Analog Devices Inc. SMP04ES-REEL

Overview

SMP04ES-REEL from Analog Devices is a monolithic CMOS quad sample-and-hold amplifier with four independent channels, internal 60 pF hold capacitors, ±10 mV buffer offset voltage, 2 mV/s typical droop rate, and TTL/CMOS-compatible logic inputs. It operates from single (+12 V) or dual (±5 V to ±6 V) supplies and is used in multichannel data acquisition systems for precise analog signal capture before ADC conversion.

For engineers reviewing the SMP04ES-REEL datasheet, SMP04ES-REEL pinout, SMP04ES-REEL application, or SMP04ES-REEL equivalent, key selection criteria include acquisition time (≤4.25 µs to 0.1%), output stability with ≤500 pF capacitive load, hold step error (≤4 mV), extended industrial temperature range (–40°C to +85°C), and SO-16 surface-mount packaging for high-density PCB layouts.

Technical Context

The SMP04ES-REEL integrates four matched track-and-hold circuits on a single die using oxide-isolated CMOS technology, enabling channel-to-channel crosstalk of –80 dB and acquisition to ±1/2 LSB in <4 µs. Each channel features an internal precision buffer amplifier and dedicated hold capacitor, eliminating external capacitor layout sensitivity and dielectric absorption errors.

It supports both single-supply (VDD = +12 V, VSS = DGND = 0 V) and dual-supply (VDD = +5 V, VSS = –5 V) operation, with output swing extending to within 0.06 V of either rail and logic inputs compliant to TTL/CMOS thresholds (VINH ≥ 2.4 V, VINL ≤ 0.8 V). Power supply rejection ratio exceeds 60 dB across 10.8–13.2 V or ±5–±6 V ranges.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (Small Outline Integrated Circuit), surface-mount, R-16A package option per Analog Devices ordering guide. Pin pitch: 1.27 mm, body width: 3.9 mm, total length: 9.9 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad sample-and-hold applications.

Compared with AD781ARZ and LF398N, the SMP04ES-REEL delivers integrated quad functionality with internal hold capacitors, CMOS logic compatibility, and 2 mV/s droop - reducing BOM count by 4× and eliminating hold capacitor layout risks, making it optimal for compact, multichannel industrial DAQ modules.

Availability

SMP04ES-REEL is available at Aetrix Electronics and suitable for multichannel data acquisition systems, automatic test equipment, medical instrumentation, and signal processing systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SMP04ES-REEL 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.

The SMP04ES-REEL belongs to Analog Devices' precision sample-and-hold amplifier product line, designed specifically for high-accuracy, multichannel analog signal conditioning in industrial, medical, and test equipment where channel matching, low droop, and integration density are critical.

FAQ

What is the maximum sampling frequency supported by the SMP04ES-REEL?

The SMP04ES-REEL achieves reliable sampled-data performance up to 85 kHz, validated under 1.4 V_p-p input at 2 kHz with 14.4 kHz sampling rate yielding 58.2 dB SNR. Its 4.25 µs acquisition time to 0.1% supports effective sampling rates exceeding 200 kSPS per channel when interleaved, though system-level bandwidth is constrained by hold-mode settling and external ADC timing.

Can the SMP04ES-REEL operate from a single +5 V supply?

No - the SMP04ES-REEL requires minimum total supply voltage of 7 V. Single-supply operation mandates VDD ≥ +7 V with VSS = DGND = 0 V. At +5 V, key specifications including acquisition time, offset voltage, and output compliance degrade beyond datasheet limits; the device is not characterized or guaranteed below 7 V total supply.

How does the SMP04ES-REEL handle unused channels?

Unused analog inputs (VINx) must be connected to analog ground; unused S/H control inputs must be held at logic LOW. Leaving inputs floating risks latch-up or increased crosstalk. The NC pin (Pin 9) must remain unconnected. All four channels share VDD, VSS, and DGND, so disabling one channel does not reduce total supply current significantly.

Is the SMP04ES-REEL RoHS compliant and lead-free?

Yes - the SMP04ES-REEL (SO-16, R-16A package) is manufactured in a lead-free, RoHS-compliant process per Analog Devices' standard product release. The "ES" suffix denotes the plastic SOIC variant qualified to –40°C to +85°C and shipped in tape-and-reel (REEL) format meeting JEDEC J-STD-020 moisture sensitivity level 3.

What is the purpose of the DGND pin, and how should it be routed?

DGND (Pin 7) is the dedicated digital ground reference for logic inputs and internal TTL regulation. It must be physically separated from analog ground (VSS) on the PCB and connected to the system digital ground plane. A star ground point or split-plane design with narrow bridge is recommended to prevent digital switching noise from coupling into analog hold nodes tied to VSS.