AD7390ANZ Analog Devices Inc, AD7390ANZ Datasheet

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AD7390ANZ

Manufacturer Part Number
AD7390ANZ
Description
IC DAC 12BIT SERIAL 3V 8DIP
Manufacturer
Analog Devices Inc
Datasheet
1.AD7391ARZ.pdf (12 pages)

Specifications of AD7390ANZ

Data Interface
Serial
Settling Time
60µs
Number Of Bits
12
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
500µW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Resolution (bits)
12bit
Sampling Rate
17kSPS
Input Channel Type
Serial
Supply Voltage Range - Analogue
2.7V To 5.5V
Supply Current
55µA
Digital Ic Case Style
DIP
No. Of
RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
a
GENERAL DESCRIPTION
The AD7390/AD7391 family of 10-bit and 12-bit voltage-
output digital-to-analog converters is designed to operate
from a single 3 V supply. Built using a CBCMOS process,
these monolithic DACs offer the user low cost, and ease-of-use
in single-supply 3 V systems. Operation is guaranteed over the
supply voltage range of 2.7 V to 5.5 V consuming less than 100 µA
making this device ideal for battery operated applications.
The full-scale voltage output is determined by the external
reference input voltage applied. The rail-to-rail REF
DAC
supply V
A doubled-buffered serial-data interface offers high-speed,
3-wire, SPI and microcontroller compatible inputs using data
OUT
1.00
0.75
0.50
0.25
0.00
0.25
0.50
0.75
1.00
DD
allows for a full-scale voltage set equal to the positive
0
or any value in between.
AD7390
V
T
SUPERIMPOSED
DD
A
=
512
= 3.0V
55 C, +25 C, +85 C
1024
1536
CODE – Decimal
2048
2560
3072
3584
IN
4096
to
Micropower 10-Bit and 12-Bit DACs
in (SDI), clock (CLK) and load strobe (LD) pins. Addition-
ally, a CLR input sets the output to zero scale at power on or
upon user demand.
Both parts are offered in the same pinout to allow users to select
the amount of resolution appropriate for their application without
circuit card redesign.
The AD7390/AD7391 are specified over the extended industrial
( 40°C to
specified for the
range. The AD7390/AD7391s are available in plastic DIP, and
low profile 1.75 mm height SO-8 surface mount packages. The
AD7391ARU is available for ultracompact applications in a thin
1.1 mm TSSOP-8 package.
2.0
1.5
1.0
0.5
0.0
0.5
1.0
1.5
2.0
CLR
CLK
REF
SDI
LD
0
FUNCTIONAL BLOCK DIAGRAM
V
V
85°C) temperature range. The AD7391AR is
AD7390
DD
REF
512
= 3.0V
= 2.5V
EN
40°C to
1024
AD7390
SERIAL REGISTER
1536
DAC REGISTER
AD7390/AD7391
CODE – Decimal
12-BIT DAC
+25 C, +85 C
55 C
125°C automotive temperature
3 V Serial-Input
2048
12
12
2560
3072
2584
V
V
GND
DD
OUT
4096

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AD7390ANZ Summary of contents

Page 1

GENERAL DESCRIPTION The AD7390/AD7391 family of 10-bit and 12-bit voltage- output digital-to-analog converters is designed to operate from a single 3 V supply. Built using a CBCMOS process, these monolithic DACs offer the user low cost, and ease-of-use in ...

Page 2

AD7390/AD7391–SPECIFICATIONS AD7390 ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE 1 Resolution 2 Relative Accuracy 2 Differential Nonlinearity Zero-Scale Error Full-Scale Voltage Error 3 Full-Scale Tempco REFERENCE INPUT V Range REF IN Input Resistance 3 Input Capacitance ANALOG OUTPUT Output Current (Source) Output ...

Page 3

AD7391 ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE 1 Resolution 2 Relative Accuracy 2 Differential Nonlinearity Zero-Scale Error Full-Scale Error 3 Full-Scale Tempco REFERENCE INPUT V Range REF IN Input Resistance 3 Input Capacitance ANALOG OUTPUT Output Current (Source) Output Current (Sink) ...

Page 4

AD7390/AD7391 ABSOLUTE MAXIMUM RATINGS V to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . GND . . ...

Page 5

SDI D11 D10 AD7390 AD7391 CLK t t LD1 LD1 LD SDI CLK LD CLR FS V OUT ZS CLR LD CLK Serial Shift Register Function ↑ Shift-Register-Data Advanced One-Bit Disables ...

Page 6

AD7390/AD7391–Typical Performance Characteristics 100 UNITS 2. 2.5V REF 5.0 5.8 6.6 7.3 8.1 8.9 9.7 10.5 11.2 12.0 TOTAL UNADJUSTED ERROR – ...

Page 7

REF CODE = ØØØ – V OUT 100 s V OUT (1V/DIV 2.5V ...

Page 8

AD7390/AD7391 OPERATION The AD7390 and AD7391 are a set of pin compatible, 12-bit/ 10-bit digital-to-analog converters. These single-supply opera- tion devices consume less than 100 microamps of current while operating from power supplies in the 2 5.5 V ...

Page 9

The AD7390 should be powered directly from the system power supply. This arrangement, shown in Figure 6, employs an LC filter and separate power and ground connections to isolate the analog section from the logic switching transients. FERRITE BEAD: TWO ...

Page 10

AD7390/AD7391 UNIPOLAR OUTPUT OPERATION This is the basic mode of operation for the AD7390. As shown in Figure 10, the AD7390 has been designed to drive loads as low as 5 kΩ in parallel with 100 pF. The code table ...

Page 11

OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead SOIC (R-8) 0.1968 (5.00) 0.1890 (4.80 0.1574 (4.00) 0.2440 (6.20) 0.2284 (5.80) 0.1497 (3.80 PIN 1 0.0500 (1.27) BSC 0.0688 (1.75) 0.0098 (0.25) 0.0532 (1.35) 0.0040 (0.10) ...

Page 12

AD7390/AD7391 Revision History Location Data Sheet changed from REV REV. A. Edits to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . ...

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