HI1171
8-Bit, 40 MSPS, High Speed D/A Converter
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DATASHEET
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FN3662
Rev.3.00
October 26, 2005
Features
Description
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The HI1171 is an 8-bit, 40MHz, high speed D/A converter.
The converter incorporates an 8-bit input data register with
blanking capability, and current outputs. The HI1171 features low glitch outputs. The architecture is a current cell
arrangement to provide low linearity errors.
The HI1171 is available in an Industrial temperature range
and is offered in a 24 lead (200 mil) SOIC plastic package.
For dual version, please refer to the HI1177 Data Sheet.
For triple version, please refer to the HI1178 Data Sheet.
Throughput Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 40MHz
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-Bit
Integral Linearity Error . . . . . . . . . . . . . . . . . . . 0.25 LSB
Low Glitch Noise
Single Supply Operation . . . . . . . . . . . . . . . . . . . . . +5V
Low Power Consumption (Max) . . . . . . . . . . . . . 80mW
Evaluation Board Available (HI1171-EV)
Direct Replacement for the Sony CXD1171
Applications
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Wireless Telecommunications
Signal Reconstruction
Direct Digital Synthesis
Imaging
Presentation and Broadcast Video
Graphics Displays
Signal Generators
Pinout
Ordering Information
PART
NUMBER
TEMP. RANGE
(oC)
HI1171JCB
-40 to 85
HI1171-EV
25
PACKAGE
24 Ld SOIC
PKG. NO.
M24.2-S
Evaluation Board
Typical Application Circuit
HI1171
(SOIC)
TOP VIEW
+5V
+5V
HI1171
0.1F
1
24 DVDD
D1
2
23 DVDD
D7
D7 (MSB)(8)
D2
3
22 AVDD
D6
D6 (7)
D3
4
21 IOUT2
D5
D5 (6)
D4
5
20 IOUT1
D4
D4 (5)
19 AVDD
D3
D3 (4)
D2
D2 (3)
D1
D1 (2)
D0
D0 (LSB) (1)
D5
6
D6
7
18 AVDD
D7
8
17 VG
BLNK
9
16 VREF
DVSS 10
15 IREF
VB
11
14 AVSS
CLK
12
13 DVSS
FN3662 Rev.3.00
October 26, 2005
0.1F
DVDD (23, 24)
(18, 19, 22) AVDD
(LSB) D0
CLK (12)
0.1F
VB (11)
BLNK (9)
DVSS (10, 13)
(17) VG
(16) VREF
0.1F
1k
(20) IOUT1
D/A
OUT
200
(15) IREF
3.3k
(21) IOUT2
(14) AVSS
Page 1 of 7
HI1171
Functional Block Diagram
(LSB) D0
D1
D2
D3
DECODER
8-BIT
LATCH
D4
D5
D6
6 MSBs
CURRENT
CELLS
IOUT2
2 LSBs
CURRENT
CELLS
IOUT1
VG
DECODER
-
(MSB) D7
CURRENT CELLS
(FOR FULL SCALE)
+
VREF
IREF
BLNK
BIAS VOLTAGE
GENERATOR
VB
CLK
FN3662 Rev.3.00
October 26, 2005
CLOCK
GENERATOR
Page 2 of 7
HI1171
Absolute Maximum Ratings
Thermal Information
Digital Supply Voltage DVDD to DVSS . . . . . . . . . . . . . . . . . . +7.0V
Analog Supply Voltage AVDD to AVSS . . . . . . . . . . . . . . . . . . +7.0V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VDD to VSS V
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0mA to 15mA
Thermal Resistance (Typical, Note 1)
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
JA (oC/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
98
Maximum Junction Temperature, Plastic Package . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
