REV. A
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a
AD8300
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 1999
FUNCTIONAL BLOCK DIAGRAM
V
DD
V
OUT
GND
CLR
LD
CS
CLK
SDI
AD8300
12
12
12-BIT
DAC
REF
DAC
REGISTER
EN
SERIAL
REGISTER
+3 Volt, Serial Input
Complete 12-Bit DAC
FEATURES
Complete 12-Bit DAC
No External Components
Single +3 Volt Operation
0.5 mV/Bit with 2.0475 V Full Scale
6 s Output Voltage Settling Time
Low Power: 3.6 mW
Compact SO-8 1.5 mm Height Package
APPLICATIONS
Portable Communications
Digitally Controlled Calibration
Servo Controls
PC Peripherals
GENERAL DESCRIPTION
The AD8300 is a complete 12-bit, voltage-output digital-to-
analog converter designed to operate from a single +3 volt sup-
ply. Built using a CBCMOS process, this monolithic DAC
offers the user low cost, and ease-of-use in single-supply +3 volt
systems. Operation is guaranteed over the supply voltage range
of +2.7 V to +5.5 V making this device ideal for battery oper-
ated applications.
The 2.0475 V full-scale voltage output is laser trimmed to
maintain accuracy over the operating temperature range of the
device. The binary input data format provides an easy-to-use
one-half-millivolt-per-bit software programmability. The voltage
outputs are capable of sourcing 5 mA.
A double buffered serial data interface offers high speed, three-
wire, DSP and microcontroller compatible inputs using data in
(SDI), clock (CLK) and load strobe (LD) pins. A chip select
(CS) pin simplifies connection of multiple DAC packages by
enabling the clock input when active low. Additionally, a CLR
input sets the output to zero scale at power on or upon user
demand.
The AD8300 is specified over the extended industrial (–40°C to
+85°C) temperature range. AD8300s are available in plastic
DIP, and low profile 1.5 mm height SO-8 surface mount packages.
3.0
2.8
2.0
0.01 100.1 1.0
2.6
2.4
2.2
OUTPUT LOAD CURRENT – mA
MINIMUM SUPPLY VOLTAGE – Volts
PROPER OPERATION
WHEN V
DD
SUPPLY
VOLTAGE ABOVE
CURVE
DVFS 1 LSB
DATA = FFF
H
T
A
= +258C
Figure 1. Minimum Supply Voltage vs. Load
1.00
0.75
–1.00
0 40961024 2048
0.50
3072
0.25
0.00
–0.25
–0.50
–0.75
DIGITAL INPUT CODE – Decimal
INL LINEARITY ERROR – LSB
V
DD
= +2.7V
T
A
= –408C, +258C, +1258C
= –408C
= +258C
= +1258C
Figure 2. Linearity Error vs. Digital Code and Temperature
