signed to interface to an 8-bit microprocessor bus. 16-
bit data is loaded in two successive 8-bit bytes into
parallel 8-bit latches before being transferred into the
D/A latch. The DAC708 and DAC709 are current and
voltage output models respectively and are in 24-pin
hermetic DIPs. Input coding is Binary Two’s Comple-
ment (bipolar) or Unipolar Straight Binary (unipolar,
when an external logic inverter is used to invert the
MSB). In addition, the DAC708/709 can be loaded
serially (MSB first).
The DAC707 is designed to interface to a 16-bit bus.
8-Bit
(DAC708, 709)
or
16-Bit
(DAC707)
Serial
Data
Low
Byte
Latch
High
Byte
Latch
D/A
Latch
Reference
Circuit
16-Bit
D/A
Con-
verter
Bipolar
Offset
Data is written into a 16-bit latch and subsequently the
D/A latch. The DAC707 has bipolar voltage output
and input coding is Binary Two’s Complement (BTC).
All models have Write and Clear control lines as well
as input latch enable lines. In addition, DAC708 and
DAC709 have Chip Select control lines. In the bipolar
mode, the Clear input sets the D/A latch to give zero
voltage or current output. They are all 14-bit accurate
and are complete with reference, and for the DAC707,
and DAC709, a voltage output amplifier. All models
are available with an optional burn-in screening.
Summing Junction
(708, 709)
10V Range
(708, 709)
Serial
(DAC708, 709)
V
OUT
Latch Enables/
Mode Select
CLEAR
WRITE
CHIP SELECT
Control
Logic
DAC707 or DAC709
Only
DAC707/708/709 Block Diagram
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
= +5V, and after a 10-minute warm-up, unless otherwise noted.
DAC707/708/709KH,
DAC707KP
MAX
MIN
TYP
MAX
MIN
DAC707/708/
709BH, SH
TYP
MAX
UNITS
DAC707JP
PRODUCT
INPUT
DIGITAL INPUT
Resolution
Bipolar Input Code (all models)
Unipolar Input Code
(1)
(DAC708/709 only)
Logic Levels
(2)
: V
IH
V
IL
I
IH
(V
I
= +2.7V)
I
IL
(V
I
= +0.4V)
TRANSFER CHARACTERISTICS
ACCURACY
(3)
Linearity Error
Differential Linearity Error
(5)
at Bipolar Zero
(5, 6)
Gain Error
(7)
Zero Error
(7)
Monotonicity Over Spec Temp Range
Power Supply Sensitivity: +V
CC,
–V
CC
V
DD
DRIFT
(Over Spec Temp Range
(3)
)
Total Error Over Temp Range
(8)
Total Full Scale Drift
Gain Drift
Zero Drift: Unipolar (DAC708/709 only)
Bipolar (all models)
Differential Linearity Over Temp
(5)
Linearity Error Over Temp
(5)
SETTLING TIME
(to
±0.003%
of FSR)
(9)
Voltage Output Models
Full Scale Step (2kΩ load)
1LSB Step at Worst Case Code
(10)
Slew Rate
Current Output Models
Full Scale Step (2mA): 10 to 100Ω Load
1kΩ Load
OUTPUT
VOLTAGE OUTPUT MODELS
Output Voltage Range
DAC709: Unipolar (USB Code)
Bipolar (BTC Code)
DAC707 Bipolar (BTC Code)
Output Current
Output Impedance
Short Circuit to Common Duration
CURRENT OUTPUT MODELS
Output Current Range (±30% typ)
DAC708: Unipolar (USB Code)
Bipolar (BTC Code)
Unipolar Output Impedance (±30% typ)
Bipolar Output Impedance (±30% typ)
Compliance Voltage
±0.003
±0.0045
±0.07
±0.05
13
±0.0015
±0.0001
±0.08
±10
±10
±5
±0.006
±0.001
±0.006
±0.012
±0.30
±0.1
16
Binary Two’s Complement
+2.0
–1.0
+5.5
+0.8
1
1
MIN
TYP
*
*
Unipolar Straight Binary
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Bits
V
V
µA
µA
±0.0015
±0.003
±0.003
*
*
14
*
*
*
*
*
±2.5
*
±0.003
±0.006
±0.006
±0.15
*
14
*
*
±0.15
±25
±25
±5
±12
+0.009,
–0.006
±0.006
*
*
±0.0015
±0.05
*
*
*
*
*
±7
±1.5
±4
*
*
±0.003
±0.10
*
±0.003
*
±0.10
±15
±15
±3
±10
*
*
% of FSR
(4)
% of FSR
% of FSR
%
% of FSR
Bits
% of FSR/%V
CC
% of FSR/%V
DD
% of FSR
ppm of FSR/°C
ppm/°C
ppm of FSR/°C
ppm of FSR/°C
% of FSR
% of FSR
±30
±15
±0.012
±0.012
4
2.5
10
*
*
*
350
1
8
4
*
*
*
*
*
8
4
µs
µs
V/µs
ns
µs
±5
±10
*
0.15
Indefinite
0 to +10
±5, ±10
*
*
*
*
*
*
*
*
*
V
V
V
mA
Ω
0 to –2
±1
4.0
2.45
±2.5
*
*
*
*
*
mA
mA
kΩ
kΩ
V
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.
