Datasheet Linear Technology LTC1427-50

Manufacturer	Linear Technology
Series	LTC1427-50

Micropower, 10-Bit Current Output DAC with SMBus Serial Interface

Datasheets

PDF, 211 Kb, File uploaded: Aug 22, 2017

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Packaging

	LTC1427CS8-50#PBF	LTC1427CS8-50#TRPBF
N	1	2
Package	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	S8	S8
Package Index	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8

Parametrics

Parameters / Models	LTC1427CS8-50#PBF	LTC1427CS8-50#TRPBF
Bits, bits	10	10
DAC INL, LSB	1	1
DACs	1	1
DNL, LSB	0.9	0.9
Export Control	no	no
I/O	Serial I2C	Serial I2C
Operating Temperature Range, °C	0 to 70	0 to 70
Output	Current	Current
Output Range	50ВµA sourcing	50ВµA sourcing
Power, mW	0.55	0.55
Power-On-Reset	Zero-Scale, Mid-Scale	Zero-Scale, Mid-Scale
Supply Voltage Range	2.7V to 5.5V	2.7V to 5.5V

Eco Plan

	LTC1427CS8-50#PBF	LTC1427CS8-50#TRPBF
RoHS	Compliant	Compliant

Articles

Download
An SMBus-Controlled 10-Bit, Current Output, 50µA Full-Scale DAC &mdash LT Journal
PDF, 242 Kb, File published: Feb 1, 1998
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DESIGN FEATURES An SMBus-Controlled 10-Bit, Current
Output, 50ВµA Full-Scale DAC by Ricky Chow 6 precision full-scale current is trimmed
to В±1.5% at room temperature and
В±2.5% over the commercial temperature range.
There are two ways to shut down
the LTC1427 (see Figure 2). A logic
low at the SHDN pin or a logic high at
bit 7 of the command byte sent
through the SMBus interface will put
the LTC1427 into shutdown mode. In
shutdown mode, the digital data is
retained internally and the supply
current drops to only 12ВµA typically. SMBus WRITE BYTE PROTOCOL, WITH SMBus ADDRESS = 0101111B,
COMMAND BYTE = 0XXXXX11B AND DATA BYTE = 11111111B, AD1 = 0, AD0 =1 SDA COMMAND BYTE 0 1 0 1 1 1 1 1 2 3 4 5 6 7 8 X X X X X DATA BYTE
1 1 1 1 1 1 1 1 1 1 ACK SMBus ADDRESS ACK The LTC1427-50 communicates with
external circuitry using the standard
2-wire I2C or SMBus interface. The
operating sequence (Figure 1) shows
the signals on the SMBus. The two
bus lines, SDA and SCL, must be high
when the bus is not in use. External
pull-up resistors are required on these
lines. The LTC1427-50 is a receiveonly (slave) device; the system master …

Model Line

Series: LTC1427-50 (2)

LTC1427CS8-50#PBF LTC1427CS8-50#TRPBF

Manufacturer's Classification

Data Conversion > Digital-to-Analog Converters (DAC) > Special Function DACs | Unipolar Digital-to-Analog Converters (DAC)

Slices

Microcontrollers