DAC1054CMJ-QML [TI]
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| 型号： | DAC1054CMJ-QML |
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MILITARY DATA SHEET
Original Creation Date: 08/24/95
Last Update Date: 09/29/95
MNDAC1054CM-X REV 0B0
Last Major Revision Date: 08/24/95
QUAD 10-BIT VOLTAGE-OUTPUT SERIAL D/A CONVERTER WITH
READBACK
General Description
The DAC1054 is a complete quad 10-bit voltage-output digital-to-analog converter that can
operate on a single 5V supply. It includes on-chip output amplifiers, internal voltage
reference, and serial microprocessor interface. By combining in one package the reference,
amplifiers, and conversion circuitry for four D/A converters, the DAC1054 minimizes wiring
and parts count and is hence ideally suited for applications where cost and board space
are of prime concern.
The DAC1054 also has a data readback function, which can be used by the microprocessor to
verify that the desired input word has been properly latched into the DAC1054's data
registers. The data readback function simplifies the design and reduces the cost of
systems which need to verify data integrity.
The logic comprises a MICROWIRE(TM)-compatible serial interface and control circuitry. The
interface allows the user to write to any one of the input registers or to all four at
once. The latching registers are double-buffered, consisting of 4 separate input registers
and 4 DAC registers. Each DAC register may be written to individually. Double buffering
allows all 4 DAC outputs to be updated simultaneously or individually.
The four reference inputs allow the user to configure the system to have a separate output
voltage range for each DAC. The output voltage of each DAC can range between 0.3V and 2.8V
and is a function of Vbias, Vref, and the input word.
Industry Part Number
NS Part Numbers
DAC1054CMJ
DAC1054CMJ-QML
Prime Die
DAC1054A
Controlling Document
5962-9466201QJA
Processing
Subgrp Description
Temp (oC)
MIL-STD-883, Method 5004
1
Static tests at
+25
2
Static tests at
+125
-55
3
Static tests at
4
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
+25
Quality Conformance Inspection
5
+125
-55
6
MIL-STD-883, Method 5005
7
+25
8A
8B
9
+125
-55
+25
10
11
+125
-55
1
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Features
- Single +5V supply operation
- MICROWIRE serial interface allows easy interface to many popular microcontrollers
including the COPS(TM) and HPC(TM) families of microcontrollers
- Data readback capability
- Output data can be formatted to read back MSB or LSB first
- Versatile logic allows selective or global update of the DACs
- Power fail flag
- Output amplifiers can drive 2K Ohm load
- Synchronous/asynchronous update of the DAC outputs
Applications
- Automatic test equipment
- Industrial process controls
- Automotive controls and diagnostics
- Instrumentation
2
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
(Absolute Maximum Ratings)
(Note 1, 2)
Supply Voltage (AVcc, DVcc)
7V
Supply Voltage Difference (AVcc-DVcc)
+5.5V
Voltage at Any Pin
(Note 3)
Gnd -0.3V to AVcc/DVcc +0.3V
Input Current at Any Pin
(Note 3)
5mA
Package Input Current
(Note 4)
30mA
950mW
Power Dissipation
(Note 5)
ESD Susceptibility
(Note 6)
Human Body Model
2000V
Soldering Information
(10 Sec.)
300 C
Storage Temperature
-65 C to +150 C
150 C
Maximum Junction Temperature
Thermal Resistance
ThetaJA
(Still Air)
41 C/W
22 C/W
(500LF/Min Air flow)
ThetaJC
3.0 C/W
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Operating Ratings indicate conditions for which the device is functional. These
ratings do not guarantee specific performance limits, however. For guaranteed
specifications and test conditions, see the Converter Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance
characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: All voltages are measured with respect to ground, unless otherwise specified.
Note 3: When the input voltage (Vin) at any pin exceeds the power supply rails (Vin<Gnd or
Vin>V+) the absolute value of current at that pin should be limited to 5mA or less.
Note 4: The sum of the currents at all pins that are driven beyond the power supply voltages
should not exceed 30mA.
Note 5: The maximum power dissipation must be derated at elevated temperatures and is
dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to
ambient thermal resistance), and TA (ambient temperature). The maximum allowable
power dissipation at any temperature is Pdmax = (Tjmax-TA)/ThetaJA or the number
given in the Absolute Maximum Ratings, whichever is lower.
Note 6: Human body model, 100pF discharged through a 1.5K Ohm resistor.
3
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Recommended Operating Conditions
(Note 1, 2)
Supply Voltage
4.5V to 5.5V
+1V
Supply Voltage Difference (AVcc-DVcc)
Temperature Range
Tmin <TA< Tmax
-55 C <TA< +125 C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Operating Ratings indicate conditions for which the device is functional. These
ratings do not guarantee specific performance limits, however. For guaranteed
specifications and test conditions, see the Converter Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance
characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: All voltages are measured with respect to ground, unless otherwise specified.
4
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Electrical Characteristics
DC PARAMETERS: STATIC CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vref = 2.65V, AVcc = DVcc = 5V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Rl = The load resistors on
the analog output pins Vout1, Vout2, Vout3, Vout4.
PIN-
NAME
SUB-
GROUPS
SYMBOL
PARAMETER
Resolution
CONDITIONS
NOTES
MIN
MAX UNIT
n
10
bits 1, 2,
3
Monotonicity
1
2
10
bits 1, 2,
3
Integral
Linearity Error
-1.0
-1.0
-30
1.0
1.0
30
LSB 1, 2,
3
Differential
Linearity Error
LSB 1, 2,
3
Fullscale Error
3
4
5
mV
mV
dB
1, 2,
3
Zero Error
-25
25
1, 2,
3
Power Supply
Sensitivity
-34
1, 2,
3
DC PARAMETERS: DIGITAL CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vref = 2.65V, AVcc = DVcc = 5V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Rl = The load resistors on
the analog output pins Vout1, Vout2, Vout3, Vout4.
