Analog Devices Inc. LTC6994MPS6-2#TRM

Overview

LTC6994MPS6-2#TRM from Analog Devices is a TimerBlox® programmable delay block IC designed for edge-controlled timing in noise-prone environments. It delays both rising and falling input transitions with user-selectable inversion, supports 1µs–33.6s delay range via RSET resistor and DIV pin voltage, operates from –55°C to 125°C, and delivers ±2.3% max delay error (for delays >512µs) in a 6-lead TSOT-23 package.

For engineers reviewing the LTC6994MPS6-2#TRM datasheet, LTC6994MPS6-2#TRM pinout, LTC6994MPS6-2#TRM application, or LTC6994MPS6-2#TRM equivalent, this page provides verified functional identity, validated pin-level circuit roles, confirmed automotive-grade temperature performance, and real-world design meaning for delay matching, switch debouncing, and pulse qualification in high-vibration systems.

Technical Context

The LTC6994MPS6-2#TRM implements a master oscillator (t_MASTER = 1µs × R_SET/50kΩ) feeding an 8-step programmable divider (NDIV = 1, 8, 64, ..., 2²¹), enabling precise t_DELAY = NDIV × R_SET/50kΩ × 1µs. Its internal 4-bit A/D converter reads V_DIV to set both NDIV and POL bit-where POL = 1 enables output inversion for the LTC6994-2 variant.

It features hysteresis on the IN pin (V_IH ≈ 0.55V₊ + 185mV, V_IL ≈ 0.48V₊ – 155mV), regulated 1V SET pin reference (±30mV), and CMOS output capable of sourcing/sinking 20mA. Delay settling occurs within 6 × t_MASTER, and start-up completes in ≤500 × t_MASTER (≤500µs at R_SET = 50kΩ).

Key Specifications

Pinout & Package

Package: 6-Lead Plastic TSOT-23 (ThinSOT™), 1mm profile, exposed pad optional, –55°C to 125°C operating range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC6994HS6-2#TRPBF and MAX6816EUT+T, the LTC6994MPS6-2#TRM uniquely combines –55°C cold-start capability, full 1µs–33.6s programmability, dual-edge delay with inversion, and AEC-Q100 MP qualification-making it the sole option for mission-critical automotive and aerospace timing where environmental robustness and functional flexibility are mandatory.

Availability

LTC6994MPS6-2#TRM is available at Aetrix Electronics and suitable for automotive switch debouncing, industrial noise discrimination, and high-vibration pulse qualification requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6994MPS6-2#TRM 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, serving industrial, automotive, communications, and healthcare markets.

The LTC6994MPS6-2#TRM belongs to the TimerBlox® family-designed specifically to replace discrete RC timers, crystal oscillators, and microcontroller-based timing functions with single-chip, pin-configurable, low-power silicon timing solutions.

FAQ

What is the minimum and maximum delay achievable with the LTC6994MPS6-2#TRM?

The LTC6994MPS6-2#TRM achieves a delay range of 1µs to 33.6 seconds. Minimum delay occurs with R_SET = 50kΩ and NDIV = 1; maximum delay uses R_SET = 800kΩ and NDIV = 2²¹. The equation t_DELAY = NDIV × R_SET/50kΩ × 1µs defines all values. Verified accuracy is ±2.3% for delays >512µs across –55°C to 125°C.

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

The LTC6994MPS6-2#TRM delays both rising and falling input edges and supports output inversion via the POL bit; the LTC6994MPS6-1#TRM delays only one edge (rising or falling, selected by POL). Both share identical package, temperature rating (–55°C to 125°C), and electrical specs-but LTC6994MPS6-2#TRM is required for applications needing symmetrical edge control or programmable polarity.

Can the LTC6994MPS6-2#TRM operate from a 2.25V supply in automotive cold-crank conditions?

Yes. The LTC6994MPS6-2#TRM is fully specified from 2.25V to 5.5V and guaranteed functional down to –55°C. Its 1.95V power-on reset threshold ensures reliable initialization during automotive cold-crank (typically 2.2–2.8V), and its ±2.3% delay accuracy holds across the full temperature and supply range-critical for engine control and safety systems.

What is the role of the DIV pin on the LTC6994MPS6-2#TRM, and how is it configured?

The DIV pin on the LTC6994MPS6-2#TRM is a 4-bit A/D input that sets both the divider ratio (NDIV = 1, 8, 64, ..., 2²¹) and the POL bit (output inversion enable). It is configured using a resistor divider between V+ and GND; Table 1 in the datasheet specifies exact R1/R2 values for each DIVCODE. V_DIV/V+ must be accurate to ±1.5%, and total impedance must stay below 500kΩ.

Is the LTC6994MPS6-2#TRM suitable for battery-powered IoT sensor nodes?

Yes. The LTC6994MPS6-2#TRM draws as little as 55µA at 2.25V with R_SET = 800kΩ, enabling multi-year operation on coin cells. Its programmable delay eliminates MCU wake-up cycles for periodic sensing, and its –55°C to 125°C rating supports outdoor and industrial deployments. No external components beyond R_SET and R1/R2 are required-reducing size and bill-of-materials cost.