AD8300 Analog Devices, AD8300 Datasheet

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AD8300

Manufacturer Part Number
AD8300
Description
+3 Volt, Serial Input Complete 12-Bit DAC
Manufacturer
Analog Devices
Datasheet

Specifications of AD8300

Resolution (bits)
12bit
Dac Update Rate
71kSPS
Dac Settling Time
14µs
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Voltage Out
Dac Input Format
Ser

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a
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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.
REV. A
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
Figure 1. Minimum Supply Voltage vs. Load
3.0
2.8
2.6
2.4
2.2
2.0
0.01
PROPER OPERATION
OUTPUT LOAD CURRENT – mA
WHEN V
DATA = FFF
T
VOLTAGE ABOVE
A
VFS
= +25 C
CURVE
0.1
DD
1 LSB
SUPPLY
H
1.0
10
Figure 2. Linearity Error vs. Digital Code and Temperature
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
FUNCTIONAL BLOCK DIAGRAM
CLK
CLR
–0.25
–0.50
–0.75
–1.00
SDI
CS
1.00
0.75
0.50
0.25
0.00
LD
0
World Wide Web Site: http://www.analog.com
EN
REF
Complete 12-Bit DAC
DIGITAL INPUT CODE – Decimal
+3 Volt, Serial Input
= –40 C
= +25 C
= +125 C
1024
REGISTER
REGISTER
SERIAL
V
T
12-BIT
DAC
DAC
DD
A
= –40 C, +25 C, +125 C
= +2.7V
12
12
2048
AD8300
© Analog Devices, Inc., 1999
3072
AD8300
V
V
GND
OUT
DD
4096

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AD8300 Summary of contents

Page 1

... 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 (– +85 C) temperature range. AD8300s are available in plastic DIP, and low profile 1.5 mm height SO-8 surface mount packages. ...

Page 2

... AD8300–SPECIFICATIONS +3 V OPERATION (@ Parameter STATIC PERFORMANCE Resolution Relative Accuracy 2 Differential Nonlinearity Zero-Scale Error 3 Full-Scale Voltage Full-Scale Tempco ANALOG OUTPUT Output Current (Source) Output Current (Sink) Load Regulation Output Resistance to GND Capacitive Load LOGIC INPUTS Logic Input Low Voltage ...

Page 3

... H 30 500 0 2.7 5.5 1.2 1.7 H 2.8 4 5.1 H 0.001 0.006 AD8300 Units Bits LSB LSB mV Volts ppm LSB nV/s nV %/% ...

Page 4

... ORDERING GUIDE Package Model INL Temp Description AD8300AN 2 XIND 8-Lead P-DIP AD8300AR 2 XIND 8-Lead SOIC NOTES XIND = – +85 C. The AD8300 contains 630 transistors. The die size measures 72 mil D11 SDI CLK LD1 LD SDI CLK LD CLR FS V OUT ZS CAUTION ESD (electrostatic discharge) sensitive device ...

Page 5

... 100 1k 10k 100k 1M FREQUENCY – Hz Figure 8. Power Supply Rejection vs. Frequency CODE 800 TO 7FF H H Figure 11. Midscale Transition Performance –5– AD8300 HORIZONTAL = 1 s/DIV Figure 6. Detail Settling Time HORIZONTAL = 20 s/DIV Figure 9. Large Signal Settling Time 0.5 s/DIV Figure 12. Digital Feedthrough vs. Time ...

Page 6

... AD8300 60 TUE = INL+ZS+ 300 UNITS + + – TOTAL UNADJUSTED ERROR – mV Figure 13. Total Unadjusted Error Histogram 1.5 NO LOAD 1 300 UNITS NORMALIZED TO + +5. –0 +2.7V DD –1.0 –1.5 –55 –35 – 105 125 TEMPERATURE – ...

Page 7

... Figure 18 provides a histogram of total output per- formance of full-scale vs. temperature which is dominated by the reference performance. POWER SUPPLY 0.4V FS The very low power consumption of the AD8300 is a direct V OUT 2.047V result of a circuit design optimizing use of a CBCMOS process using the low power characteristics of the CMOS for the ...

Page 8

... AD8300 on a +3.3 V power supply. If this mode of interface is used, make sure that the V of the +5 V CMOS meets the V OL the AD8300 operating See Figure 5 for the effect on digital logic input threshold versus operating LOGIC ...

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