a 8-Bit, High-Speed, Multiplying D/A Converter
(Universal Digital Logic Interface)
DAC08
FEATURES
Fast Settling Output Current: 85 ns Full-Scale Current Prematched to 1 LSB
Direct Interface to TTL, CMOS, ECL, HTL, PMOS Nonlinearity to 0.1% Maximum over
Temperature Range
High Output Impedance and Compliance: –10 V to +18 V
Complementary Current Outputs
Wide Range Multiplying Capability: 1 MHz Bandwidth Low FS Current Drift: 10 ppm/ C
Wide Power Supply Range: 4.5 V to 18 V Low Power Consumption: 33 mW @ 5 V
Low Cost
Available in Die Form
GENERAL DESCRIPTION
The DAC08 series of 8-bit monolithic digital-to-analog converters provide very high-speed performance coupled with low cost and outstanding applications flexibility.
Advanced circuit design achieves 85 ns settling times with very low “glitch” energy and at low power consumption. Monotonic multiplying performance is attained over a wide 20-to-1 reference current range. Matching to within 1 LSB between reference and
full-scale currents eliminates the need for full-scale trimming in most applications. Direct interface to all popular logic families with full noise immunity is provided by the high swing, adjustable threshold logic input.
High voltage compliance complementary current outputs are provided, increasing versatility and enabling differential operation to effectively double the peak-to-peak output swing. In many applications, the outputs can be directly converted to voltage without the need for an external op amp.
All DAC08 series models guarantee full 8-bit monotonicity, and nonlinearities as tight as ± 0.1% over the entire operating temperature range are available. Device performance is essentially unchanged over the ± 4.5 V to ± 18 V power supply range, with 33 mW power consumption attainable at ± 5 V supplies.
The compact size and low power consumption make the DAC08 attractive for portable and military/aerospace applications; devices processed to MIL-STD-883, Level B are available.
DAC08 applications include 8-bit, 1 s A/D converters, servo motor and pen drivers, waveform generators, audio encoders and attenuators, analog meter drivers, programmable power supplies, CRT display drivers, high-speed modems and other applications where low cost, high speed and complete input/ output versatility are required.
FUNCTIONAL BLOCK DIAGRAM
V+ |
VLC |
MSB |
B2 |
B3 |
B4 |
B5 |
B6 |
B7 |
LSB |
B1 |
B8 |
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13 |
1 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
DAC08 |
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BIAS |
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IOUT |
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4 |
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NETWORK |
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2 |
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CURRENT |
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14 |
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IOUT |
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SWITCHES |
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VREF (+) |
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15 |
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VREF (–) |
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REFERENCE |
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AMPLIFIER |
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16 |
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3 |
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COMP |
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V– |
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REV. B
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 that 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 |
www.analog.com |
Fax: 781/326-8703 |
© Analog Devices, Inc., 2002 |
DAC08–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ VS = 15 V, IREF = 2.0 mA, –55 C TA +125 C for DAC08/08A, 0 C TA +70 C for DAC08E and DAC08H, –40 C to +85 C for DAC08C, unless otherwise noted. Output characteristics refer to both IOUT and IOUT .)
