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AD7569 Datasheet(PDF) 2 Page - Analog Devices |
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AD7569 Datasheet(HTML) 2 Page - Analog Devices |
2 / 20 page DAC SPECIFICATIONS 1 AD7569 J, A Versions 3 AD7569 AD7669 K, B AD7569 AD7569 Parameter J Version Versions S Version T Version Units Conditions/Comments STATIC PERFORMANCE Resolution 4 8 8 8 8 Bits Total Unadjusted Error 5 ±2 ±2 ±3 ±3 LSB typ Relative Accuracy 5 ±1 ±1/2 ±1 ±1/2 LSB max Differential Nonlinearity 5 ±1 ±3/4 ±1 ±3/4 LSB max Guaranteed Monotonic Unipolar Offset Error DAC data is all 0s; VSS = 0 V @ +25 °C ±2 ±1.5 ±2 ±1.5 LSB max Typical tempco is 10 µV/°C for +1.25 V range TMIN to TMAX ±2.5 ±2 ±2.5 ±2 LSB max Bipolar Zero Offset Error DAC data is all 0s; VSS = –5 V @ +25 °C ±2 ±1 5 ±2 ±1.5 LSB max Typical tempco is 20 µV/°C for ±1.25 V range TMIN to TMAX ±2.5 ±2 ±2.5 ±2 LSB max Full-Scale Error 6 (AD7569 Only) VDD = 5 V @ +25 °C ±2 ±1 ±2 ±1 LSB max TMIN to TMAX ±3 ±2 ±4 ±3 LSB max Full-Scale Error 6 (AD7669 Only) VDD = 5 V @ +25 °C ±3 LSB max TMIN to TMAX ±4.5 LSB max DACA/DACB Full-Scale Error Match 6 (AD7669 Only) ±2.5 LSB max VDD = 5 V ∆Full Scale/∆V DD, TA = +25 °C 0.5 0.5 0.5 0.5 LSB max VOUT = 2.5 V; ∆V DD = ±5% ∆Full Scale/∆V SS, TA = +25°C 0.5 0.5 0.5 0.5 LSB max VOUT = –2.5 V; ∆VSS = ± 5% Load Regulation at Full Scale 0.2 0.2 0.2 0.2 LSB max RL = 2 kΩ to °/C DYNAMIC PERFORMANCE Signal-to-Noise Ratio 5 (SNR) 44 46 44 46 dB min VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz Total Harmonic Distortion 5 (THD) 48 48 48 48 dB max VOUT = 20 kHz full-scale sine wave with fSAMPLING = 400 kHz Intermodulation Distortion 5 (IMD) 55 55 55 55 dB typ fa = 18.4 kHz, fb = 14.5 kHz with fSAMPLING = 400 kHz ANALOG OUTPUT Output Voltage Ranges Unipolar 0 to +1.25/2.5 Volts VDD = +5 V, VSS = 0 V Bipolar ±1.25/±2.5 Volts VDD = +5 V, VSS = –5 V LOGIC INPUTS CS , X/B,WR, RANGE, RESET, DB0–DB7 Input Low Voltage, VINL 0.8 0.8 0.8 0.8 V max Input High Voltage, VINH 2.4 2.4 2.4 2.4 V min Input Leakage Current 10 10 10 10 µA max VIN = 0 to VDD Input Capacitance 7 10 10 10 10 pF max DB0–DB7 Input Coding (Single Supply) Binary Input Coding (Dual Supply) 2s Complement AC CHARACTERlSTICS 7 Voltage Output Settling Time Settling time to within ±1/2 LSB of final value Positive Full-Scale Change 2 2 2 2 µs max Typically 1 µs Negative Full-Scale Change (Single Supply) 4 4 4 4 µs max Typically 2 µs Negative Full-Scale Change (Dual Supply) 2 2 2 2 µs max Typically 1 µs Digital-to-Analog Glitch Impulse 5 15 15 15 15 nV secs typ Digital Feedthrough 5 1 1 1 1 nV secs typ VIN to VOUT Isolation 60 60 60 60 dB typ VIN = ± 2.5 V, 50 kHz Sine Wave DAC to DAC Crosstalk 5 (AD7669 Only) 1 nV secs typ DACA to DACB Isolation 5 (AD7669 Only) –70 dB max POWER REQUIREMENTS VDD Range 4.75/5.25 4.75/5.25 4.75/5.25 4.75/5.25 V min/V max For Specified Performance VSS Range (Dual Supplies) –4.75/–5.25 –4.75/–5.25 –4.75/–5.25 –4.75/–5.25 V min/V max Specified Performance also applies to V SS = 0 V for unipolar ranges. IDD VOUT = VIN = 2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V (AD7569) 13 13 13 13 mA max Output unloaded (AD7669) 18 mA max Outputs unloaded ISS (Dual Supplies) VOUT = VIN = –2.5 V; Logic Inputs = 2.4 V; CLK = 0.8 V (AD7569) 4 4 4 4 mA max Output unloaded (AD7669) 6 mA max Outputs unloaded DAC/ADC MATCHING Gain Matching 6 VIN to VOUT match with VIN = ± 2.5 V, @ +25 °C 1 111% typ 20 kHz sine wave TMIN to TMAX 1 111% typ NOTES 1Specifications apply to both DACs in the AD7669. V OUT applies to both VOUTA and VOUTB of the AD7669. 2Except where noted, specifications apply for all output ranges including bipolar ranges with dual supply operation. 3Temperature ranges as follows: J, K versions; 0 °C to +70°C A, B versions; –40 °C to +85°C S, T versions; –55 °C to +125°C 41 LSB = 4.88 mV for 0 V to +1.25 V output range, 9.76 mV for 0 V to +2.5 V and ±1.25 V ranges and 19.5 mV for ±2.5 V range. 5See Terminology. 6Includes internal voltage reference error and is calculated after offset error has been adjusted out. Ideal unipolar full-scale voltage is (FS – 1 LSB); ideal bipolar positive full-scale voltage is (FS/2 – 1 LSB) and ideal bipolar negative full-scale voltage is –FS/2. 7Sample tested at +25 °C to ensure compliance. Specifications subject to change without notice. –2– REV. B AD7569/AD7669–SPECIFICATIONS (VDD = +5 V 5%; VSS 2 = RANGE = AGND DAC = AGNDADC = DGND = 0 V; RL = 2 k , CL = 100 pF to AGNDDAC unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.) |
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