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AD7628KN Folha de dados(PDF) 3 Page - Analog Devices |
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AD7628KN Folha de dados(HTML) 3 Page - Analog Devices |
3 / 8 page AD7628 –3– REV. A ABSOLUTE MAXIMUM RATINGS (TA = +25°C unless otherwise noted) VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V, +17 V VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V, +17 V AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . VDD + 0.3 V DGND to AGND . . . . . . . . . . . . . . . . . . . . . . . . VDD + 0.3 V Digital Input Voltage to DGND . . . . . . –0.3 V, VDD + 0.3 V VPIN2, VPIN20 to AGND . . . . . . . . . . . . . . –0.3 V, VDD + 0.3 V VREF A, VREF B to AGND . . . . . . . . . . . . . . . . . . . . . . . ±25 V VRFB A, VRFB B to AGND . . . . . . . . . . . . . . . . . . . . . . . ± 25 V Power Dissipation (Any Package) to +75 °C . . . . . . . . 450 mW Derates above +75 °C by . . . . . . . . . . . . . . . . . . . 6 mW/°C Operating Temperature Range Commercial (K) Grades . . . . . . . . . . . . . . . –40 °C to +85°C Industrial (B) Grades . . . . . . . . . . . . . . . . . –40 °C to +85°C Extended (T) Grades . . . . . . . . . . . . . . . . –55 °C to +125°C Storage Temperature . . . . . . . . . . . . . . . . . –65 °C to +150°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300 °C ORDERING GUIDE Temperature Relative Gain Package Model 1 Range Accuracy Error Option 2 AD7628KN –40 °C to +85°C ±1/2 LSB ±2 LSB N-20 AD7628KP –40 °C to +85°C ±1/2 LSB ±2 LSB P-20A AD7628KR –40 °C to +85°C ±1/2 LSB ±2 LSB R-20 AD7628BQ –40 °C to +85°C ±1/2 LSB ±2 LSB Q-20 AD7628TQ –55 °C to +125°C ±1/2 LSB ±2 LSB Q-20 AD7628TE –55 °C to +125°C ±1/2 LSB ±2 LSB E-20A NOTES 1To order MIL-STD-883, Class B process parts, add /883B to part number. Contact your local sales office for military data sheet. 2E = Leadless Ceramic Chip Carrier; N = Plastic DIP; P = Plastic Leaded Chip Carrier; Q = Cerdip; R = SOIC. WARNING! ESD SENSITIVE DEVICE CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7628 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. TERMINOLOGY Relative Accuracy: Relative accuracy or endpoint nonlinearity is a measure of the maximum deviation from a straight line passing through the endpoints of the DAC transfer function. It is measured after ad- justing for zero and full-scale, and is normally expressed in LSBs or as a percentage of full-scale reading. Differential Nonlinearity: Differential nonlinearity is the difference between the measured change and the ideal 1 LSB change between any two adjacent codes. A specified differential nonlinearity of ±1 LSB max over the operating temperature range ensures monotonicity. Gain Error: Gain error is a measure of the output error between an ideal DAC and the actual device output. It is measured with all 1s in the DAC latches after offset error has been adjusted out. Gain error of both DACs is adjustable to zero with external resistance. Output Capacitance: Capacitance from OUT A or OUT B to AGND. Digital-to-Analog Glitch Impulse: The amount of charge injected from the digital inputs to the analog output when the inputs change state. This is normally specified as the area of the glitch in either pA-secs or nV-secs, depending upon whether the glitch is measured as a current or voltage signal. Glitch impulse is measured with VREF A, VREF B = AGND. Channel-to-Channel Isolation: The proportion of input signal from one DAC’s reference input that appears at the output of the other DAC, expressed as a ratio in dB. Digital Crosstalk: The glitch energy transferred to the output of one converter due to a change in digital input code to the other converter. Speci- fied in nV secs. PIN CONFIGURATIONS DIP, SOIC AGND OUT A OUT B RFB B DGND DAC A/DAC B (MSB) DB7 WR CS DB0 (LSB) RFB A V REF A V REF B V DD DB6 DB1 DB5 DB2 DB4 DB3 1 2 20 19 5 6 7 16 15 14 3 4 18 17 813 912 10 11 TOP VIEW (Not to Scale) AD7628 LCCC V REF A DGND DB6 DAC A /DAC B DB7 (MSB) V REF B V DD DB0 (LSB) WR CS 19 31 220 4 5 8 6 7 12 13 911 10 18 17 14 16 15 TOP VIEW (Not to Scale) AD7628 PLCC V REF A DGND DB6 DAC A/DAC B DB7 (MSB) V REF B V DD DB0 (LSB) WR CS 19 3 1 2 20 4 5 8 6 7 12 13 9 11 10 18 17 14 16 15 TOP VIEW (Not to Scale) AD7628 |
Nº de peça semelhante - AD7628KN |
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Descrição semelhante - AD7628KN |
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