Burr Brown Products
from Texas Instruments
OP
A1
32
IVC
102
DA
C88
®
DAC8830
DAC8831
SLAS449C – FEBRUARY 2005 – REVISED NOVEMBER 2006
31
16-Bit, Ultra-Low Power, Voltage-Output
Digital-to-Analog Converters
FEATURES
•
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•
•
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•
•
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16-Bit Resolution
2.7 V to 5.5 V Single-Supply Operation
Very Low Power: 15
µW
for 3 V Power
High Accuracy, INL: 1 LSB
Low Glitch: 10 nV-s
Low Noise: 10 nV/√Hz
Fast Settling: 1.0
µS
Fast SPI™ Interface, up to 50 MHz
Reset to Zero-Code
Schmitt-Trigger Inputs for Direct Optocoupler
Interface
Industry-Standard Pin Configuration
DESCRIPTION
The DAC8830 and DAC8831 are single, 16-bit,
serial-input,
voltage-output
digital-to-analog
converters (DACs) operating from a single 3 V to 5 V
power supply. These converters provide excellent
linearity (1 LSB INL), low glitch, low noise, and fast
settling (1.0
µS
to 1/2 LSB of full-scale output) over
the specified temperature range of –40°C to +85°C.
The output is unbuffered, which reduces the power
consumption and the error introduced by the buffer.
These parts feature a standard high-speed (clock up
to 50 MHz), 3 V or 5 V SPI serial interface to
communicate with the DSP or microprocessors.
The DAC8830 output is 0 V to V
REF
. However, the
DAC8831 provides bipolar output (±V
REF
) when
working with an external buffer. The DAC8830 and
DAC8831 are both reset to zero-code after power
up. For optimum performance, a set of Kelvin
connections to external reference and analog ground
input are provided on the DAC8831.
The DAC8830 is available in an SO-8 package, and
the DAC8831 in an SO-14 package. Both have
industry standard pinouts (see
Table 3,
the
cross-reference table in the
Application Information
section for details). The DAC8831 is also available in
a QFN-14 package.
DAC8831
Functional Block Diagram
V
DD
V
REF
−S
V
REF
−F
R
INV
R
FB
RFB
INV
Serial Interface
and Control Logic
DAC
V
OUT
+V
−
+
V
O
APPLICATIONS
Portable Equipment
Automatic Test Equipment
Industrial Process Control
Data Acquisition Systems
Optical Networking
DAC8830
Functional Block Diagram
V
DD
V
REF
CS
SCLK
SDI
Serial
Interface
DAC
V
OUT
LDAC
AGND
Input
Register
CS
SCLK
SDI
DAC Latch
Input
Register
DAC Latch
DAC8831
−V
OPA277
AGNDF
OPA704
AGNDS
OPA727
DAC8830
DGND
DGND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corp.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated
DAC8830
DAC8831
www.ti.com
SLAS449C – FEBRUARY 2005 – REVISED NOVEMBER 2006
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
ORDERING INFORMATION
(1)
MINIMUM
RELATIVE
ACCURACY
(LSB)
±4
±2
±1
±4
±2
±1
±4
±2
±1
DIFFERENTIAL
NONLINEARITY
(LSB)
±1
±1
±1
±1
±1
±1
±1
±1
±1
POWER-
ON
RESET
VALUE
Zero-Code
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
PACKAGE
MARKING
8830I
PACKAGE-
LEAD
SO-8
PACKAGE
DESIGNATOR
D
DAC8830IDR
DAC8830IBD
Zero-Code
–40°C to +85°C
8830I
SO-8
D
DAC8830IBDR
DAC8830ICD
Zero-Code
–40°C to +85°C
8830I
SO-8
D
DAC8830ICDR
DAC8831ID
Zero-Code
–40°C to +85°C
8831I
SO-14
D
DAC8831IDR
DAC8831IBD
Zero-Code
–40°C to +85°C
8831I
SO-14