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DAC08A/H |
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DAC08E |
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DAC08C |
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Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Min |
Typ |
Max |
Min |
Typ |
Max |
Unit |
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Resolution |
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8 |
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8 |
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8 |
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Bits |
Monotonicity |
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8 |
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8 |
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8 |
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Bits |
Nonlinearity |
NL |
To ±1/2 LSB, |
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±0.1 |
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±0.19 |
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±0.39 |
% FS |
Settling Time |
tS |
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85 |
135 |
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85 |
150 |
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85 |
150 |
ns |
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All Bits Switched ON |
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or OFF, TA = 25°C1 |
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Propagation Delay |
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Each Bit |
tPLH |
TA = 25°C1 |
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35 |
60 |
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35 |
60 |
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35 |
60 |
ns |
All Bits Switched |
tPHL |
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35 |
60 |
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35 |
60 |
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35 |
60 |
ns |
Full-Scale Tempco1 |
TCIFS |
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±10 |
±50 |
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±10 |
±80 |
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±10 |
±80 |
ppm/°C |
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DAC08E |
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±50 |
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Output Voltage |
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Compliance |
VOC |
Full-Scale Current |
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(True Compliance) |
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Change <1/2 LSB, |
–10 |
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+18 |
–10 |
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+18 |
–10 |
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+18 |
V |
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ROUT > 20 MΩ typ |
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Full Range Current |
IFR4 |
VREF = 10.000 V |
1.984 |
1.992 |
2.000 |
1.94 |
1.99 |
2.04 |
1.94 |
1.99 |
2.04 |
mA |
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R14, R15 = 5.000 kΩ |
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TA = 25°C |
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±0.5 |
± 4 |
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± 1 |
± 8 |
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± 2 |
±16 |
µA |
Full Range Symmetry |
IFRS |
IFR4 – IFR2 |
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Zero-Scale Current |
IZS |
R14, R15 = 5.000 kΩ |
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0.1 |
1 |
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0.2 |
2 |
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0.2 |
4 |
µA |
Output Current Range |
IOR1 |
2.1 |
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2.1 |
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2.1 |
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mA |
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IOR2 |
VREF = +15.0 V, |
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V– = –10 V |
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VREF = +25.0 V, |
4.2 |
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4.2 |
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4.2 |
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mA |
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V– = –12 V |
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Output Current Noise |
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IREF = 2 mA |
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25 |
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25 |
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25 |
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nA |
Logic Input Levels |
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Logic “0” |
VIL |
VLC = 0 V |
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0.8 |
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0.8 |
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0.8 |
V |
Logic Input “1” |
VIL |
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2 |
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2 |
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2 |
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V |
Logic Input Current |
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VLC = 0 V |
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µA |
Logic “0” |
IIL |
VIN = –10 V to +0.8 V |
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–2 |
–10 |
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–2 |
–10 |
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–2 |
–10 |
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Logic Input “1” |
IIH |
VIN = 2.0 V to 18 V |
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0.002 |
10 |
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0.002 |
10 |
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0.002 |
10 |
µA |
Logic Input Swing |
VIS |
V– = –15 V |
–10 |
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+18 |
–10 |
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+18 |
–10 |
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+18 |
V |
Logic Threshold Range |
VTHR |
VS = ±15 V1 |
–10 |
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+13.5 |
–10 |
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+13.5 |
–10 |
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+13.5 |
V |
Reference Bias Current |
I15 |
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–1 |
–3 |
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–1 |
–3 |
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–1 |
–3 |
µA |
Reference Input |
dI/dt |
REQ = 200 Ω |
4 |
8 |
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4 |
8 |
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4 |
8 |
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mA/µs |
Slew Rate |
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RL = 100 Ω |
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CC = 0 pF See Fast Pulsed Ref. Info Following.1 |
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Power Supply Sensitivity |
PSSIFS+ |
V+ = 4.5 V to 18 V |
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±0.0003 ±0.01 |
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± 0.0003 |
±0.01 |
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± 0.0003 |
±0.01 |
%∆IO/%∆V+ |
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PSSIFS– |
V– = –4.5 V to –18 V |
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± 0.002 |
±0.01 |
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± 0.002 |
±0.01 |
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± 0.002 |
±0.01 |
%∆IO/%∆V– |
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IREF = 1.0 mA |
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Power Supply Current |
I+ |
VS = ±5 V, IREF = 1.0 mA |
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2.3 |
3.8 |
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2.3 |
3.8 |
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2.3 |
3.8 |
mA |
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I– |
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–4.3 |
–5.8 |
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–4.3 |
–5.8 |
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–4.3 |
–5.8 |
mA |
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I+ |
VS = +5 V, –15 V, |
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2.4 |
3.8 |
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2.4 |
3.8 |
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2.4 |
3.8 |
mA |
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I– |
IREF = 2.0 mA |
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–6.4 |
–7.8 |
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–6.4 |
–7.8 |
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–6.4 |
–7.8 |
mA |
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I+ |
VS = ±15 V, |
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2.5 |
3.8 |
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2.5 |
3.8 |
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2.5 |
3.8 |
mA |
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I– |
IREF = 2.0 mA |
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–6.5 |
–7.8 |
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–6.5 |
–7.8 |
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–6.5 |
–7.8 |
mA |
Power Dissipation |
PD |
±5 V, IREF = 1.0 mA |
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33 |
48 |
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33 |
48 |
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33 |
48 |
mW |
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+5 V, –15 V, |
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IREF = 2.0 mA |
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108 |
136 |
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103 |
136 |
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108 |
136 |
mW |
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±15 V, IREF = 2.0 mA |
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135 |
174 |
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135 |
174 |
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135 |
174 |
mW |
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NOTES
1Guaranteed by design.
