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AD557 Folha de dados(PDF) 2 Page - Analog Devices |
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AD557 Folha de dados(HTML) 2 Page - Analog Devices |
2 / 6 page AD557–SPECIFICATIONS Model Min Typ Max Unit RESOLUTION 8 Bits RELATIVE ACCURACY 0 °C to 70°C ± 1/2 1 LSB OUTPUT Ranges 0 to 2.56 V Current Source 5 mA Sink Internal Passive Pull-Down to Ground 2 OUTPUT SETTLING TIME 3 0.8 1.5 µs FULL-SCALE ACCURACY 4 @ 25 °C ± 1.5 ± 2.5 LSB TMIN to TMAX ± 2.5 ± 4.0 LSB ZERO ERROR @ 25 °C ± 1 LSB TMIN to TMAX ± 3 LSB MONOTONICITY 5 TMIN to TMAX Guaranteed But Not Tested DIGITAL INPUTS TMIN to TMAX Input Current 100 µA Data Inputs, Voltage Bit On—Logic “1” 2.0 V Bit On—Logic “0” 0 0.8 V Control Inputs, Voltage On—Logic “1” 2.0 V On—Logic “0” 0 0.8 V Input Capacitance 4 pF TIMING 6 tW Strobe Pulsewidth 225 ns TMIN to TMAX 300 ns tDH Data Hold Time 10 ns TMIN to TMAX 10 ns tDS Data Setup Time 225 ns TMIN to TMAX 300 ns POWER SUPPLY Operating Voltage Range (VCC) 2.56 Volt Range 4.5 5.5 V Current (ICC)15 25 mA Rejection Ratio 0.03 %/% POWER DISSIPATION, VCC = 5 V 75 125 mW OPERATING TEMPERATURE RANGE 0 70 °C NOTES 1 Relative Accuracy is defined as the deviation of the code transition points from the ideal transfer point on a straight line from the offset to the full scale of the device. See “Measuring Offset Error” on the AD558 data sheet. 2Passive pull-down resistance is 2 k Ω. 3Settling time is specified for a positive-going full-scale step to ±1/2 LSB. Negative- going steps to zero are slower, but can be improved with an external pull-down. 4The full-scale output voltage is 2.55 V and is guaranteed with a 5 V supply. 5A monotonic converter has a maximum differential linearity error of ±1 LSB. 6See Figure 7. Specifications shown in boldface are tested on all production units at electrical test. Specifications subject to change without notice. (@ TA = 25 C, VCC = 5 V unless otherwise noted) PIN CONFIGURATIONS DIP VOUT SENSE B CS CE 10 9 13 12 11 16 15 14 8 1 2 3 4 7 6 5 TOP VIEW (Not to Scale) AD557 GND VOUT SENSE A VOUT BIT 7 BIT 6 BIT 5 +VCC GND BIT 4 BIT 3 BIT 2 (MSB) BIT 1 (LSB) BIT 8 PLCC 20 19 1 2 3 4 5 6 7 8 9 10 11 12 13 TOP VIEW (Not to Scale) PIN 1 IDENTIFIER 18 14 15 16 17 BIT 6 BIT 5 NC BIT 4 BIT 3 VOUT SENSE B GND NC GND +VCC AD557 NC = NO CONNECT REV. B –2– ORDERING GUIDE Temperature Package Package Model Range Description Option AD557JN 0 °C to 70°C Plastic DIP N-16 AD557JP 0 °C to 70°C Plastic Leaded Chip Carrier P-20A ABSOLUTE MAXIMUM RATINGS * VCC to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 18 V Digital Inputs (Pins 1–10) . . . . . . . . . . . . . . . . . . . 0 V to 7.0 V VOUT . . . . . . . . . . . . . . . . . . . . . . . Indefinite Short to Ground Momentary Short to VCC Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 mW Storage Temperature Range N/P (Plastic) Packages . . . . . . . . . . . . . . . . –25 °C to +100°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300 °C Thermal Resistance Junction to Ambient/Junction to Case N/P (Plastic) Packages . . . . . . . . . . . . . . . . . . 140/55 °C/W *Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. |
Nº de peça semelhante - AD557_01 |
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Descrição semelhante - AD557_01 |
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