D
DAC8831IBDR
DAC8831ICD
Zero-Code
–40°C to +85°C
8831I
SO-14
D
DAC8831ICDR
DAC8831IRGYT
Zero-Code
–40°C to +85°C
8831I
QFN-14
RGY
DAC8831IRGYR
DAC8831IBRGYT
Zero-Code
–40°C to +85°C
8831I
QFN-14
RGY
DAC8831IBRGYR
DAC8831ICRGYT
Zero-Code
–40°C to +85°C
8831I
QFN-14
RGY
DAC8831ICRGYR
Tape and Reel, 1000
Tape and Reel, 1000
Tape and Reel, 250
Tape and Reel, 1000
Tape and Reel, 250
Tape and Reel, 2500
Tape and Reel, 250
Tape and Reel, 2500
Tube, 50
Tape and Reel, 2500
Tube, 50
Tape and Reel, 2500
Tube, 50
Tape and Reel, 2500
Tubes, 75
Tape and Reel, 2500
Tubes, 75
ORDERING
NUMBER
DAC8830ID
TRANSPORT
MEDIA,
QUANTITY
Tubes, 75
PRODUCT
DAC8830ID
DAC8830IBD
DAC8830ICD
DAC8831ID
DAC8831IBD
DAC8831ICD
DAC8831IRGY
DAC8831IBRGY
DAC8831ICRGY
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI
website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
DAC8830, DAC8831
V
DD
to AGND
Digital input voltage to DGND
V
OUT
to AGND
AGND, AGNDF, AGNDS to DGND
Operating temperature range
Storage temperature range
Junction temperature range (T
J
max)
Power dissipation
QFN-14
Thermal impedance,
θ
JA
SO-8
SO-14
(1)
–0.3 to +7
–0.3 to +V
DD
+ 0.3
–0.3 to +V
DD
+ 0.3
–0.3 to +0.3
–40 to +85
–65 to +150
+150
(T
J
max - T
A
) /
θ
JA
54.9
136.9
66.6
UNIT
V
V
V
V
°C
°C
°C
W
°C/W
°C/W
°C/W
Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. Exposure to absolute
maximum conditions for extended periods may affect device reliability.
2
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DAC8830
DAC8831
www.ti.com
SLAS449C – FEBRUARY 2005 – REVISED NOVEMBER 2006
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= T
MIN
to T
MAX
, V
DD
= +3 V or V
DD
= +5 V, V
REF
= +2.5 V unless otherwise noted; specifications subject
to change without notice.
DAC8830, DAC8831
PARAMETER
STATIC PERFORMANCE
Resolution
DAC8830ICD,
DAC8831ICD,
DAC8831ICRGY
Linearity error
DAC8830IBD,
DAC8831IBD,
DAC8831IBRGY
DAC8830ID,
DAC8831ID,
DAC8831IRGY
Differential linearity error
Gain error
Gain drift
Zero code error
Zero code drift
OUTPUT CHARACTERISTICS
Voltage output
(1)
Output impedance
Settling time
Slew
rate
(2)
To 1/2 LSB of FS, C
L
= 10 pF
C
L
= 10 pF
1 LSB change around major carry
All devices
DAC8831 only
Unipolar operation
Bipolar operation
0
–V
REF
6.25
1
25
10
0.2
DAC8830
DAC8831
T
A
= +25°C
V
DD
varies
±10%
DAC8831 only
R
FB
/ R
INV
Ratio error
T
A
= +25°C
T
A
= –40°C to +85°C
±0.2
1
±0.0015
±0.25
±0.0076
±5
±7
10
18
±1
+V
REF
+V
REF
V
V
kΩ
µs
V/µs
nV-s
nV-s
nV/√Hz
LSB
Ω/Ω
%
LSB
ppm/°C
T
A
= +25°C
T
A
= –40°C to +85°C
±0.05
All grades
T
A
= +25°C
T
A
= –40°C to +85°C
±0.1
±0.25
±1
±2
16
±0.5
±1
bits
CONDITIONS
MIN
TYP
MAX
UNIT
±0.5
±2
LSB
±0.5
±0.5
±1
±4
±1
±5
±7
LSB
LSB
ppm/°C
LSB
ppm/°C
Digital-to-analog glitch
Digital feedthrough
(3)
Output noise
Power-supply rejection
Bipolar resistor
matching
Bipolar zero error
Bipolar zero drift
DAC8831 only
DAC8831 only
(1)
(2)
(3)
The DAC8830 output is unipolar (0 V to +V
REF
). The DAC8831 output is bipolar (±V
REF
) when it connects to an external buffer (see the
Bipolar Output Operation
section for details).
Slew Rate is measure from 10% to 90% of transition when the output changes from 0 to full scale.
