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AD7244AQ bảng dữ liệu(PDF) 2 Page - Analog Devices |
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2 / 12 page REV. A –2– AD7242/AD7244–SPECIFICATIONS (VDD = +5 V 5% VSS = –5 V 5%, AGND = DGND = 0 V, REF INA = REF INB = +3 V. VOUTA, VOUTB load to AGND: RL = 2 k , CL = 100 pF. All Specifications TMIN to TMAX unless otherwise noted.) AD7242 Parameter J, A Versions 1 K, B Versions 1 Units Test Conditions/Comments DC ACCURACY Resolution 12 12 Bits Integral Nonlinearity ±1 ±1/2 LSB max Differential Nonlinearity ±1 ±1 LSB max Guaranteed Monotonic Bipolar Zero Error ±5 ±5 LSB max Positive Full-Scale Error 2 ±5 ±5 LSB max Negative Full-Scale Error 2 ±5 ±5 LSB max REFERENCE OUTPUT 3 REF OUT @ +25 °C 2.99/3.01 2.99/3.01 V min/V max TMIN to TMAX 2.98/3.02 2.98/3.02 V min/V max REF OUT Tempco 35 35 ppm/ °C typ Reference Load Change ( ∆REF OUT vs. ∆I) –1 –1 mV max Reference Load Current Change (0 µA–500 µA) REFERENCE INPUTS REF INA, REF INB Input Range 2.85/3.15 2.85/3.15 V min/V max 3 V ± 5% Input Current 1 1 µA max LOGIC INPUTS (LDACA, LDACB, TFSA, TFSB, TCLKA, TCLKB, DTA, DTB) Input High Voltage, VINH 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 V max VDD = 5 V ± 5% Input Current, IIN ±10 ±10 µA max VIN = 0 V to VDD Input Capacitance, CIN 4 10 10 pF max ANALOG OUTPUTS (VOUTA, VOUTB) Output Voltage Range ±3 ±3 V nom DC Output Impedance 0.1 0.1 Ω typ Short Circuit Current 20 20 mA typ AC CHARACTERISTICS 4 Voltage Output Settling Time Settling Time to Within ±1/2 LSB of Final Value Positive Full-Scale Change 3 3 µs max Typically 2 µs Negative Full-Scale Change 3 3 µs max Typically 2 µs Digital-to-Analog Glitch Impulse 10 10 nV secs typ DAC Code Change All 1s to All 0s Digital Feedthrough 2 2 nV secs typ Channel-to-Channel Isolation 110 110 dB typ VOUT = 10 kHz Sine Wave POWER REQUIREMENTS VDD +5 +5 V nom ±5% for Specified Performance VSS –5 –5 V nom ±5% for Specified Performance IDD 27 27 mA max Cumulative Current from the Two VDD Pins ISS 15 15 mA max Cumulative Current from the Two VSS Pins Total Power Dissipation 195 195 mW max Typically 130 mW NOTES 1Temperature ranges are as follows: J, K Versions: –40 °C to +85°C; A, B Versions: –40°C to +85°C. 2Measured with respect to REF IN and includes bipolar offset error. 3For capacitive loads greater than 50 pF, a series resistor is required (see Internal Reference section). 4Sample tested @ +25 °C to ensure compliance. Specifications subject to change without notice. AD7242 ORDERING GUIDE Temperature Integral Package Model Range Nonlinearity Option* AD7242JN –40 °C to +85°C ±1 LSB max N-24 AD7242KN –40 °C to +85°C ±1/2 LSB max N-24 AD7242JR –40 °C to +85°C ±1 LSB max R-28 AD7242KR –40 °C to +85°C ±1/2 LSB max R-28 AD7242AQ –40 °C to +85°C ±1 LSB max Q-24 AD7242BQ –40 °C to +85°C ±1/2 LSB max Q-24 *N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC). |
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Mô tả tương tự - AD7244AQ |
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