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HA17008RP/RFP
8-Bit Multiplying Digital to Analog Converter
ADE-204-060 (Z) Rev. 0 Dec. 2000 Description
The HA17008R series are 8-bit monolithic D/A converters which have built in, a reference current amplifier, an R-2R ladder resistor, and 8 high speed current switches. By setting the reference voltage and resistance, the maximum output current can be freely varied in response to the application. The reference current is distributed to the current value for each bit by the R-2R ladder resistor, and the maximum output current is 255/256 of the reference current. For example, if the input reference current is 2.0 mA, then the maximum available output current is 1.992 mA. Applications for the HA17008R are wide ranging, and include CRT displays, stepping motor control, programmable power supplies, audio equipment, and attenuators.
Features
* * * * * * Linearity of 0.19% (1/2 LSB) guaranteed. The settling time is short, 85 ns (typ), enabling rapid conversions. Low power dissipation has been reduced: 135 mW typ. Compatible with TTL and CMOS logic. The standard supply voltage is VCC = +15.0 V, VEE = -15.0 V. A wide output voltage range can be provided. From -10 V to +18 V.
Ordering Information
Type No. HA17008RP HA17008RFP Package DP-16 FP-16DA
HA17008RP/RFP
Pin Arrangement
Threshold control IO VEE IO (MSB) A1 A2 A3 A4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Compensation VREF(-) VREF(+) VCC A 8 (LSB) A7 A6 A5
(Top View)
Block Diagram
MSB A1 5 LSB A8 12 4 Current switches 2 IO IO
A2 6
A3 7
A4 8
A5 9
A6 10
A7 11
THC 1
R-2R ladder resistor
Bias circuit
VREF (+) 14 VREF (-) 15 Ref. current amp. 3 VEE
13 16
VCC Compensation
2
HA17008RP/RFP
Functions
Reference differential amplifier and phase compensation The reference amplifier is a circuit which converts the reference voltage applied to pin 14 through the external resistor R14 from a voltage to a current. The converted current is supplied to each bit by a current mirror and the ladder resistor. Note that this should be used with the polarity of the current flowing in to pin 14. The reference voltage source provides all of the current flowing into pin 14. Also, even removing the resistor R15 will have a minimal influence on precision and temperature drift. To preserve an appropriate value of the phase margin, it is necessary to increase the value of the phase compensation capacitance as R 14 is increased. For example, if R14 is 1 k , 2.5 k , or 5 k , the minimum capacitances should be 15 pF, 37 pF, and 75 pF, respectively. The capacitor is connected to V EE. If high impedance is required in the reference current source, connect R14 to ground and connect R15 to the negative reference voltage. (Refer figure 2.) If a DC reference voltage is used, a bypass capacitor should be inserted in the reference voltage source to reduce compounded hum and noise. We cannot recommend the use of noisy 5 V logic power supplies. When a logic control 5 V power supply of good stability is used for the reference supply, connect a resistor to the reference supply and connect a 0.1 F capacitor between the reference supply and the resistor contact. When pin 14 is controlled by a high impedance such as a fixed current supply, phase compensation will not be possible with the above method. Therefore, provide adequate phase compensation in the frequency band of the fixed current supply.
VCC
13
R14 = R15
14 15 2
A1 5 A2 6 A3 7 A4 8 A5 9 A 6 10 A 7 11 A 8 12
R14
(+) VREF
HA17008R
4
R15
IO
16 3
RL C
VEE
Figure 1 Positive Reference Potential Application Example
3
HA17008RP/RFP
VCC
13
R14 = R15
14 15 2
A1 A2 A3 A4 A5 A6 A7 A8
5 6 7 8 9 10 11 12
R14 R15
(-) VREF
HA17008R
4
IO
16 3
RL C
VEE
Figure 2 Negative Reference Potential Application Example
MSB A1 A2 A3 A 4 12 bit A5 D/A A6 A7 A8 A 9 A10 A11 A12 LSB
5.0 k 50 k HA17741
- +
VREF 2.0 V 100 R14 950
0.1 F
VCC 14 13
Error (1 V = 1%)
8 bit counter
5 6 7 8 HA17008R 4 9 10 11 12 15 16 3 2 1
1 k
C VEE
Figure 3 Non Linearity Measurement Circuit
4
HA17008RP/RFP
0.1 F 0.1 F VCC 2.7 V 0.1 F Settling time test point 15 k 5V
1 k
5 6 7 8 9 10 11 12 13 14 15 1 2 4 16
50F 1 k 1 F
5 k 10 V 5 k 0.7 V 0.1 F
HA17008R
2 k 100 k
0.1 F 3 VEE
0.01 F
-15 V
Figure 4 Settling Time Test Circuit
Operation Example
* Current to voltage converter using an op-amp VCC
A1 A2 A3 A4 A5 A6 A7 A8
5 6 7 8 9 10 11 12
13
14
R14 R15 R0 -
VREF VREF = +2 VDC R14 = R 15 = 1.0 k R 0 = 5.0 k
6
15
HA17008R
2 4 16 3 2 3
V0
15 pF VEE Logical output V 0 V0 =
A1 A2 A3 A A A A A VREF (R 0 ) + + + 4+ 5+ 6+ 7+ 8 R14 2 4 8 16 32 64 128 256
When VREF, R14, and R0 are determined, the output voltage becomes 9.961 V in case of all-high input bits. V0 = 2V (5 k) 1 k 1 1 1 1 1 1 1 1 + + + + + + + 2 4 8 16 32 64 128 256
+ HA17741
5
HA17008RP/RFP
Absolute Maximum Ratings (Ta = 25C)
Item Power supply voltage Symbol VCC VEE Digital input voltage Reference current Reference amplifier input voltage range Power dissipation Operating temperature Storage temperature Note: V5 to V 12 I 14 VREF PT Topr Tstg Rating +18 -18 VEE to V EE + 36 V 5 VCC to VEE 500*
1
Unit V V V mA V mW C C
-20 to +75 -55 to +125
1. This is the allowable value up to Ta = 65C for HA17008RP. Derate by 8.3mW/C above that temperature. In case of HA17008RFP, see notes on SOP Package usage in Reliability section.
