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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD6644ST/PCB датащи(PDF) 2 Page - Analog Devices |
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AD6644ST/PCB датащи(HTML) 2 Page - Analog Devices |
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2 / 19 page  –2– REV. 0 AD6644–SPECIFICATIONS DC SPECIFICATIONS Test AD6644AST-40 AD6644AST-65 Parameter Temp Level Min Typ Max Min Typ Max Unit RESOLUTION 14 14 Bits ACCURACY No Missing Codes Full II Guaranteed Guaranteed Offset Error Full II –10 3 +10 –10 3 +10 mV Gain Error Full II –10 –6 +10 –10 –6 +10 % FS Differential Nonlinearity (DNL) Full II –1.0 ±0.25 +1.5 –1.0 ±0.25 +1.5 LSB Integral Nonlinearity (INL) Full V ±0.50 ±0.50 LSB TEMPERATURE DRIFT Offset Error Full V 10 10 ppm/ °C Gain Error Full V 95 95 ppm/ °C POWER SUPPLY REJECTION (PSRR) Full V ±1.0 ±1.0 mV/V REFERENCE OUT (VREF) Full V 2.4 2.4 V ANALOG INPUTS (AIN, AIN) Differential Input Voltage Range Full V 2.2 2.2 V p-p Differential Input Resistance Full V 1 1 k Ω Differential Input Capacitance 25 °C V 1.5 1.5 pF POWER SUPPLY Supply Voltage AVCC 1 Full II 4.85 5.0 5.25 4.85 5.0 5.25 V DVCC Full II 3.0 3.3 3.6 3.0 3.3 3.6 V Supply Current IAVCC (AVCC = 5.0 V) Full II 245 276 245 276 mA IDVCC (DVCC = 3.3 V) Full II 30 36 30 36 mA POWER CONSUMPTION Full II 1.3 1.5 1.3 1.5 W NOTES 1AV CC may be varied from 4.85 V to 5.25 V. However, rated ac (harmonics) performance is valid only over the range AVCC = 5.0 V to 5.25 V. Specifications subject to change without notice. DIGITAL SPECIFICATIONS Test AD6644AST-40 AD6644AST-65 Parameter Temp Level Min Typ Max Min Typ Max Unit ENCODE INPUTS (ENC, ENC) Differential Input Voltage 1 Full IV 0.4 0.4 V p-p Differential Input Resistance 25 °C V 10 10 k Ω Differential Input Capacitance 25 °C V 2.5 2.5 pF LOGIC OUTPUTS (D13–D0, DRY, OVR) Logic Compatibility CMOS CMOS Logic “1” Voltage 2 Full V 2.5 2.5 V Logic “0” Voltage 2 Full V 0.4 0.4 V Output Coding Two’s Complement Two’s Complement DMID Full V DVCC/2 DVCC/2 V NOTES 1All ac specifications tested by driving ENCODE and ENCODE differentially. Reference Figure 22 for performance versus encode power. 2Digital output logic levels: DV CC = 3.3 V, CLOAD = 10 pF. Capacitive loads >10 pF will degrade performance. Specifications subject to change without notice. SWITCHING SPECIFICATIONS Test AD6644AST-40 AD6644AST-65 Parameter Temp Level Min Typ Max Min Typ Max Unit Maximum Conversion Rate Full II 40 65 MSPS Minimum Conversion Rate Full IV 15 15 MSPS ENCODE Pulsewidth High Full IV 10 6.5 ns ENCODE Pulsewidth Low Full IV 10 6.5 ns Specifications subject to change without notice. (AVCC = 5 V, DVCC = 3.3 V; TMIN = –25 C, TMAX = +85 C) (AVCC = 5 V, DVCC = 3.3 V; TMIN = –25 C, TMAX = +85 C) (AVCC = 5 V, DVCC = 3.3 V; ENCODE and ENCODE = Maximum Conversion Rate MSPS; TMIN = –25 C, TMAX = +85 C) |
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