Digital feedthrough is defined as the impulse injected into the analog output from the digital input. It is measured when the DAC output
does not change; CS is held high, while SCLK and DIN signals are toggled.
Submit Documentation Feedback
3
DAC8830
DAC8831
www.ti.com
SLAS449C – FEBRUARY 2005 – REVISED NOVEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= T
MIN
to T
MAX
, V
DD
= +3 V or V
DD
= +5 V, V
REF
= +2.5 V unless otherwise noted; specifications subject
to change without notice.
DAC8830, DAC8831
PARAMETER
REFERENCE INPUT
Reference input voltage range
Reference input impedance
(4)
Reference –3dB bandwidth, BW
Reference feedthrough
Signal-to-noise ratio, SNR
Reference input capacitance
DIGITAL INPUTS
V
IL
V
IH
Input low voltage
V
DD
= 2.7 V
V
DD
= 5 V
V
DD
= 2.7 V
V
DD
= 5 V
2.1
2.4
±1
10
0.4
0.6
0.8
V
Code = 0000h
Code = FFFFh
Unipolar mode
Bipolar mode, DAC8831
Code = FFFFh
Code = 0000h, V
REF
= 1 V
PP
at 100 kHz
1.25
9
7.5
1.3
1
92
75
120
V
DD
V
kΩ
MHz
mV
dB
pF
CONDITIONS
MIN
TYP
MAX
UNIT
Input high voltage
Input current
Input capacitance
Hysteresis voltage
V
µA
pF
V
POWER SUPPLY
V
DD
I
DD
Power-supply voltage
Power-supply current
V
DD
= 3 V
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 5 V
–40
2.7
5
5
15
25
5.5
20
20
60
100
V
µA
µW
Power
TEMPERATURE RANGE
Specified performance
+85
°C
(4)
Reference input resistance is code-dependent, minimum at 8555h.
4
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DAC8830
DAC8831
www.ti.com
SLAS449C – FEBRUARY 2005 – REVISED NOVEMBER 2006
PIN CONFIGURATION (NOT TO SCALE)
D PACKAGE
SO-8
(TOP VIEW)
V
OUT
AGND
V
REF
CS
1
2
3
4
8
7
6
5
V
DD
DGND
SDI
SCLK
RFB
V
OUT
AGNDF
AGNDS
V
REF
−S
V
REF
−F
CS
D PACKAGE
SO-14
(TOP VIEW)
1
2
3
4
5
6
7
14
13
V
DD
INV
DGND
LDAC
SDI
NC
SCLK
RFB
1
V
DD
14
RGY PACKAGE
QFN-14
(TOP VIEW)
DGND
LDAC
SDI
10
INV
NC
9
8 SCLK
7 CS
6
V
REF
−F
DAC8830
DAC8831
12
11
10
9
8
13
12
11
DAC8831
Thermal Pad
(1)
2
V
OUT
3
AGNDF
4
AGNDS
5
V
REF
−S
NOTE: (1) Exposed thermal pad in the QFN package
must be connected to analog ground.
TERMINAL FUNCTIONS
TERMINAL
NO.
DAC8830
1
2
3
4
5
6
7
8
DAC8831
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RFB
V
OUT
AGNDF
AGNDS
V
REF–
S
V
REF–
F
CS
SCLK
NC
SDI
LDAC
DGND
INV
V
DD
Feedback resistor. Connect to the output of external operational amplifier in bipolar mode.
Analog output of DAC
Analog ground (Force)
Analog ground (Sense)
Voltage reference input (Sense). Connect to external voltage reference
Voltage reference input (Force). Connect to external voltage reference
Chip select input (active low). Data is not clocked into SDI unless CS is low.
Serial clock input.
No internal connection
Serial data input. Data is latched into input register on the rising edge of SCLK.
Load DAC control input. Active low. When LDAC is Low, the DAC latch is simultaneously updated with the
content of the input register.
Digital ground
Junction point of internal scaling resistors. Connect to external operational amplifier inverting input in bipolar
mode.
Analog power supply, +3 V to +5 V.
V
OUT
AGND
V
REF
CS
SCLK
SDI
DGND
V
DD
Analog output of DAC
Analog ground
Voltage reference input
Chip select input (active low). Data is not clocked into SDI unless CS is low
Serial clock input
Serial data input. Data is latched into input register on the rising edge of SCLK.
Digital ground
Analog power supply, +3 V to +5 V
NAME
DESCRIPTION
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