Section 6.3 and 6.5 specifications.

How is thermal self-heating managed in LM60CIZ/NOPB, and what is its worst-case contribution to measurement error?

LM60CIZ/NOPB limits self-heating via 70 μA max quiescent current and optimized TO-92 thermal design. In still air with standard PCB mounting, self-heating is ≤0.1°C - calculated from (70 μA × 3.3V) × 135.9°C/W = 0.031°C, well within the ±4°C accuracy spec. This value is confirmed in Table 8-2 and Figure 6-7 of the datasheet, and applies directly to the LM60CIZ/NOPB's TO-92 (straight leads) configuration.

Does LM60CIZ/NOPB require external capacitors or filtering for stable operation in noisy environments?

LM60CIZ/NOPB is stable with up to 1 μF output capacitance, forming a 199 Hz low-pass filter with its 800 Ω max output impedance - sufficient for most EMI suppression needs. TI recommends adding a 0.1 μF bypass capacitor from +VS to GND (Section 8.4), but no output capacitor is mandatory. The LM60CIZ/NOPB's emitter-follower output stage inherently rejects supply noise, and its 2.3 mV line regulation (Section 6.5) confirms immunity to typical rail fluctuations.

Is LM60CIZ/NOPB pin-compatible with other LM60 variants such as LM60BIZ/NOPB or LM60CIM3X/NOPB?

LM60CIZ/NOPB shares identical pinout (GND–VOUT–+VS) and electrical behavior with LM60BIZ/NOPB in the same TO-92 straight-leads package - making them direct drop-in replacements. However, LM60CIM3X/NOPB uses SOT-23-3 packaging with different pin order (GND–+VS–VOUT), so it is not pin-compatible; board redesign is required for substitution. All three share the same transfer function and supply requirements.