Analog Devices Inc. LT1215CS8#TRPBF

Overview

LT1215CS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, single-supply precision operational amplifier featuring 23MHz gain-bandwidth product, 50V/µs slew rate, and rail-to-rail output swing to ground while sinking current. It operates from 2.5V to 36V total supply, delivers ±30mA output drive, and maintains ≤450µV input offset voltage over –40°C to 85°C - enabling high-accuracy signal conditioning in battery-powered instrumentation and DAC I/V conversion.

For engineers reviewing the LT1215CS8#TRPBF datasheet, LT1215CS8#TRPBF pinout, LT1215CS8#TRPBF application, or LT1215CS8#TRPBF equivalent, this page provides verified package mapping (SO-8), confirmed DC precision specs (VOS, IB, CMRR), thermal resistance (θJA = 150°C/W), and real-world settling performance (250ns to 0.01% on 2V step) - all critical for low-voltage, high-speed analog design validation.

Technical Context

The LT1215CS8#TRPBF employs a proprietary bipolar input stage with complementary NPN/PNP transistors, enabling true single-supply operation with input common-mode range extending to V– (ground) and output swing to V– while sourcing/sinking load current. Its internal compensation ensures stable unity-gain operation with ≥60° phase margin across 2.5V–36V supplies and temperatures from –40°C to 85°C.

It integrates matched input transistor pairs for low offset drift (≤10µV/°C max), low noise (12.5nV/√Hz at 1kHz), and high open-loop gain (≥1000V/mV), making it suitable for precision closed-loop configurations requiring <0.01% settling accuracy without external trimming.

Key Specifications

Pinout & Package

LT1215CS8#TRPBF is housed in an 8-lead plastic SOIC (SO-8) package with standard JEDEC MS-012AC footprint, 1.27mm pitch, and 4.9mm × 6.0mm body size. Thermal resistance is θJA = 150°C/W in still air.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op amp applications.

Compared with OP2177ARZ-REEL7 and AD8628ARZ-REEL7, LT1215CS8#TRPBF uniquely balances high speed (23MHz/50V/µs), wide supply (2.5–36V), and precision (450µV VOS) - making it irreplaceable in mixed-signal systems demanding both bandwidth and DC accuracy across varying power domains.

Availability

LT1215CS8#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, precision DAC current-to-voltage conversion, and active filter design requiring stable component supply across industrial temperature ranges.

Supply support for LT1215CS8#TRPBF 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

Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LT1215 series belongs to ADI's legacy Linear Technology precision op amp portfolio, engineered for applications demanding simultaneous high speed, low offset, and single-supply operability - especially in data acquisition, test equipment, and sensor interface circuits.

FAQ

What is the maximum junction temperature for LT1215CS8#TRPBF?

The maximum junction temperature for LT1215CS8#TRPBF is 150°C. This is defined by its plastic SO-8 package rating. Thermal calculations must use θJA = 150°C/W (still air), and ambient temperature must be derated accordingly - for example, at ±15V with 500Ω load, max ambient is 23.4°C to stay within limit. Always verify TJ using TJ = TA + (PD × θJA) under worst-case operating conditions for LT1215CS8#TRPBF.

Does LT1215CS8#TRPBF support rail-to-rail input operation?

No, LT1215CS8#TRPBF does not support rail-to-rail input. Its input common-mode range extends to V– (ground) and up to V+ – 1.5V at 25°C. For full precision, the recommended common-mode range is V– to V+ – 2V. Inputs driven below V– by >700mV increase bias current significantly due to internal protection diodes, though phase reversal is avoided. This behavior is documented in the "Inputs" section of the LT1215/LT1216 datasheet for LT1215CS8#TRPBF.

Can LT1215CS8#TRPBF drive a 500Ω load at ±10V output swing?

Yes, LT1215CS8#TRPBF can drive a 500Ω load with ±10V output swing when supplied with ±15V rails. Its guaranteed minimum output current is ±30mA, sufficient for ±10V across 500Ω (±20mA). However, power dissipation rises significantly: at 125°C ambient, worst-case dissipation reaches 0.422W per amplifier, requiring careful thermal management. Derating or lowering supply voltage (e.g., ±12V) is advised for sustained operation. This capability is confirmed in the "Maximum Output Voltage Swing" and "IO" specifications for LT1215CS8#TRPBF.

What is the typical settling time of LT1215CS8#TRPBF to 0.01% for a 10V step?

The typical settling time of LT1215CS8#TRPBF to 0.01% for a 10V step is 480ns under ±15V supply conditions with AV = 1. This value is measured from 10% to 90% of final value and reflects the device's high slew rate (50V/µs) and optimized internal compensation. At 5V single supply, the same 10V step is not possible, but a 4.3V step settles in 480ns - consistent with the 0.01% specification across all rated supply voltages for LT1215CS8#TRPBF.

Is LT1215CS8#TRPBF pin-compatible with other SO-8 dual op amps like LM358?

No, LT1215CS8#TRPBF is not pin-compatible with LM358 or generic SO-8 dual op amps. Its pinout follows Linear Technology's standard dual op amp layout (OUT A, –IN A, +IN A, V–, V+, OUT B, –IN B, +IN B), whereas LM358 uses OUT A, –IN A, +IN A, V+, OUT B, –IN B, +IN B, V–. Swapping them without PCB revision will cause incorrect power connection and functional failure. Always verify pin mapping using the "PACKAGE/ORDER INFORMATION" diagram specific to LT1215CS8#TRPBF.