6
HA17008RP/RFP
Electrical Characteristics (VCC = 15 V, VEE = -15 V, IREF = 2 mA, VTHC = 0 V, Ta = 25C)
Item Nonlinearity Settling time (1/2 LSB) Propagation delay time Full scale current temperature dependence Digital input level Digital input current (MSB) Symbol Min NL tS t PLH , t PHL TCIFS VIH VIL I IH I IL Reference input bias current I 15 Output current range Full scale output current Zero scale output current Output voltage range Reference current slew rate Power supply current I F5R I FS IZ VOC dl/dt I CC I EE I CC I EE I CC I EE Power supply voltage Differential full scale output current difference Digital input voltage range Threshold voltage range Power supply voltage dependence VCC VEE I FSS VIS VTHR PSS I FS+ PSS I FS- -- -- -- -- 2 -- -- -10 -3 0 0 1.94 -- -10 4 -- -5.8 -- -7.8 -- -7.8 4.5 -18 -8 -10 -10 -100 -100 Typ -- 85 35 10 -- -- 0.002 -2 -1 2 2 1.99 0 -- 8 1.8 -3.7 1.9 -5.8 2.1 -5.9 15 -15 1 -- 0 -- -- Max 0.19 150 60 50 -- 0.8 10 -- -- 2.1 4.2 2.04 2 +18 -- 3.8 -- 3.8 -- 3.8 -- 18 -4.5 +8 +18 13.5 100 100 Unit %FS ns ns ppm/C V V A A A mA mA mA A V mA/s mA mA mA mA mA mA V V A V V I FS4 - I FS2 VTHR = -10 to +13.5 V VTHR V THC +1.3 V VEE = -5 V VEE = -8 to -18 V Vref = 10 V, R14 , R15 = 5 k All Bits Low IFS 1/2 LSB RREF 200, CC = 0pf VCC = 5 V, IREF = 1 mA, VEE = -5 V VCC = 5 V, IREF = 2 mA, VEE = -15 V VCC = 15 V, IREF = 2 mA, VEE = -15 V I REF = 1 mA VIH = 5 V VIL = 0.8 V All bits OFF to ON Test Conditions
ppmFS/%V VCC = -4.5 to -18 V, I REF = 1 mA ppmFS/%V VEE = -4.5 to -18V, I REF = 1 mA
7
HA17008RP/RFP
Standard Characteristics Curves
Output Current vs. Output Voltage Characteristics 2.5 Output current IOUT (mA) 2.0 1.5 1.0 0.5 0 -15 VEE = -15 V VEE = -5 V Iref = 2 mA Output Current vs. Digital Input Voltage Characteristics 2 Ta = 75C 1 VCC = 5 V VEE = -15 V Iref = 2.000 mA Ta = 25C Ta = -20C 0 0 3 1 2 Digital input voltage VIN (V) 4
Iref = 1 mA
Output current IOUT (mA) Power supply current ICC, IEE (mA)
-10 -5 0 5 10 Output voltage VOUT (V)
15 8 6 4 2 0
Power Supply Current vs. Power Supply Voltage Characteristics (1) IEE Iref = 2 mA
Output Current vs. Reference Input Current Characteristics 4 Output current IOUT (mA)
ICC
1 3
3 6 2 4 5 Power supply voltage VCC (V)
7
2 Power supply current ICC, IEE (mA) Max. value at VEE = -5 V 8 6 4 2 0
Power Supply Current vs. Power Supply Voltage Characteristics (2) IEE Iref = 2 mA
1
0 0 1 2 3 4 Reference input current Iref (mA)
ICC
0
-5 -10 -15 Power supply voltage VEE (V)
-20
8
HA17008RP/RFP
Standard Characteristics Curves (cont)
Power Supply Current vs. Ambient Temperature Characteristics Power supply current ICC, IEE (mA) 8 Iref = 2 mA 6 VEE = -15 V Digital input current IIN (mA) 0.4 Digital Input Current vs. Digital Input Voltage Characteristics VCC = 5 V VEE = -15 V Iref = 2 mA
0.3
4 VCC = 15 V
0.2
2
0.1
0 -40 -20
0 0 20 40 60 80 90 0 1 2 Digital input voltage VIN (V) 3
Ambient temperature Ta (C)
9
HA17008RP/RFP
Package Dimensions
Unit: mm
19.20 20.00 Max 16 9
7.40 Max 6.30
1 1.3
1.11 Max
8
0.51 Min
2.54 Min 5.06 Max
7.62
2.54 0.25
0.48 0.10
0.25 - 0.05 0 - 15
Hitachi Code JEDEC EIAJ Mass (reference value)
+ 0.13
DP-16 Conforms Conforms 1.07 g
Unit: mm
10.06 10.5 Max 16 9
5.5
1
*0.22 0.05 0.20 0.04
8 0.80 Max
2.20 Max
0.20 7.80 + 0.30 -
1.15 0 - 8 0.70 0.20
1.27 *0.42 0.08 0.40 0.06
0.12 M
Hitachi Code JEDEC EIAJ Mass (reference value) FP-16DA -- Conforms 0.24 g
*Dimension including the plating thickness Base material dimension
10
0.10 0.10
0.15
HA17008RP/RFP
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
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For further information write to:
Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic Components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 585160
Copyright (c) Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.
Colophon 2.0
11

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