AVDD = +4.75V to +5.25V, DVDD = +4.75 to +5.25V, VREF = +2.0V, fS = 40MHz,
CLK Pulse Width = 12.5ns, TA = 25oC (Note 4)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
-
8
-
Bits
-0.5
-
1.3
LSB
SYSTEM PERFORMANCE
Resolution, n
Integral Linearity Error, INL
fS = 40MHz (End Point)
Differential Linearity Error, DNL
fS = 40MHz
-
-
0.25
LSB
Offset Error, VOS
(Note 2)
-
-
1
mV
Full Scale Error, FSE (Adjustable to Zero)
(Note 2)
-
-
13
LSB
Full Scale Output Current, IFS
-
10
15
mA
Full Scale Output Voltage, VFS
1.9
2.0
2.1
V
Output Voltage Range, VFSR
0.5
2.0
2.1
V
DYNAMIC CHARACTERISTICS
Throughput Rate
See Figure 7
40.0
-
-
MHz
Glitch Energy, GE
ROUT = 75
-
30
-
pV-s
Differential Gain, AV (Note 3)
-
1.2
-
%
Differential Phase, (Note 3)
-
0.5
-
Degree
0.5
-
2.0
V
(Note 3)
1.0
-
-
M
Input Logic High Voltage, VIH
(Note 3)
3.0
-
-
V
Input Logic Low Voltage, VIL
(Note 3)
-
-
1.5
V
Input Logic Current, IIL, IIH
(Note 3)
-
-
5.0
A
Digital Input Capacitance, CIN
(Note 3)
-
5.0
-
pF
Data Setup Time, tSU
See Figure 1
5
-
-
ns
Data Hold Time, tHLD
See Figure 1
10
-
-
ns
REFERENCE INPUT
Voltage Reference Input Range
Reference Input Resistance
DIGITAL INPUTS
TIMING CHARACTERISTICS
FN3662 Rev.3.00
October 26, 2005
Page 3 of 7
HI1171
Electrical Specifications
AVDD = +4.75V to +5.25V, DVDD = +4.75 to +5.25V, VREF = +2.0V, fS = 40MHz,
CLK Pulse Width = 12.5ns, TA = 25oC (Note 4) (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Propagation Delay Time, tPD
See Figure 9
-
10
-
ns
Settling Time, tSET (to 1/2 LSB)
See Figure 1
-
10
15
ns
CLK Pulse Width, tPW1, tPW2
See Figure 1
12.5
-
-
ns
POWER SUPPLY CHARACTERISITICS
IAVDD
14.3MHz, at Color Bar Data Input
-
10.9
11.5
mA
IDVDD
14.3MHz, at Color Bar Data Input
-
4.2
4.8
mA
Power Dissipation
200 load at 2VP-P Output
-
-
80
mW
NOTES:
2. Excludes error due to external reference drift.
3. Parameter guaranteed by design or characterization and not production tested.
4. Electrical specifications guaranteed only under the stated operating conditions.
Timing Diagram
tPW1
tPW2
CLK
tSU
tSU
tSU
tHLD
tHLD
tHLD
DATA
tPD
100%
D/AOUT
50%
tPD
tPD
0%
FIGURE 1.
FN3662 Rev.3.00
October 26, 2005
Page 4 of 7
HI1171
200
2
GLITCH ENERGY (pV/s)
OUTPUT FULL SCALE VOLTAGE (V)
Typical Performance Curves
1
100
VDD = 5.0V, R = 200
16R = 3.3k, TA = 25oC
1
REFERENCE VOLTAGE (V)
2
100
OUTPUT RESISTANCE ()
OUTPUT FULL SCALE VOLTAGE (V)
FIGURE 2. OUTPUT FULL SCALE VOLTAGE vs REFERENCE
VOLTAGE
200
FIGURE 3. OUTPUT RESISTANCE vs GLITCH ENERGY
2.0
1.9
VDD = 5.0V, VREF = 2.0V
R = 20016R = 3.3k
TA = 25oC
0
-25
0
25
50
75
AMBIENT TEMPERATURE (oC)
FIGURE 4. OUTPUT FULL SCALE VOLTAGE vs AMBIENT TEMPERATURE
Pin Descriptions
24 PIN
SOIC
PIN
NAME
1-8
D0(LSB) thru
D7(MSB)
9
BLNK
10, 13
DVSS
11
VB
PIN DESCRIPTION
Digital Data Bit 0, the Least Significant Bit thru Digital Data Bit 7, the Most Significant Bit.
Blanking Line, used to clear the internal data register to the zero condition when High, normal operation when Low.
Digital Ground.
Voltage Bias, connect a 0.1F capacitor to DVSS .
