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reference designAFE881H1 | Demoboard TIDA-010982

Texas Instruments AFE881H1 | Demoboard TIDA-010982

Field transmitter platform, 4mA to 20mA loop-powered interface reference design

Overview

TopologyDAC
Input voltage8-30 V
IC revisionJANUARY 2026

Description

This reference design gives an example implementation of a 4–20mA interface for 2-wire loop-powered sensors. The design enables evaluation of the AFE881H1 and AFE882H1 in a lower power application-like environment with a 1.8V signal chain. The AFE881H1 and AFE882H1 integrate a high-precision 16-bit digital-to-analog converter (DAC) and a HART® modem. The reference design provides a serial peripheral interface (SPI) and universal asynchronous receiver-transmitter (UART) interface on a pin header to connect to a microcontroller (MCU). This pin header provides 3.3V and 1.8V to power a MCU and a 1.25V reference voltage to be used for an analog-to-digital converter (ADC).

Features

Implementation of 4–20mA loop interface for 2-wire loop-powered sensorComplete 1.8V signal chain allows low power consumption and maintains high accuracyAFE88xH1 16-bit DAC with integrated reference and HART modemMCU interface providing power output (1.8V, 3.3V, 1.25V reference voltage), SPI and UART interface

Typical applications

  • Coriolis Flow Transmitter
  • Vortex flow transmitter
  • Ultrasonic flow transmitter
  • Electromagnetic (MID) flow transmitter
  • Differential Pressure Flow Transmitter
  • Capacitive Level Transmitter
  • Radar / microwave level transmitter
  • Resistive pressure transmitter
  • Silicon pressure transmitter
  • Hydrometric Pressure Level Transmitter
  • Ultrasonic level transmitter
  • LVDT pressure transmitter
  • Impeller / Turbine Flow Transmitter
  • Thermal Mass Flow Transmitter
  • Temperature transmitter
  • Resistive pressure transmitter
  • Capacitive pressure transmitter
  • Capacitive pressure transmitter
  • Silicon pressure transmitter

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Pins
Application
PCB/Cable/Panel
Modularity
Wire Section
C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
Ø D(mm)
Mount
IR(A)
Working Voltage(V (AC))
Color
Gender
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
SamplesAvailability & Sample
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60900213421
SPECWR-PHD Jumper, 1, –
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Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
Pins1 
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Operating Temperature -40 °C up to +125 °C
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Insulation Resistance1000 MΩ
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Length2.44 mm
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PackagingBag 
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Rated Current3 A
Working Voltage250 V (AC)
ColorBlack 
GenderJumper 
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61300211121
SPECWR-PHD Pin Header - Single, 2, –
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins2 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length5.08 mm
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PackagingBag 
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MountTHT 
Rated Current3 A
Working Voltage250 V (AC)
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GenderPin Header 
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TypeStraight 
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691214310002
SPECWR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular, 2, Rising Cage Clamp
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular
Pins2 
ApplicationRising Cage Clamp 
PCB/Cable/PanelPCB 
ModularityYes 
Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²)
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Operating Temperature -40 °C up to +105 °C
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Length7.62 mm
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PackagingBox 
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MountTHT 
Rated Current10 A
Working Voltage300 V (AC)
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TypeHorizontal 
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61300311121
SPECWR-PHD Pin Header - Single, 3, –
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins3 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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MountTHT 
Rated Current3 A
Working Voltage250 V (AC)
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GenderPin Header 
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TypeStraight 
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61300621121
SPECWR-PHD Pin Header - Dual, 6, –
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
Pins6 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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MountTHT 
Rated Current3 A
Working Voltage250 V (AC)
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GenderPin Header 
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TypeStraight 
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61301621021
SPECWR-PHD Pin Header - Dual, 16, –

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
Pins16 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length20.32 mm
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PackagingBag 
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MountTHT 
Rated Current3 A
Working Voltage250 V (AC)
ColorBlack 
GenderPin Header 
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TypeAngled 
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742792041
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Size0805 
Operating Temperature -55 °C up to +125 °C
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Length2 mm
Width1.2 mm
Height0.9 mm
Pad Dimension0.5 mm
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MountSMT 
Rated Current0.2 A
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Impedance @ 100 MHz600 Ω
Maximum Impedance700 Ω
Maximum Impedance160 MHz 
Rated Current 21500 mA
DC Resistance0.4 Ω
TypeWide Band 
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865230143004
SPECWCAP-AS5H Aluminum Electrolytic Capacitors, –, –
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-AS5H Aluminum Electrolytic Capacitors
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Capacitance100 µF
Capacitance±20% 
Rated Voltage6.3 V (DC)
Size6.3 x 5.5 
Operating Temperature -40 °C up to +105 °C
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Dissipation Factor32 %
Insulation Resistance1 MΩ
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Length5.5 mm
Width6.6 mm
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Packaging15" Tape & Reel 
Endurance 5000
Ripple Current60 mA
Leakage Current6.3 µA
Diameter6.3 mm
MountV-Chip SMT 
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885012205061
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance1 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0402 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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885012006010
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance220 pF
Capacitance±5% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012006013
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance680 pF
Capacitance±5% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012006015
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance2.2 nF
Capacitance±5% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206020
SPECWCAP-CSGP MLCCs 10 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
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Capacitance100 nF
Capacitance±10% 
Rated Voltage10 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206052
SPECWCAP-CSGP MLCCs 16 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
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Capacitance1 µF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor10 %
Insulation Resistance0.1 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206083
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance1 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012106005
SPECWCAP-CSGP MLCCs 6.3 V(DC), –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 6.3 V(DC)
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Capacitance4.7 µF
Capacitance±20% 
Rated Voltage6.3 V (DC)
Size0603 
Operating Temperature -55 °C up to +85 °C
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Dissipation Factor10 %
Insulation Resistance0.02 GΩ
Ceramic TypeX5R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012207052
SPECWCAP-CSGP MLCCs 16 V(DC), –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
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Capacitance2.2 µF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor10 %
Insulation Resistance0.05 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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885012207086
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance1 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height0.8 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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