DAC9331-14 - API Technologies

D AC9331-14
D ata Converter Line
14-Bit Multiplying D AC
FEATURES
• 14-bit resolution and accuracy
• 2 and 4-quadrant multiplication
• Precision laser trimmed ladder
• Low power
• Single power supply operation
• Reliable
DESCRIPTION
The DA C9331-14 is a low cost 14-bit multiplying
digital-to-analog converter packaged in a unique
24-pin double DIP. Capable of 2 and 4-quadrant
multiplication, the unit is TTL/DTL and CM OS compatible with power consumption less than 30mW .
Power supply options include +5V (-1) or + 15V (-2).
Outstanding features of the DA C9331-14 include:
True 14-bit performance —Up to 14-bit resolution
and accuracy over the 0˚ to 70˚C operating range.
Reliability plus — Packaged in a unique enclosure
t h at has undergone extensive environmental
testing during its development. The DA C9331-14 is
continuously monitored during all assembly and
test operations by our quality control organization.
Reliability is enhanced by batch-processed, precision laser-trimmed resistor networks fabricated in
our own facility. Similar to monoli thic circuits, the
networks are processed and functionally trimmed
to assure consistent performance.
2 and 4-q uadrant m ultiplication —Reference input
range to ±25 volts.
Low pow er — CM OS technology provides less than
30mW total power dissipation — a real battery
saver.
FUNCTIONAL DIAGRAM
+V DD
23
25k
V REF
25k
25k
24
50k
50k
50k
50k
50k
12
S1
S2
S3
2
5
6
7
13
25k
3
1
Bit 1
(M SB)
Bit 2
Bit 3
GND
S14
Bit 14
(LSB)
165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168
www.SpectrumMicrowave.com
I
OUT 2
I
OUT 1
R FEEDBA CK
SW ITCHES A RE
SHOW N IN THE
HIGH STA TE
DAC9331-14
SPECIFICATIO N S
(Typical @ +25ºC and nominal power supply. VREF = +10V,unless otherwise
noted)
M ODEL
DA C9331-14
TY PE
M ultiplying
DIGITA L INPUT
Resolution
2-Quad. Unipolar Coding
4-Quad. Bipolar Coding
Logic Compatibility
Logic Thresholds
Input Leakage Current
TEM PERA TURE RA NGE
Operating
Storage
0ºC to +70ºC
0ºC to +85ºC
M ECHA NICA L
14-Bits
Binary
Offset Binary
DTL, TTL, CM OS
V IH =3.5V (min),V IL=1.0V (max) 1
±1µA (max)
Case Style
Case Dimensions
24-pin double-DIP
0.65
(16.51)
MAX
0.17
(4.318) M A X
DIM ENSIONS
inches
(mm)
REFERENCE INPUT
V oltage Range
Input Impedance
±25V (max)
25k
A NA LOG OUTPUT
Gain A ccuracy2
Offset 3
Output Leakage
Small Signal
3dB Bandwidth
Output Capacitance
C out 1
C out 2
C out 1
C out 2
28
0.1%
50µV (max)
40nA (max)
600kHz (min)
15
100pF (max) all inputs high
30pF (max) all inputs high
30pF (max) all inputs low
100pF (max) all inputs low
±1/2 LSB (max)
±1/2 LSB (typ), ±1 LSB (max)
DY NA M IC PERFORM A NCE
M ajor Carry Transition
Settling to ±0.05%
3.0µS (max)
Reference Feedthrough Error
(V ref=20V pp @ 10kHz)
10mV pp
STA BILITY 3 (Over Specified Temp. Range)
Scale Factor 5
Linearity
Differential Linearity
±3ppm/ºC F.S.R. (max)
±3ppm/ºC F.S.R. (max)
±2ppm/ºC F.S.R. (max)
POW ER SUPPLY (V DD ) 6
V oltage Range @ Current
-1 Option
-2 Option
Rejection Ratio
Total Dissipation
(inputs at GND)
+5V (nom); +4.75V to
+7V @ <1mA
+15V (nom); +11.5V to
+15.5V @ 2mA
0.005% /% (typ),
0.007% /% (max)
14
BOTTOM
V IEW
PIN
1
2
3
4
5
6
7
8
9
10
11
12
0.17
TY P
(4.32)
1
0.120
(3.048)
STA TIC PERFORM A NCE
Integral Linearity4
Differential Linearity
PIN 1 DOT
0.600
(15.240)
1.340
(34.036)
MAX
0.100
(2.540)
TY P
0.010 x 0.020
(0.254) (0.508)
FUNCTION
R FEEDBA CK
IOUT 2
IOUT 1
N.C.
BIT 1 (M SB)
BIT 2
BIT 3
BIT 4
N.C.
N.C.
N.C.
GROUND
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
V REF
+V DD
BIT 5
BIT 6
BIT 7
BIT8
BIT 9
BIT 10
BIT11
BIT 13
BIT 13
BIT 14 (LS8)
Note: N.C. means no connection
NOTES
1. The switching threshold is typically V DD /2 for –1 models
and V DD /6 for –2 models.
The logic input must never exceed V DD /3 (or –2 models.
2. Using internal feedback resistor.
3. Using the internal Ffeedback with nulled external
amplifier in a constant 25ºC ambient. (Offset doubles every 10ºC).
4. Best straight line method of test.
5. The DA C9331-14 Series is designed to be used only in those applications
where the current output is virtual ground: i.e., the summing junction
of an op amp in the inverting mode. The internal feedback resistor
(R feedback) must be used to achieve temperature tracking.
See A PPLICA TIONS INFORM A TION for recommended
circuit configurations.
6. The power supply voltage must not exceed +10V for the
–1 versions or +15.5V for the –2 versions.
30mW (max)
ORDERING INFORM A TION
Consult factory for application information.
M ODEL NUM BER
DESCRIPTION
OA C9331-14-1
DA C9331-14-2
14-Bit M DA C, +5V Operation
14-Bit M DA C, +15V Operation
Specifications subject to change without notice.