Specifications subject to change without notice.
–2– |
REV. B |
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DAC08 |
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(@ VS = 15 V, and IREF = 2.0 mA, unless otherwise noted. Output |
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TYPICAL ELECTRICAL CHARACTERISTICS characteristics apply to both IOUT and IOUT .) |
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All Grades |
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Parameter |
Symbol |
Conditions |
Typical |
Unit |
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Reference Input Slew Rate |
dI/dt |
TA = 25°C, Any Bit |
8 |
mA/ s |
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Propagation Delay |
tPLH, tPHL |
35 |
ns |
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Settling Time |
tS |
To ± 1/2 LSB, All Bits |
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Switched ON or OFF, |
85 |
ns |
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TA = 25°C |
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Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS1 |
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Operating Temperature |
–55°C to +125°C |
DAC08AQ, Q . . . . . . . . . . . . . . . . . . . . . |
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DAC08HQ, EQ, CQ, HP, EP . . . . . . . . . |
. . . 0°C to +70°C |
DAC08CP, CS . . . . . . . . . . . . . . . . . . . . |
. –40°C to +85°C |
Junction Temperature (TJ) . . . . . . . . . . . . . |
–65°C to +150°C |
Storage Temperature Q Package . . . . . . . . . |
–65°C to +150°C |
Storage Temperature P Package . . . . . . . . . |
–65°C to +125°C |
Lead Temperature (Soldering, 60 sec) . . . . |
. . . . . . . . . 300°C |
V+ Supply to V– Supply . . . . . . . . . . . . . . . |
. . . . . . . . . . 36 V |
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . |
V– to V– plus 36 V |
VLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . V– to V+ |
Analog Current Outputs (at VS– = 15 V) . . . |
. . . . . . . 4.25 mA |
Reference Input (V14 to V15) . . . . . . . . . . . . |
. . . . . . . V– to V+ |
Reference Input Differential Voltage |
± 18 V |
(V14 to V15) . . . . . . . . . . . . . . . . . . . . . . . |
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Reference Input Current (I14) . . . . . . . . . . . |
. . . . . . . . 5.0 mA |
Package Type |
JA2 |
JC |
Unit |
16-Lead Cerdip (Q) |
100 |
16 |
°C/W |
16-Lead Plastic DIP (P) |
82 |
39 |
°C/W |
20-Terminal LCC (RC) |
76 |
36 |
°C/W |
16-Lead SO (S) |
111 |
35 |
°C/W |
NOTES
1Absolute maximum ratings apply to both DICE and packaged parts, unless otherwise noted.
2θJA is specified for worst-case mounting conditions, i.e., θJA is specified for device in socket for cerdip, Plastic DIP, and LCC packages; θJA is specified for device soldered to printed circuit board for SO package.
