Analog Devices Inc. LTC6994MPS6-1#TRMPBF

Overview

LTC6994MPS6-1#TRMPBF from Analog Devices is a programmable monostable delay block (TimerBlox family) that delays rising-edge transitions only, with 1µs–33.6s range, ±2.3% max error for delays >512µs, 2.25V–5.5V supply, and –55°C to 125°C operation. It serves as a precision edge-triggered pulse qualifier in high-vibration industrial sensors and automotive switch debouncing circuits.

For engineers reviewing the LTC6994MPS6-1#TRMPBF datasheet, LTC6994MPS6-1#TRMPBF pinout, LTC6994MPS6-1#TRMPBF application, or LTC6994MPS6-1#TRMPBF equivalent, key selection criteria include guaranteed –55°C to 125°C operation, TSOT-23 package compatibility, single-resistor RSET programming, DIV pin voltage-based NDIV selection, and rising-edge-only delay functionality per LTC6994-1 architecture.

Technical Context

The LTC6994MPS6-1#TRMPBF implements a master oscillator with t_MASTER = 1µs × R_SET/50kΩ, feeding an 8-step programmable divider (NDIV = 1, 8, 64, ..., 2²¹) to achieve its full delay range. Its internal 4-bit A/D converter reads V_DIV to set both NDIV and POL bit, where POL = 0 configures rising-edge delay only.

Delay accuracy is governed by R_SET tolerance and inherent device error (±2.3% for NDIV ≥ 512), while V_SET is regulated to 1.00V ±30mV to decouple delay from supply variation. The device halts oscillator operation when I_SET < 500nA, enabling ultra-low-power idle states.

Key Specifications

Pinout & Package

Package: 6-Lead Plastic TSOT-23 (ThinSOT™), 1mm profile, exposed pad optional, footprint compatible with industry-standard SOT-23 layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable delay applications.

Compared with LTC6994IS6-1#TRPBF and MAX6816EUT+T, the LTC6994MPS6-1#TRMPBF uniquely delivers AEC-Q100 MP-grade reliability, full 1µs–33.6s programmability via R_SET, and guaranteed operation down to –55°C-making it the sole option for mission-critical automotive and aerospace timing functions.

Availability

LTC6994MPS6-1#TRMPBF is available at Aetrix Electronics and suitable for automotive switch debouncing, industrial sensor noise filtering, and portable medical device timing requiring stable component supply across extreme temperature ranges.

Supply support for LTC6994MPS6-1#TRMPBF 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The TimerBlox family-including LTC6994MPS6-1#TRMPBF-is designed for precision timing in space-constrained, low-power, and high-reliability applications where traditional microcontroller-based delays are impractical.

FAQ

What is the minimum programmable delay of the LTC6994MPS6-1#TRMPBF?

The LTC6994MPS6-1#TRMPBF achieves a minimum delay of 1µs when configured with R_SET = 50kΩ and NDIV = 1. This value is guaranteed across the full –55°C to 125°C operating range, with ±5.1% max error for delays between 1µs and 8µs. The device uses a master oscillator with t_MASTER = 1µs × R_SET/50kΩ, making 1µs the fundamental timing quantum for the LTC6994MPS6-1#TRMPBF.

How does the LTC6994MPS6-1#TRMPBF differ from the LTC6994MPS6-2#TRMPBF?

The LTC6994MPS6-1#TRMPBF delays only rising-edge transitions on the IN pin, while the LTC6994MPS6-2#TRMPBF delays both rising and falling edges-and adds output inversion capability via the POL bit. Both share identical packaging, temperature rating (–55°C to 125°C), supply range, and R_SET/DIV programming. The LTC6994MPS6-1#TRMPBF is selected when edge-specific qualification (e.g., keypress detection) is required, whereas the -2 variant suits bidirectional pulse shaping or minimum-pulse-width generation.

Can the LTC6994MPS6-1#TRMPBF operate from a 2.25V supply?

Yes, the LTC6994MPS6-1#TRMPBF is fully specified for 2.25V to 5.5V single-supply operation. At 2.25V, it delivers ±20mA output drive, 65µA typical supply current (with R_SET = 800kΩ), and maintains all timing specifications including 1µs minimum delay. Propagation delay increases to 24ns, and VOH/VOL remain within rail-to-rail compliance-enabling direct interface with 2.25V logic families without level shifters.

What is the purpose of the DIV pin on the LTC6994MPS6-1#TRMPBF?

The DIV pin on the LTC6994MPS6-1#TRMPBF is a 4-bit analog input that sets both the divider ratio (NDIV = 1 to 2²¹) and the polarity mode (POL bit). It accepts a voltage V_DIV referenced to V+, with V_DIV/V+ ratios from 0.03125 to 0.96875 corresponding to DIVCODE values 0–15. For LTC6994MPS6-1#TRMPBF, POL = 0 selects rising-edge delay; the pin must be driven with ≤100pF capacitance and ≤500kΩ source impedance to ensure accurate A/D conversion and fast settling.

Is the LTC6994MPS6-1#TRMPBF AEC-Q100 qualified?

Yes, the LTC6994MPS6-1#TRMPBF is AEC-Q100 qualified for automotive applications under Grade MP (–55°C to 125°C). This qualification includes stress testing for temperature cycling, humidity, mechanical shock, and electrical robustness per AEC-Q100 Rev H standards. The part marking "LTFCV" and ordering suffix "#TRMPBF" explicitly denote the automotive-qualified variant, distinguishing it from commercial-grade versions like LTC6994CS6-1#TRPBF.