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Contents

README

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SSM2167-1RMZ-R7

Analog Devices · Audio Amplifiers · MSOP-10

SSM2167-1RMZ-R7 from Analog Devices, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference for the device, to be connected to the system analog ground in a single-point (star) ground layout.
2 VCAIN input Input to the VCA, which must be AC-coupled from BUFOUT (pin 4) through a blocking capacitor C2, typically 4.7 µF to 10 µF, because the 1 kΩ input impedance sets the lower −3 dB cutoff.
3 SHUTDOWN input Active-low, CMOS-compatible power-down input; applying 0 V reduces supply current to under 10 µA and places the input and output circuitry in a high-impedance state.
4 BUFOUT output Output of the unity-gain input buffer, which drives the VCA input (VCAIN, pin 2) through an external blocking capacitor.
5 INPUT input Microphone signal input to the input buffer, presenting approximately 100 kΩ to the source and carrying an internal DC bias of about 400 mV, so a blocking capacitor (0.1 µF is a good choice) is required for ground-referenced sources.
6 AVG CAP passive Connection for the external level-detector averaging capacitor CAVG, which should be 2.2 µF for low-frequency operation to 10 Hz and electrolytic in the range of 2 µF to 22 µF.
7 GATE THRS passive Connection for the noise-gate threshold resistor RGATE, which is connected to VDD and sets the downward expansion threshold from −40 dBV (0 Ω) to −55 dBV (5 kΩ); values above 5 kΩ are not recommended.
8 COMPRESSION RATIO passive Connection for the compression-ratio resistor RCOMP, which is connected to VDD and sets the ratio from 1:1 (0 Ω short) to 10:1 (175 kΩ); resistor values should be greater than 5 kΩ because lower values may be interpreted as a short.
9 OUTPUT output VCA output with a typical output impedance below 145 Ω, which requires an external load greater than 5 kΩ and a blocking capacitor for grounded loads because the nominal DC output is about 1.4 V.
10 VDD power_in Positive supply pin, specified for 2.5 V to 5.5 V operation with an absolute maximum supply rating of 6 V.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-10
Category Amplifiers/Comparators
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage VSY 2.5 5.5 V 3
Supply Current ISY 2.3 5 mA 3
Shutdown Supply Current ISY 2 8 µA Pin 3 = GND 3
Minimum resistive load 5 kΩ 3
Maximum capacitive load 2 nF 3
Noise Gate Range, Maximum threshold -40 dBV 3
Power Supply Rejection Ratio PSRR 45 dB VSY = 2.5 V to 6 V 3
DC Output Voltage 1.4 V 3
Voltage Noise Density en 20 nV/√Hz 10:1 compression 3
Noise -70 dBV 20 kHz bandwidth, VIN = GND 3
Total Harmonic Distortion + Noise THD + N 0.2 % VIN = 100 mV rms 3
Input Impedance ZIN 100 kΩ 3
Output Impedance ZOUT 145 Ω 3
Input Voltage Range 600 mV rms 0.4% THD + N 3
Output Voltage Range 700 mV rms 0.4% THD + N 3
Gain Bandwidth Product 1 MHz 1:1 compression, VCA G = 18 dB 3
VCA Dynamic Gain Range 40 dB 3
VCA Fixed Gain 18 dB 3
Rotation Point 63 mV rms 3
Supply Voltage (absolute maximum) 6 V 4
Input Voltage (absolute maximum) 6 V 4
Operating Temperature Range -40 85 °C 4
Storage Temperature Range -65 150 °C 4
Junction Temperature 150 °C 4
Lead Temperature (Soldering) 300 °C Soldering, 10 sec 4
883 (Human Body) Model ESD 500 V 4
Thermal Resistance, Junction-to-Ambient (10-Lead MSOP) θJA 180 °C/W Worst case, device soldered in 4-layer circuit board 4
Thermal Resistance, Junction-to-Case (10-Lead MSOP) θJC 35 °C/W 4

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing Abs 883 (Human Body) Model 500 V Stresses above those listed under Absolute Maximum Ratings 4

CAD (KiCad official)

  • Symbol: SSM2167-1RMZ-R7
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: ssm2167-1rmz-r7-etched.step / ssm2167-1rmz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssm2167-1rmz-r7.step / ssm2167-1rmz-r7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (12 pp, sha256 32b200c27cbe3c3a, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF