Burr Brown Corporation DAC2815BP, DAC2815 Datasheet
®
DUAL 12-BIT DIGITAL-TO-ANALOG
CONVERTER (8-Bit Port Interface)
FEATURES
● COMPLETE DUAL DAC —
INCLUDES INTERNAL REFERENCES AND
OUTPUT AMPLIFIERS
● GUARANTEED SPECIFICATIONS OVER
TEMPERATURE
● GUARANTEED MONOTONIC OVER
TEMPERATURE
DAC2815
● HIGH-SPEED 8 + 4-BIT PARALLEL
INTERFACE
● LOW POWER: 300mW (150mW/DAC)
● LOW GAIN DRIFT: 5ppm/
● LOW NONLINEARITY:
● UNIPOLAR OR BIPOLAR OUTPUT
● CLEAR/RESET TO UNIPOLAR OR
BIPOLAR ZERO
°C
±1/2 LSB max
DESCRIPTION
The DAC2815 is one in a family of dual and quad 12bit digital-to-analog converters (DACs). Serial, 8-bit,
12-bit interfaces are available.
The DAC2815 is complete. It contains CMOS logic,
switches, a high-performance buried-zener reference,
and low-noise bipolar output amplifiers. No external
components are required for either unipolar 0 to 10V,
0 to –10V, or bipolar ±10V output ranges.
The DAC2815 has a 2-byte (8 + 4) double-buffered
interface. Data is first loaded (level transferred) into
the input registers in two steps for each DAC. Then
both DACs are updated simultaneously. The DAC has
an asynchronous clear control for reset to unipolar or
bipolar zero depending on the mode selected. This
feature is useful for power-on reset or system calibration. The DAC2815 is packaged in a 28-pin plastic
DIP rated for the –40°C to +85°C extended industrial
temperature range.
High-stability laser-trimmed thin film resistors assure
high reliability and true 12-bit integral and differential
linearity over the full specified temperature range.
+V
L
+V
S
–V
S
AGND
DGND
8-Bit
Port and
Control In
DAC2815
10
12
8
11
28
Logic
10V
Ref
DAC A
DAC B
10kΩ
10kΩ
A
3
20kΩ
20kΩ
A
1
20kΩ
20kΩ
A
2
17
18
14
13
20
16
19
15
+V Out
REF
Inv In
Inv Out
V In
REF
BPO A
V A
OUT
BPO B
V B
OUT
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1991 Burr-Brown Corporation PDS-1110B Printed in U.S.A. October, 1993
SPECIFICATIONS, Guaranteed over T
= –40°C to +85°C unless otherwise specified.
A
ELECTRICAL
Specifications as shown for VS = ±12V or ±15V, VL = +5V, and RL = 2kΩ unless otherwise noted.
DAC2815AP DAC2815BP
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
DIGITAL INPUTS
Resolution 12 * Bits
V
(Input High Voltage) 2 5 * * V
IH
V
(Input Low Voltage) 0 0.8 * * V
IL
I
( Input Current) TA = 25°C ±1*µA
IN
C
(Input Capacitance) 0.8 * pF
IN
ACCURACY
Integral, Relative Linearity
Differential Nonlinearity
(1)
(2)
Unipolar Offset Error T
Bipolar Zero Error ±20 ±10 mV
Gain Error Unipolar, Bipolar With Internal or External 10.0V Ref ±0.2 ±0.15 %
Power Supply Sensitivity
(3)
TEMPERATURE DRIFT
Gain Drift Unipolar, Bipolar ±5 ±30 * ±20 ppm/°C
Unipolar Offset Drift ±0.1 ±5 * * ppmFSR/°C
Bipolar Zero Drift ±5 ±15 * ±8 ppmFSR/°C
REFERENCE OUTPUT
Output Voltage +9.980 +10 +10.020 +9.985 * +10.015 V
Reference Drift ±2 ±30 * ±20 ppm/°C
Output Current T
Max Load Capacitance (For Stability) 500 * pF
Short Circuit Current ±20 * mA
Load Regulation 40 * ppm/mA
(∆ V
vs ∆ I
OUT
Supply Regulation ±5 * ppm/V
(∆ V
vs ∆ VS)
OUT
INVERTER
–10V Reference
)
LOAD
(4)
, Inverter Output –10.020 –10 –9.980 –10.015 * –9.985 V
–10V Reference Drift ±30 ±20 ppm/°C
DC Output Impedance 0.1 * Ω
Output Current ±7* mA
Max Load Capacitance (For Stability) 200 * pF
Short Circuit Current ±30 * mA
REFERENCE INPUT
Reference Input Resistance 3.5 5 * * k Ω
Inverter Input Resistance 7 10 * * kΩ
BPO Input Resistance 14 20 * * kΩ
Reference Input Range ±10 * V
ANALOG SIGNAL OUTPUTS
Voltage Range –V
DC Output Impedance 0.1 * Ω
Output Current ±5* mA
Max Load Capacitance (For Stability) V
Short Circuit Current ±30 * mA
DYNAMIC PERFORMANCE
(5)
Unipolar Mode Settling Time To 1/2 LSB of Full Scale 2.5 10 * * µs
Bipolar Mode Settling Time To 1/2 LSB of Full Scale 3.5 10 * * µs
Slew Rate 10 * V/µs
Small-Signal Bandwidth 3 * MHz
ANALOG GROUND CURRENT
(Code Dependent) ±2*mA
DIGITAL CROSSTALK Full Scale Transition 3 * nV-s
D/A GLITCH IMPULSE 30 * nV-s
T
= –40°C to +85°C ±10 * µA
A
±1 ±1/2 LSB
TA = 25°C ±1 * LSB
T
= –40°C to +85°C +1.5/–1 ±1 LSB
A
= +25°C ±1 ±0.5 mV
A
T
= –40°C TO +85°C ±3*mV
A
VS = ±11.4V to ±18V, 30 * ppmFSR/V
V
= +4.5V to +5.5V
L
= 25°C +10/–5 * mA
A
T
= –40°C to +85°C +6.5/–5 * mA
A
+ 1.4 +VS – 1.4 * * V
S
OUT
500 * pF
CL = 100pF
C
= 100pF
L
®
DAC2815
2
®
SPECIFICATIONS (CONT), Guaranteed over T
= –40°C to +85°C unless otherwise specified.
A
ELECTRICAL
Specifications as shown for VS = ±12V or ±15V, VL = +5V, and RL = 2kΩ unless otherwise noted.
DAC2815AP DAC2815BP
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
POWER SUPPLY
+V
and –V
S
+V
+I
–I
+I
+I
Total Power, All DACs 300 410 * * mW
TEMPERATURE RANGE
Specified –40 +85 * * °C
Operating –40 +85 * * °C
Thermal Resistance,
NOTES: (1) End point linearity. (2) Guaranteed monotonic. (3) Change in bipolar full scale output. Includes voltage output DAC, voltage reference, and reference
inverter. (4) Inverter output with inverter input connected to +V
S
L
S
S
L
L
θ
JA
Digital Inputs = 0V or +V
Digital Inputs = VIL or V
. (5) Guaranteed but not tested.
REF
IH
±11.4 ±15 ±18 * * * V
4.5 5 5.5 * * * V
L
+10 +13.5 * * mA
–10 –13.5 * * mA
0.2 1 * * mA
5*mA
75 * °C/W
ELECTROSTATIC
DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from
performance degradation to complete device failure. BurrBrown Corporation recommends that all integrated circuits be
handled and stored using appropriate ESD protection
methods.
PACKAGE INFORMATION
MODEL PACKAGE NUMBER
PACKAGE DRAWING
DAC2815AP 28-Pin Plastic DIP 215
DAC2815BP 28-Pin Plastic DIP 215
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
(1)
ABSOLUTE MAXIMUM RATINGS
+VL to AGND................................................................................. 0V, +7V
+V
to DGND ................................................................................ 0V, +7V
L
+V
to AGND .............................................................................. 0V, +18V
S
–V
to AGND ............................................................................... 0V,–18V
S
AGND to DGND ................................................................................ ±0.3V
Any digital input to DGND .............................................. –0.3V, +V
Ref In to AGND .................................................................................. ±25V
Ref In to DGND .................................................................................. ±25V
Storage Temperature Range .......................................... –55°C to +125°C
Operating Temperature Range ......................................... –40°C to +85°C
Lead Temperature (soldering, 10s)................................................ +300°C
Junction Temperature .................................................................... +155°C
Output Short Circuit ................................... Continuous to common or ±V
Reference Short Circuit..............................Continuous to common or +V
L
ORDERING INFORMATION
MODEL (LSB)
DAC2815AP ±1
DAC2815BP ±1/2
LINEARITY ERROR
+0.3V
S
S
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
3
DAC2815
PIN DESIGNATIONS
PIN DESCRIPTOR FUNCTION PIN DESCRIPTOR FUNCTION
1D
6
2D
7
3A
0
4A
1
5 CLR Asychronous input reset to zero 24 D
6 MODE Selection input for unipolar or bipolar reset to zero 23 D
7 CS Chip select enable, DAC A and DAC B 22 D
8–V
9 LE Latch data enable, DAC A and DAC B 20 BPO A Bipolar offset input, DAC A
10 +V
11 AGND Analog common 18 Inv In Inverter (A3) input
12 +V
13 V
14 Inv Out Inverter (A
S
L
S
In ± Reference voltage input 16 V
REF
Data bit 6 input 28 DGND Digital common
Data bit 7 input 27 D
Address 0 input 26 D
Address 1 input 25 D
Negative analog power supply, –15V input 21 WR Write input, DAC A and DAC B
5
4
3
2
1
0
Data bit 5 input
Data bit 4 input
Data bit 3 input
Data bit 2 input
Data bit 1 input
Data bit 0 input
Positive logic power supply, +5V input 19 BPO B Bipolar offset input, DAC B
Positive analog power supply, +15V input 17 +V
) output 15 V
3
Out Reference voltage, +10V output
REF
A Analog output voltage, DAC A
OUT
B Analog output voltage, DAC B
OUT
PIN CONFIGURATION
Top View
Top View DIP
D6
CLR
MODE
CS
–V
+V
AGND
+V
V
REF
Inv Out
LE
1
D
2
7
A
3
0
A
4
1
5
DAC2815
6
7
8
S
9
10
L
11
12
S
In
13
14
28
DGND
27
D
5
26
D
4
25
D
3
24
D
2
23
D
1
22
D
0
21
WR
20
BPO A
19
BPO B
18
Inv In
17
16
15
+V
V
V
OUT
OUT
REF
Out
A
B
TYPICAL PERFORMANCE CURVES
TA = +25°C, VS = ±12V or ±15V, VL = +5V unless otherwise noted.
80
70
60
50
40
PSRR (dB)
30
20
10
0
1k 10k 100k 1M
PSRR vs FREQUENCY (Bipolar Mode)
V
= +10V
OUT
Frequency (Hz)
®
DAC2815
= 0V
V
OUT
4
250
NOISE vs BANDWIDTH (Bipolar Mode)
200
150
100
Voltage Noise (µVrms)
50
0
100 1k 10k 100k 1M
V
OUT
FFF
= +10V
HEX
V
OUT
800
Frequency (Hz)
= 0V
HEX
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