Vin(1)
Vin(0)
Iil
Logical "1" Input AVcc = DVcc = 5.5V
Voltage
2.0
V
1, 2,
3
Logical "0" Input AVcc = DVcc = 4.5V
Voltage
.8
V
1, 2,
3
Digital Input
Leakage Current
5.0
uA
V
1, 2,
3
Vout(1)
Vout(0)
Vint
Logical "1"
Isource = 0.8mA
Isink = 3.2mA
2.4
1, 2,
3
Output Voltage
Logical "0"
Output Voltage
.4
V
1, 2,
3
Interrupt Pin
Output Voltage
10K Ohms Pullup
Outputs Unloaded
.4
V
1, 2,
3
Is
Supply Current
20.0
mA
1, 2,
3
DC PARAMETERS: REFERENCE INPUT CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vref = 2.65V, AVcc = DVcc = 5V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Rl = The load resistors on
the analog output pins Vout1, Vout2, Vout3, Vout4.
Rref
Input Resistance
4
10
KOhms 1, 2,
3
5
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Electrical Characteristics
DC PARAMETERS: BANDGAP REFERENCE CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vref = 2.65V, AVcc = DVcc = 5V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Cl = 220uF, Rl = The load
resistors on the analog output pins Vout1, Vout2, Vout3, Vout4.
PIN-
NAME
SUB-
GROUPS
SYMBOL
PARAMETER
CONDITIONS
NOTES
MIN
MAX UNIT
VrefOUT
Output Voltage
6
2.597 2.703 V
1, 2,
3
Line Regulation
Load Regulation
4.5V < Vcc < 5.5V, Il = 4mA
0 < IL < 4mA
5
mV
mV
1, 2,
3
Delta
10
1, 2,
3
Vref/
Delta Il
DC PARAMETERS: DYNAMIC CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: Vref = 2.65V, AVcc = DVcc = 5V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Rl = The load resistors on
the analog output pins Vout1, Vout2, Vout3, Vout4.
tS+
Positive Voltage Cl = 200pF
Output Settling
Time
7
3.2
uS
4, 5,
6
tS-
Negative Voltage Cl = 200pF
Output Settling
Time
7
3.7
uS
4, 5,
6
6
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Electrical Characteristics
AC PARAMETERS: AC ELECTRICAL CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: AVcc = DVcc = 5V, Vref = 2.65V, VBias = 1.4V, Rl = 2K Ohms, fCLK = 10MHz, Rl = The load resistors on
the analog output pins Vout1, Vout2, Vout3, Vout4.
PIN-
NAME
SUB-
SYMBOL
tDS
PARAMETER
CONDITIONS
NOTES
MIN
15
MAX UNIT
GROUPS
Data SETUP Time
nS
9, 10,
11
tDH
Data HOLD Time
0
nS
nS
nS
9, 10,
11
tCS
Control SETUP
Time
15
0
9, 10,
11
tCH
Control HOLD Time
9, 10,
11
fWMAX
fRMAX
tH
Clock Frequency
Write
10
5
MHz 9, 10,
11
Clock Frequency
Readback
MHz 9, 10,
11
Minimum Clock
High Time
20
20
nS
nS
nS
nS
nS
nS
9, 10,
11
tL
Minimum Clock Low
Time
9, 10,
11
tCZ1
tCZ0
t1H
Output Hi-Z to
Valid 1
fCLK = 5MHz
fCLK = 5MHz
70
9, 10,
11
Output Hi-Z to
Valid 0
70
9, 10,
11
CS to Output Hi-Z 10K Ohms with 60pF, fCLK = 5MHz
150
130
9, 10,
11
t0H
CS to Output Hi-Z 10K Ohms with 60pF, fCLK = 5MHz
9, 10,
11
Note 1: A monotonicity of 10 bits for the DAC1054 means that the output voltage changes in
the same direction (or remains constant) for each increase in the input code.
Note 2: Integral linearity error is the maximum deviation of the output from the line drawn
between zero and full-scale (excluding the effects of zero error and full-scale
error).
Note 3: Full-scale error is measured as the deviation from the ideal 2.800V full-scale output
when Vref=2.650V and Vbias=1.400V.
Note 4: Zero error is measured as the deviation from the ideal 0.302V output when
Vref=2.650V, Vbias=1.400V, and the digital input word is all zeros.
Note 5: Power Supply Sensitivity is the maximum change in the offset error or the full-scale
error when the power supply differs from its optimum 5V by up to 0.50V (10%), load
resistor Rl = 2K Ohms.
Note 6: Limit = +2%
Note 7: Positive or negative settling time is defined as the time taken for the output of the
DAC to settle to its final full-scale or zero output to within +0.5LSB. This time
shall be referenced to the 50% point of the positive edge of CS, which initiates the
update of the analog outputs.
7
MILITARY DATA SHEET
MNDAC1054CM-X REV 0B0
Graphics and Diagrams
GRAPHICS#
DESCRIPTION
6304HRA1
J24ARH
24 LEAD CERDIP (J) (B/I CKT)
(blank)
P000003A
24 LEAD CERDIP (J) (PIN OUT)
See attached graphics following this page.
8
Vbias2
Vout2
Vref2
Vref1
Vout1
Vbias1
DVcc
DGND
DVcc
DO
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
VrefOut
AGND
AVcc
Vref3
CLK
CS
DI
AU
INT
Vout3
Vbias3
Vbias4
Vref4
Vout4
DAC1054CMJ/883
CONNECTION DIAGRAM
24 - LEAD DIP
(TOP VIEW)
P000003A
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