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DAC-HZ データシート(PDF) 2 Page - List of Unclassifed Manufacturers |
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DAC-HZ データシート(HTML) 2 Page - List of Unclassifed Manufacturers |
2 / 4 page DAC-HZ Series ® ® DAC-HZ12B DAC-HZ12D INPUTS (BINARY) (BCD) Resolution 12 binary bits 3 BCD digits Coding, Unipolar Output Comp. binary Comp. BCD Coding, Bipolar Output Comp. off. binary — Input Logic Level, Bit ON ("0") 0V to +0.8V at –1mA Input Logic Level, Bit OFF ("1") +2.4V to +5.5V at +40 µA Logic Loading 1 TTL load PERFORMANCE ➀ Voltage Output Nonlinearity ±1/2LSB max. ±1/4LSB max. Differential Nonlinearity ±3/4LSB max ±1/4LSB max. Gain Error, Before Trimming ±0.1% ➁ ∗ Zero Error, Before Trimming ±0.1% of FSR ➁ ∗ Gain Tempco, maximum ±20ppm/°C ∗ Zero Tempco, Unipolar, max. ±3ppm/°C of FSR ∗ Offset Tempco, Bipolar, max. ±10ppm/°C of FSR ∗ Diff. Nonlinearity Tempco, max. ±2ppm/°C of FSR ∗ Monotonicity Over oper. temp. range ∗ Settling Time, IOUT to ±1/2LSB ➂ 300ns ∗ Settling Time, VOUT to ±1/2LSB 3 µs ➃ ∗ Slew Rate ±10V/ µs ∗ Power Supply Rejection ±0.006%FSR/%Sup. ∗ OUTPUTS Output Current, Unipolar 0 to –2mA, ±20% 0 to –1.25mA, ±10% Output Current, Bipolar ±1mA, ±20% — Compliance Voltage, IOUT ±2.5V ∗ Output Impedance, IOUT, Unipolar 2k Ω∗ Output Impedance, IOUT, Bipolar 2k Ω — Output Voltage Ranges, Unipolar 0 to +5V 0 to +2.5V 0 to +10V 0 to +5V 0 to +10V Output Voltage Ranges, Bipolar ±2.5V — ±5V — ±10V — Output Current, VOUT ±5mA min. ∗ Output Impedance, VOUT 0.05 Ω∗ POWER REQUIREMENTS Power Supply Voltages +15V, ±0.5V at 16mA –15V, ±0.5V at 20mA ±12V operation ➄ Power Dissipation, maximum 500mW PHYSICAL ENVIRONMENTAL Operating Temp. Ranges, Case 0°C to +70° and –55°C to +125°C Storage Temp. Range –65°C to +150°C Thermal Impedance θjc 7.4°C/W θca 36.6°C/W Package Type 24-pin DDIP Weight 0.22 ounces (6.3 grams) ABSOLUTE MAXIMUM RATINGS Positive Supply, Pin 22 +18V Negative Supply, Pin 14 –18V Digital Input Voltage, Pins 1–12 +5.5V Output Current, Pin 15 ±20mA Lead Temperature (soldering, 10s) 300°C FUNCTIONAL SPECIFICATIONS (Typical at +25°C and ±15V supplies unless otherwise noted.) * Specifications same as first column. — No equivalent specifications Footnotes ➀ FSR is full-scale range and is 10V for 0 to +10V or –5V to +5V outputs, 20V for ±10V output, etc. ➁ Initial gain and offset errors are trimmable to zero. See Connection Diagrams. ➂ Current output mode. ➃ For 2.5k Ω or 5kΩfeedback. For 10kΩfeedback, the settling time is 4µs. ➄ For ±12V operation of binary models, contact factory. TECHNICAL NOTES 1. The DAC-HZ12 Series converters are designed and factory calibrated to give ±1/2LSB linearity (binary version) and ±1/4LSB linearity (BCD version) with respect to a straight line between end points. This means that if zero and full scale are exactly adjusted externally, the relative accuracy will be ±1/2LSB (±1/4LSB, BCD version) everywhere over the full output range without any additional adjustments. 2. These converters must be operated with local supply by- pass capacitors from +15V to ground and –15V to ground. Tantalum type capacitors of 1µF are recommended and should be mounted as close as possible to the converter. If the converters are used in a high-frequency noise environment, a 0.01µF ceramic capacitor should be used across each tantalum capacitor. 3. When operating in the current output mode, the equivalent internal current source of 2mA (1.25mA, BCD) must drive both the internal source resistances and the external load resistor. A 300ns output settling time is achieved for the voltage across a 100 Ω load resistor; for higher value resistors the settling time becomes longer due to the output capacitance of the converter. For fastest possible voltage output for a large transition, an external fast-settling amplifier such as DATEL’s AM-500 should be used in the inverting mode. Settling time of less than 1µs can be achieved. See application diagram. CALIBRATION PROCEDURE 1. Select the desired output range and connect the converter as shown in the Output Range Selection tables and the connection diagrams. 2. To calibrate, refer to the coding tables. Note that complementary coding is used. 3. Zero and Offset Adjustments For unipolar operation set all digital inputs to "1" (+2.0 to +5.5V) and adjust the ZERO ADJUST potentiometer for zero output voltage or current. For bipolar operation set all digital inputs to "1" and adjust the OFFSET ADJUST potentiometer for the negative full scale (for voltage out) or positive full scale (for current out) output value shown in the coding table. 4. Gain Adjustment Set all digital inputs to "0" (0V to +0.8V) and adjust the GAIN ADJUST potentiometer for the positive full scale (for voltage out) or negative full scale (for current out) output value shown in the coding table. |
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