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. Package HA17008RP DP-16 HA17008RFP 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 THC 1 MSB A1 A2 A3 A4 A5 A6 A7 LSB A8 5 6 7 8 9 10 11 12 R-2R ladder resistor IO 2 IO Bias circuit VREF (+) 14 VREF (–) 15 Ref. current amp. 3 2 4 Current switches VEE 13 VCC 16 Compensation 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 µF 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 R14 = R15 13 A1 A2 A3 A4 A5 A6 A7 A8 5 6 7 8 9 10 11 12 14 15 2 HA17008R R14 (+) VREF R15 4 IO 16 3 RL C VEE Figure 1 Positive Reference Potential Application Example 3 HA17008RP/RFP VCC R14 = R15 13 A1 5 A2 6 A3 7 A4 8 A5 9 A 6 10 A 7 11 A 8 12 R14 R15 14 15 2 (–) VREF HA17008R 4 IO 16 RL C 3 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 VREF 2.0 V 100 Ω R14 950 Ω 8 bit counter 0.1 µF 5.0 kΩ 50 kΩ HA17741 – + VCC 14 Error (1 V = 1%) 13 5 6 7 8 HA17008R 4 9 10 11 12 15 16 3 2 1 1 kΩ C VEE Figure 3 Non Linearity Measurement Circuit 4 HA17008RP/RFP 0.1 µF 0.1 µF VCC 1 kΩ 5 6 7 8 9 10 11 12 5V 2.7 V 13 14 15 1 2 4 HA17008R 0.1 µF 50µF 5 kΩ 10 V 5 kΩ 0.7 V 0.1 µF 2 kΩ 100 kΩ 16 –15 V 0.01 µF 0.1 µF 3 Settling time test point 15 kΩ 1 µF 1 kΩ VEE 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 13 5 6 7 8 9 10 11 12 14 R14 15 R15 VREF HA17008R R0 2 4 16 3 15 pF VEE VREF = +2 VDC R14 = R 15 = 1.0 kΩ R 0 = 5.0 kΩ 2– 3+ 6 V0 HA17741 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 kΩ) 1 kΩ 1 1 1 1 1 1 1 1 + + + + + + + 2 4 8 16 32 64 128 256 5 HA17008RP/RFP Absolute Maximum Ratings (Ta = 25°C) Item Symbol Rating Unit Power supply voltage VCC +18 V VEE –18 V Digital input voltage V5 to V 12 VEE to V EE + 36 V V Reference current I 14 5 mA Reference amplifier input voltage range VREF VCC to VEE 1 V Power dissipation PT 500* Operating temperature Topr –20 to +75 °C Storage temperature Tstg –55 to +125 °C Note: 6 mW 1. This is the allowable value up to Ta = 65°C for HA17008RP. Derate by 8.3mW/°C above that temperature. In case of HA17008RFP, see notes on SOP Package usage in Reliability section. HA17008RP/RFP Electrical Characteristics (VCC = 15 V, VEE = –15 V, IREF = 2 mA, VTHC = 0 V, Ta = 25°C) Item Symbol Min Typ Max Unit Nonlinearity NL — — ±0.19 %FS Settling time (±1/2 LSB) tS — 85 150 ns Propagation delay time t PLH , t PHL — 35 60 ns Full scale current temperature dependence TCIFS — ±10 ±50 ppm/°C Digital input level Test Conditions All bits OFF to ON VIH 2 — — V VIL — — 0.8 V I IH — 0.002 10 µA VIH = 5 V I IL –10 –2 — µA VIL = 0.8 V Reference input bias current I 15 –3 –1 — µA Output current range 0 2 2.1 mA VEE = –5 V 0 2 4.2 mA VEE = –8 to –18 V I FS 1.94 1.99 2.04 mA Vref = 10 V, R14 , R15 = 5 kΩ Zero scale output current IZ — 0 2 µA All Bits Low Output voltage range VOC –10 — +18 V ∆IFS ≤ 1/2 LSB Reference current slew rate dl/dt 4 8 — mA/µs RREF ≤ 200Ω, CC = 0pf Power supply current I CC — 1.8 3.8 mA VCC = 5 V, IREF = 1 mA, I EE –5.8 –3.7 — mA VEE = –5 V I CC — 1.9 3.8 mA VCC = 5 V, IREF = 2 mA, I EE –7.8 –5.8 — mA VEE = –15 V I CC — 2.1 3.8 mA VCC = 15 V, IREF = 2 mA, I EE –7.8 –5.9 — mA VEE = –15 V VCC 4.5 15 18 V I REF = 1 mA VEE –18 –15 –4.5 V Differential full scale output current difference I FSS –8 ±1 +8 µA I FS4 – I FS2 Digital input voltage range VIS –10 — +18 V VTHR = –10 to +13.5 V Threshold voltage range VTHR –10 0 13.5 V VTHR ≅ V THC +1.3 V Power supply voltage dependence PSS I FS+ –100 — 100 ppmFS/%V VCC = –4.5 to –18 V, I REF = 1 mA PSS I FS– –100 — 100 ppmFS/%V VEE = –4.5 to –18V, I REF = 1 mA Digital input current (MSB) Full scale output current Power supply voltage I F5R 7 HA17008RP/RFP Output Current vs. Output Voltage Characteristics VEE = –15 V 2.0 VEE = –5 V Iref = 2 mA 1.5 1.0 Output Current vs. Digital Input Voltage Characteristics 2 1 Ta = 25°C Ta = –20°C 0 0 3 1 2 Digital input voltage VIN (V) 4 0.5 0 –15 –10 –5 0 5 10 Output voltage VOUT (V) Power Supply Current vs. Power Supply Voltage Characteristics (1) 15 Output Current vs. Reference Input Current Characteristics 4 8 IEE 6 ICC 2 0 2 1 0 0 1 2 3 4 Reference input current Iref (mA) 3 6 2 4 5 Power supply voltage VCC (V) 7 Power Supply Current vs. Power Supply Voltage Characteristics (2) Power supply current ICC, IEE (mA) Output current IOUT (mA) 3 Max. value at VEE = –5 V Iref = 2 mA 4 1 8 IEE 6 Iref = 2 mA 4 ICC 2 0 0 8 VCC = 5 V VEE = –15 V Iref = 2.000 mA Ta = 75°C Iref = 1 mA Power supply current ICC, IEE (mA) Output current IOUT (mA) 2.5 Output current IOUT (mA) Standard Characteristics Curves –5 –10 –15 Power supply voltage VEE (V) –20 HA17008RP/RFP Standard Characteristics Curves (cont) Digital Input Current vs. Digital Input Voltage Characteristics 0.4 8 Iref = 2 mA 6 Digital input current IIN (mA) Power supply current ICC, IEE (mA) Power Supply Current vs. Ambient Temperature Characteristics VEE = –15 V 4 VCC = 15 V 2 0 –40 –20 VCC = 5 V VEE = –15 V Iref = 2 mA 0.3 0.2 0.1 0 0 20 40 60 80 90 Ambient temperature Ta (°C) 0 1 2 Digital input voltage VIN (V) 3 9 HA17008RP/RFP Package Dimensions Unit: mm 19.20 20.00 Max 6.30 9 1 7.40 Max 16 8 1.3 0.48 ± 0.10 7.62 2.54 Min 5.06 Max 2.54 ± 0.25 0.51 Min 1.11 Max + 0.13 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Mass (reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension 10 Hitachi Code JEDEC EIAJ Mass (reference value) FP-16DA — Conforms 0.24 g 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. 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