BU7858KN-E2 Overview
There is a package 28-VFQFN available.In the Tape & Reel (TR) package, this data acquisition unit is available.Maintaining a -25°C~70°C working temperature ensures normal operation.This outstanding DAC, Audio gives you the right to receive what you paid.By mounting it through Surface Mount, you will save more space.You may have to redo the circuit if your meter does not show 2.7V~3.3V for the supply voltage.Overall, there are 28 terminations.Whenever you need high performance, you can use the 1 functions.Complex tasks are efficiently performed by this unit because it has 4 channels.Try searching "BU7858" if you fancy parts with similar specs.As far as pin count goes, it has 28.This is a high resolution 16-bit data acquisition device that is capable of capturing high resolution data.In this unit, there are 28 pins.There were many cases where the Surface Mount technique made use more feasible.Parts are not permitted to be supplied with voltages over 3.3V.An individual data acquisition system cannot be complete without the use of 2 converters.Whenever the supply voltage reaches near 3.7mA, the user should take note.
BU7858KN-E2 Features
Surface Mount acquisition unit
4 channels process
16-Bit acquisition unit
2 converters

BU7858KN-E2 Applications
There are a lot of ROHM Semiconductor
BU7858KN-E2 ADCs/DACs applications.

Medical Instrumentation and medical imaging
Music recording
Digital signal processing
Scientific instruments
Rotary encoder
Displaying
Transducer
Microcontrollers.
Digital Storage Oscilloscope
Scientific instruments.

Factory Lead Time	7 Weeks
Contact Plating	Copper, Tin
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	28-VFQFN
Number of Pins	28
Operating Temperature	-25°C~70°C
Packaging	Tape & Reel (TR)
Published	2005
JESD-609 Code	e2
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	28
Type	DAC, Audio
Voltage - Supply	2.7V~3.3V
Terminal Position	QUAD
Terminal Form	NO LEAD
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Number of Functions	1
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	BU7858
Pin Count	28
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	3.3V
Power Supplies	3V
Number of Channels	4
Number of Bits	16
Supply Current-Max	3.7mA
Supply Type	Analog, Digital
Data Interface	Serial
Number of Converters	2
Voltage Supply Source	Single Supply
Resolution (Bits)	16 b
Height Seated (Max)	0.95mm
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free