Application guide

Automation & analog I/O

Build controller measurement and output paths with amplifiers, ADCs, DACs and wired interfaces.

4 functional blocks8 components for evaluationCompare all parameters ↓

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Component building blocks

01Sensor signal conditioning2 components 02Analog data acquisition2 components 03Analog control output2 components 04Wired equipment interfaces2 components

Functional blocks for selection; device connections and component values depend on your design.

FUNCTION / 01

Sensor signal conditioning

Condition low-level differential and sensor signals using instrumentation or zero-drift amplifiers. Check sensor bias, common-mode range and bandwidth.

BIF620 Instrumentation amplifierPackage: SOP-8 BIF8552 Dual-channel zero-drift operational amplifierPackage: SOP-8

FUNCTION / 02

Analog data acquisition

Digitize analog signals using the channel count, resolution, sample rate and interface recorded for each ADC.

BI7606PMC 8-channel, 16-bit ADCPackage: LQFP64 BI1115PMC 4-channel, 16-bit ADC with I²C interfacePackage: MSOP-10

FUNCTION / 03

Analog control output

Convert digital commands into an analog output using the listed DACs. Confirm output range and interface against the device documentation.

BI5420PMC 16-bit control-output DACPackage: TSSOP-24 BI5422PMC 16-bit control-output DACPackage: TSSOP-24

FUNCTION / 04

Wired equipment interfaces

Provide RS-485 or isolated RS-422/RS-485 communication between equipment controllers.

BI3485 RS-485 transceiverPackage: SOP8/TSSOP8 BI83086PMC Isolated RS-422/RS-485 transceiverPackage: SOIC-16

Compare the components

Electrical parameters & cross references

All handbook parameters for the components shown above. Scroll each table horizontally to view every column.

Instrumentation Amplifiers

BI Part Number	Cross Reference	Function	Supply voltage (V)	Input offset voltage (µV)	Input bias current (nA)	Supply current (mA)	Gain bandwidth (MHz)	Slew rate (V/µs)	Package
BIF620	AD620	Instrumentation amplifier	±15	125	28	1.7	0.001	1.2	SOP-8

Zero-drift Operational Amplifiers

BI Part Number	Cross Reference	Function	Channels	Supply voltage (V)	Input offset voltage (µV)	Input bias current (nA)	Supply current (mA)	Gain bandwidth (MHz)	Slew rate (V/µs)	Package
BIF8552	AD8552	Dual-channel zero-drift operational amplifier	2	5.5	15	1	0.58	2	0.8	SOP-8

Analog-to-digital Converters

BI Part Number	Cross Reference	Function	Channels	Resolution (bits)	SNR (dB)	INL	Maximum sample rate (MSPS)	Interface	Package
BI7606PMC	AD7606	8-channel, 16-bit ADC	8	16	92	±1LSB	0.2	SPI, Parallel	LQFP64
BI1115PMC	ADS1115	4-channel, 16-bit ADC with I²C interface	4	16	—	1LSB	0.002	I2C	MSOP-10

Digital-to-analog Converters

BI Part Number	Cross Reference	Function	Channels	Resolution (bits)	SNR (dB)	INL	Maximum sample rate (MSPS)	Interface	Package
BI5420PMC	AD5420	16-bit control-output DAC	1	16	85	1LSB	0.1	SPI	TSSOP-24
BI5422PMC	AD5422	16-bit control-output DAC	1	16	88	1LSB	0.1	SPI	TSSOP-24

RS-232 / RS-422 / RS-485

BI Part Number	Cross Reference	Function	Supply voltage (V)	Data rate (Mbps)	ESD (kV)	Quiescent current (mA)	Common-mode range (V)	Package
BI3485	AMT0114B / MAX3485	RS-485 transceiver	3.3	12	—	0.5	-7–12	SOP8/TSSOP8

Isolated Transceivers

BI Part Number	Cross Reference	Function	Interface	Supply voltage (V)	Control-pin voltage	Bus-side input voltage (V)	Output current (A)	Package
BI83086PMC	GL2941 / NSi83086	Isolated RS-422/RS-485 transceiver	Full-duplex RS-422 / RS-485	-0.5–6	−0.5 V to (VCC1+0.5) V	±15	±10 mA	SOIC-16

Selection based on documented BI component functions. Cross references are comparison aids and do not establish drop-in compatibility or transfer another manufacturer’s qualification.