®
DAC707/708/709
2
ELECTRICAL (CONT)
At T
A
= +25°C, V
CC
=
±15V,
V
DD
= +5V, and after a 10-minute warm-up, unless otherwise noted.
DAC707/708/709KH,
DAC707KP
MAX
MIN
TYP
MAX
MIN
DAC707/708/
709BH, SH
TYP
MAX
UNITS
DAC707JP
PRODUCT
POWER SUPPLY REQUIREMENTS
Voltage (all models): +V
CC
–V
CC
V
DD
Current (No Load, +15V Supplies)
Current Output Models: +V
CC
–V
CC
V
DD
Voltage Output Models: +V
CC
–V
CC
V
DD
Power Dissipation (±15V supplies)
Current Output Models
Voltage Output Models
TEMPERATURE RANGE
Specification: BH Grades
JP, KP, KH Grades
SH Grades
Storage: Ceramic
Plastic
+13.5
–13.5
+4.5
+15
–15
+5
+16.5
–16.5
+5.5
MIN
TYP
*
*
*
*
*
*
+10
–13
+5
*
*
*
370
*
*
*
*
+25
–25
+10
*
*
*
800
950
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
V
V
V
mA
mA
mA
mA
mA
mA
mW
mW
+16
–18
+5
+30
–30
+10
535
–25
0
+70
*
–65
*
*
+150
*
–55
–65
+85
+125
+150
–60
+100
°C
°C
°C
°C
°C
*Specification same as for models in column to the left.
NOTES: (1) MSB must be inverted externally prior to DAC708/709 input. (2) Digital inputs are TTL, LSTTL, 54/74C, 54/74HC and 54/74HTC compatible over the specified
temperature range. (3) DAC708 (current-output models) are specified and tested with an external output operational amplifier connected using the internal feedback
resistor in all tests. (4) FSR means Full Scale Range. For example, for
±10V
output, FSR = 20V. (5)
±0.0015%
of Full Scale Range is equal to 1 LSB in 16-bit resolution,
±0.003%
of Full Scale Range is equal to 1 LSB in 15-bit resolution.
±0.006%
of Full Scale Range is equal to 1 LSB in 14-bit resolution. (6) Error at input code 0000
H
.
(For unipolar connection on DAC708/709, the MSB must be inverted externally prior to D/A input.) (7) Adjustable to zero with external trim potentiometer. Adjusting the
gain potentiometer rotates the transfer function around the bipolar zero point. (8) With gain and zero errors adjusted to zero at +25°C. (9) Maximum represents the 3σ
limit. Not 100% tested for this parameter. (10) The bipolar worst-case code change is FFFF
H
to 0000
H
and 0000
H
to FFFF
H
. For unipolar (DAC708/709 only) it is 7FFF
H
to 8000
H
and 8000
H
to 7FFF
H
.
PACKAGE INFORMATION
PRODUCT
DAC707JP
DAC707KP
DAC707BH
DAC707KH
DAC707SH
DAC708BH
DAC708KH
DAC708SH
DAC709BH
DAC709KH
DAC709SH
PACKAGE
28-Pin Plastic DBL Wide DIP
28-Pin Plastic DBL Wide DIP
28LD Side Brazed
Hermetic Dip
28LD Side Brazed
Hermetic DIP
28LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
24LD Side Brazed
Hermetic DIP
PACKAGE DRAWING
NUMBER
(1)
215
215
149
149
149
165
165
165
165
165
165
ABSOLUTE MAXIMUM RATINGS
V
DD
to COMMON ........................................................................ 0V, +15V
+V
CC
to COMMON ..................................................................... 0V, +18V
–V
CC
to COMMON ...................................................................... 0V, –18V
Digital Data Inputs to COMMON ..................................... –0.5V, V
DD
+0.5
DC Current any input .....................................................................
±10mA
Reference Out to COMMON ...................... Indefinite Short to COMMON
V
OUT
(DAC707, DAC709) ........................... Indefinite Short to COMMON
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