12
CLK
Data Clock Pin 100kHz to 40MHz.
14
AVSS
Analog Ground.
15
IREF
Current Reference, used to set the current range. Connect a resistor to AVSS that is 16 times greater than the resistor on IOUT1 . (See Typical Applications Circuit).
16
VREF
17
VG
Input Reference Voltage used to set the output full scale range.
Voltage Ground, connect a 0.1F capacitor to AVDD .
18, 19, 22
AVDD
Analog Supply 4.75V to 7V.
20
IOUT1
Current Output Pin.
FN3662 Rev.3.00
October 26, 2005
Page 5 of 7
HI1171
Pin Descriptions
24 PIN
SOIC
(Continued)
PIN
NAME
PIN DESCRIPTION
21
IOUT2
Current Output pin used for a virtual ground connection. Usually connected to AVSS.
23, 24
DVDD
Digital Supply 4.75V to 7V.
Detailed Description
The HI1171 is an 8-bit, current out D/A converter. The DAC
can convert at 40MHz and run on a single +5V supply. The
architecture is an encoded, switched current cell arrangement.
As the values of both ROUT and RREF increase, power
consumption is decreased, but glitch energy and output
settling time is increased.
Voltage Output Mode
Clock Phase Relationship
The output current of the HI1171 can be converted into a voltage
by connecting an external resistor to IOUT1 . To calculate the
output resistor use the following equation:
The internal latch is closed when the clock line is high. The
latch can be cleared by the BLNK line. When BLNK is set
(HIGH) the contents of the internal data latch will be cleared.
When BLNK is low data is updated by the CLK.
ROUT = VFS /IFS ,
where VFS can range from +0.5V to +2.0V and IFS can range
from 0mA to 15mA.
In setting the output current the IREF pin should have a resistor
connected to it that is 16 times greater than the output resistor:
RREF = 16 x ROUT
Noise Reduction
To reduce power supply noise separate analog and digital
power supplies should be used with 0.1F ceramic capacitors
placed as close to the body of the HI1171 as possible. The
analog (AVSS) and digital (DVSS) ground returns should be
connected together back at the power supply to ensure proper
operation from power up.
Test Circuits
(LSB) D0
1
8-BIT
COUNTER
WITH LATCH
2
20
VG
D7
BLK
8
9
VB
CLK
AVDD
200
0.1F
16
11
15
12
OSCILLOSCOPE
17
0.1F
CLK
40MHz
SQUARE WAVE
IO
VREF
1k
2V
IREF
AVSS
3.3k
FIGURE 5. MAXIMUM CONVERSION SPEED TEST CIRCUIT
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For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
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For information regarding Intersil Corporation and its products, see www.intersil.com
FN3662 Rev.3.00
October 26, 2005
Page 6 of 7
HI1171
Test Circuits
(Continued)
(LSB) D0
1
20
2
CONTROLLER
DVM
AVDD
VG
D7
0.1F
9
16
0.1F
VREF
1k
2V
11
VB
200
17
8
BLK
CLK
40MHz
SQUARE WAVE
IO
IREF
15
AVSS
12
CLK
3.3k
FIGURE 6. DC CHARACTERISTICS TEST CIRCUIT
(LSB) D0
1
20
2
IO
OSCILLOSCOPE
AVDD
VG
D7
FREQUENCY
DEMULTIPLIER
8
BLK
200
0.1F
9
16
0.1F
11
VB
CLK
10MHz
SQUARE WAVE
17
15
VREF
1k
2V
IREF
AVSS
12
CLK
3.3k
FIGURE 7. PROPAGATION DELAY TIME TEST CIRCUIT
(LSB) D0
1
8-BIT
COUNTER
WITH LATCH
2
BLK
CLK
1MHz
SQUARE WAVE
8
9
CLK
AVDD
17
OSCILLOSCOPE
75
0.1F
16
0.1F
VB
DELAY
CONTROLLER
IO
VG
D7
DELAY
CONTROLLER
20
11
15
VREF
2V
IREF
1k
AVSS
12
1.2k
FIGURE 8. SET UP HOLD TIME AND GLITCH ENERGY TEST CIRCUIT
FN3662 Rev.3.00
October 26, 2005
Page 7 of 7