HA17408P Datasheet | Hitachi Semiconductor

Description The HA17408P is an 8-bit monolithic D/A converter that incorporates a reference current amplifier, an R-2R resistor ladder, and eight high-speed current switches. Circuit designers can set the maximum output current to match the needs of their applications by setting the reference voltage and selecting a resistor value. The reference current is distributed to the current value for each bit by the R-2R resistor ladder, and thus the maximum output current is 255/256 times the reference current. For example, the largest output current that can be acquired for a reference input current of 2.0 m A is 1.992 m A. The HA17408P can be used in a wide range of applications including CRT displays, stepping motor control, programmable power supplies, audio equipment, and attenuators. Features - - - - - - A linearity of ±0.19% (± 1/2 LSB) is guaranteed. Short centering time (250 ns typical) for rapid conversions Low power dissipation: 157 m W typical patible with TTL and CMOS logic Standard supply voltages of VCC = +5.0 V, VEE = - 5.0 V and = - 15.0 V Wide output voltage range: +0.5 to - 5.0 V Pin Arrangement Block Diagram Absolute Maximum Ratings (Ta = 25°C) Item Power-supply voltage Symbol VCC VEE Digital input voltage Output voltage Reference current Reference amplifier input voltage range Allowable power dissipation Operating temperature Storage temperature V5 to V12 VO I14 VREF PT Topr Tstg Rated Value 5.5 - 16.5 0 to +5.5 0.5 to - 5.2 5.0 VCC, VEE 625 - 20 to +75 - 55 to +125 Unit V V V V m A V m W °C °C Electrical Characteristics (VCC = 5.0 V, VEE = - 15 V, Iref = 2 m A, Ta = 25°C) Item Relative error Settling time (± 1/2 LSB) Transmission delay time Maximum output current drift Digital input level Symbol Min ER ts - - Typ - 250 30 ±20 - - 0 - 0.002 - 1.0 2.0 2.0 1.99 0 - - 4.0 Max ±0.19 - 100 - - 0.8 0.04 - - 2.1 4.2 2.1 4.0 +0.5 +0.5 - Unit %FS ns ns ppm/°C V V m A m A µA m A m A m A µA V V m A/µs VEE = - 5.0 V VEE = - 7.0 to - 15 V Vref = 2.000 V, R...