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Analog Devices Semiconductor Electronic Components Datasheet

AD8300 Datasheet

+3 Volt/ Serial Input Complete 12-Bit DAC

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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
+3 Volt, Serial Input
Complete 12-Bit DAC
AD8300
FUNCTIONAL BLOCK DIAGRAM
CLR
LD
CS
CLK
SDI
REF
EN
12-BIT
DAC
12
DAC
REGISTER
12
SERIAL
REGISTER AD8300
VOUT
VDD
GND
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.
3.0
VFS 1 LSB
2.8 DATA = FFFH
TA = +25؇C
2.6
PROPER OPERATION
2.4 WHEN VDD SUPPLY
VOLTAGE ABOVE
CURVE
2.2
2.0
0.01
0.1 1.0
OUTPUT LOAD CURRENT – mA
10
Figure 1. Minimum Supply Voltage vs. Load
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.
1.00
0.75
0.50
VDD = +2.7V
TA = –40؇C, +25؇C, +125؇C
0.25
0.00
–0.25
–0.50
–0.75
–1.00
0
= –40؇C
= +25؇C
= +125؇C
1024
2048
3072
4096
DIGITAL INPUT CODE – Decimal
Figure 2. Linearity Error vs. Digital Code and Temperature
REV. 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.
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


Analog Devices Semiconductor Electronic Components Datasheet

AD8300 Datasheet

+3 Volt/ Serial Input Complete 12-Bit DAC

No Preview Available !

AD8300–SPECIFICATIONS
+3 V OPERATION (@ VDD = +5 V ؎ 10%, –40؇C TA +85؇C, unless otherwise noted)
Parameter
Symbol
Condition
Min Typ Max Units
STATIC PERFORMANCE
Resolution
Relative Accuracy
Differential Nonlinearity2
Zero-Scale Error
Full-Scale Voltage3
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
Logic Input High Voltage
Input Leakage Current
Input Capacitance
INTERFACE TIMING
SPECIFICATIONS4, 5
Clock Width High
Clock Width Low
Load Pulsewidth
Data Setup
Data Hold
Clear Pulsewidth
Load Setup
Load Hold
Select
Deselect
AC CHARACTERISTICS4
Voltage Output Settling Time
Output Slew Rate
DAC Glitch
Digital Feedthrough
N
INL
DNL
VZSE
VFS
TCVFS
IOUT
IOUT
LREG
ROUT
CL
VIL
VIH
IIL
CIL
tCH
tCL
tLDW
tDS
tDH
tCLRW
tLD1
tLD2
tCSS
tCSH
tS
SR
[Note 1]
Monotonic
Data = 000H
Data = FFFH
[Notes 3, 4]
Data = 800H, VOUT = 5 LSB
Data = 800H, VOUT = 5 LSB
RL = 200 to , Data = 800H
Data = 000H
No Oscillation4
To ± 0.2% of Full Scale
To ± 1 LSB of Final Value6
Data = 000H to FFFH to 000H
12
–2 ± 1/2 +2
–1 ± 1/2 +1
+1/2 +3
2.039 2.0475 2.056
16
Bits
LSB
LSB
mV
Volts
ppm/°C
5
2
1.5 5
30
500
mA
mA
LSB
pF
0.6 V
2.1 V
10 µA
10 pF
40
40
50
15
15
40
15
40
40
40
7
14
2.0
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
V/µs
nV/s
nV/s
SUPPLY CHARACTERISTICS
Power Supply Range
Positive Supply Current
Power Dissipation
Power Supply Sensitivity
VDD RANGE
IDD
PDISS
PSS
DNL < ± 1 LSB
2.7 5.5
VDD = 3 V, VIL = 0 V, Data = 000H
1.2 1.7
VDD = 3.6 V, VIH = 2.3 V, Data = FFFH
1.9 3.0
VDD = 3 V, VIL = 0 V, Data = 000H
VDD = ± 5%
3.6 5.1
0.001 0.005
V
mA
mA
mW
%/%
NOTES
1LSB = 0.5 mV for 0 V to +2.0475 V output range.
2The first two codes (000H, 001H) are excluded from the linearity error measurement.
3Includes internal voltage reference error.
4These parameters are guaranteed by design and not subject to production testing.
5All input control signals are specified with tR = tF = 2 ns (10% to 90% of +3 V) and timed from a voltage level of 1.6 V.
6The settling time specification does not apply for negative going transitions within the last 6 LSBs of ground. Some devices exhibit double the typical settling time in
this 6 LSB region.
Specifications subject to change without notice.
–2– REV. A


Part Number AD8300
Description +3 Volt/ Serial Input Complete 12-Bit DAC
Maker Analog Devices
Total Page 8 Pages
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