ORDERING GUIDE1
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Temperature |
Package |
Package |
# Parts Per |
Model |
NL |
Range |
Description |
Option |
Container |
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DAC08AQ |
± 0.10% |
–55°C to +125°C |
Cerdip-16 |
Q-16 |
25 |
DAC08AQ2/883C |
± 0.10% |
–55°C to +125°C |
Cerdip-16 |
Q-16 |
25 |
DAC08HP |
± 0.10% |
0°C to 70°C |
P-DIP-16 |
N-16 |
25 |
DAC08HQ |
± 0.10% |
0°C to 70°C |
Cerdip-16 |
Q-16 |
25 |
DAC08Q |
± 0.19% |
–55°C to +125°C |
Cerdip-16 |
Q-16 |
25 |
DAC08Q2/883C |
± 0.19% |
–55°C to +125°C |
Cerdip-16 |
Q-16 |
25 |
DAC08RC/883C |
± 0.19% |
–55°C to +125°C |
LCC-20 |
E-20 |
55 |
DAC08EP |
± 0.19% |
0°C to 70°C |
P-DIP-16 |
N-16 |
25 |
DAC08EQ |
± 0.19% |
0°C to 70°C |
Cerdip-16 |
Q-16 |
25 |
DAC08ES |
± 0.19% |
0°C to 70°C |
SO-16 |
R-16A (Narrow Body) |
47 |
DAC08ES-REEL |
± 0.19% |
0°C to 70°C |
SO-16 |
R-16A (Narrow Body) |
2500 |
DAC08CP |
± 0.39% |
–40°C to +85°C |
P-DIP-16 |
N-16 |
25 |
DAC08CQ |
± 0.39% |
0°C to 70°C |
Cerdip-16 |
Q-16 |
25 |
DAC08CS |
± 0.39% |
–40°C to +85°C |
SO-16 |
R-16A (Narrow Body) |
47 |
DAC08CS-REEL |
± 0.39% |
–40°C to +85°C |
SO-16 |
R-16A (Narrow Body) |
2500 |
DAC08NBC |
± 0.10% |
25°C |
DICE |
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DAC08GBC |
± 0.19% |
25°C |
DICE |
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DAC08GRBC |
± 0.39% |
25°C |
DICE |
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NOTES
1Devices processed in total compliance to MIL-STD-883. Consult factory for 883 data sheet.
2For availability and burn-in information on SO and PLCC packages, contact your local sales office.
The DAC08 contains 84 transistors. Die size 63 mil x 87 mil = 5,481 square mils.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the DAC08 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
REV. B |
–3– |
WARNING! |
ESD SENSITIVE DEVICE |
DAC08
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PIN CONNECTIONS |
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16-Lead Dual-In-Line Package |
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16-Lead SO |
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(Q and P Suffix) |
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(S Suffix) |
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VLC |
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COMPENSATION |
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V+ |
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B8 LSB |
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1 |
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16 |
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1 |
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16 |
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VREF (–) |
VREF (+) |
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B7 |
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IOUT |
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2 |
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15 |
2 |
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15 |
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V– |
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VREF (+) |
VREF (–) |
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B6 |
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3 |
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14 |
3 |
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14 |
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IOUT |
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V+ |
COMP |
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B5 |
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4 |
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13 |
4 |
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13 |
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MSB B1 |
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B8 LSB |
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VLC |
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B4 |
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12 |
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5 |
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12 |
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B2 |
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B7 |
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B3 |
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6 |
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11 |
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IOUT |
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6 |
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11 |
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B3 |
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B6 |
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V– |
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B2 |
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7 |
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10 |
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7 |
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10 |
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B4 |
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B5 |
IOUT |
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B1 MSB |
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8 |
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9 |
8 |
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9 |
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DAC08RC/883 20-Lead LCC
(RC Suffix)
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I |
V |
NC |
COMP |
(–) |
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V |
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OUT |
LC |
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REF |
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3 |
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2 |
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1 |
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20 |
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19 |
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V– |
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VREF (+) |
4 |
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18 |
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IOUT |
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V+ |
5 |
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17 |
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NC |
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NC |
6 |
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16 |
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MSB B1 |
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B8 LSB |
7 |
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15 |
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B2 |
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B7 |
8 |
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14 |
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9 |
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10 |
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11 |
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12 |
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13 |
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B3 |
B4 |
NC |
B5 |
B6 |
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NC = NO CONNECT
DICE CHARACTERISTICS
(125°C Tested Dice Available)
1.V LC
2.IOUT
3.V–
4.IOUT
5.BIT 1 (MSB)
6.BIT 2
7.BIT 3
8.BIT 4
9.BIT 5
10.BIT 6
11.BIT 7
12.BIT 8 (LSB)
13.V+
14.V REF (+)
15.V REF (–)
16.COMP
DIE SIZE 0.087 0.063 inch, 5,270 sq. mils (2.209 1.60 mm, 3.54 sq. mm)
–4– |
REV. B |