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ADS7808P Datasheet(PDF) 3 Page - Burr-Brown (TI) |
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ADS7808P Datasheet(HTML) 3 Page - Burr-Brown (TI) |
3 / 10 page 3 ® ADS7808 DIGITAL OUTPUTS Data Format Data Coding Pipeline Delay Data Clock Internal EXT/INT LOW 2.3 T MHz (Output Only When Transmitting Data) External EXT/INT HIGH 0.1 10 TT MHz (Can Run Continually) VOL ISINK = 1.6mA +0.4 T V VOH ISOURCE = 500µA+4 T V Leakage Current High-Z State, ±5 T µA VOUT = 0V to VDIG Output Capacitance High-Z State 15 15 pF POWER SUPPLIES Specified Performance VDIG Must be ≤ V ANA +4.75 +5 +5.25 T **V VANA +4.75 +5 +5.25 T ** V IDIG 0.3 * mA IANA 16 * mA Power Dissipation: PWRD LOW VDIG = VANA = 5V, fS = 100kHz 100 * mW PWRD HIGH 50 * µW TEMPERATURE RANGE Specified Performance –40 +85 * * °C Derated Performance –55 +125 * * °C Storage –65 +150 * * °C Thermal Resistance ( θ JA) Plastic DIP 75 * °C/W SOIC 75 * °CW NOTES: (1) LSB means Least Significant Bit. For the ±10V input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures. (3) As measured with fixed resistors in Figure 4. Adjustable to zero with external potentiometer. (4) For bipolar input ranges, full scale error is the worst case of –Full Scale or +Full Scale untrimmed deviation from ideal first and last code transitions, divided by the transition voltage (not divided by the full-scale range) and includes the effect of offset error. For unipolar input ranges, full scale error is the deviation of the last code transition divided by the transition voltage. It also includes the effect of offset error. (5) All specifications in dB are referred to a full-scale ±10V input. (6) Full-Power Bandwidth defined as Full-Scale input frequency at which Signal- to (Noise + Distortion) degrades to 60dB. (7) Recovers to specified performance after 2 x FS input overvoltage. ELECTROSTATIC DISCHARGE SENSITIVITY Electrostatic discharge can cause damage ranging from per- formance degradation to complete device failure. Burr-Brown Corporation recommends that this integrated circuit be handled and stored using appropriate ESD protection methods. SPECIFICATIONS (CONT) ELECTRICAL At TA = –40°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors shown in Figure 4, unless otherwise specified. ADS7808P/U ADS7808PB/UB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Analog Inputs: R1IN .......................................................................... ±25V R2IN .......................................................................... ±25V R3IN .......................................................................... ±25V CAP ..................................... VANA+0.3V to AGND2 –0.3V REF ....................................... Indefinite Short to AGND2, Momentary Short to VANA Ground Voltage Differences: DGND, AGND2 ................................. ±0.3V VANA ...................................................................................................... 7V VDIG to VANA ....................................................................................... +0.3 VDIG ....................................................................................................... 7V Digital Inputs ............................................................. –0.3V to VDIG +0.3V Maximum Junction Temperature .................................................. +165 °C Internal Power Dissipation ............................................................ 700mW Lead Temperature (soldering, 10s) .............................................. +300 °C ABSOLUTE MAXIMUM RATINGS ORDERING INFORMATION MINIMUM MAXIMUM SIGNAL-TO- SPECIFICATION LINEARITY (NOISE + DISTORTION) TEMPERATURE PRODUCT ERROR (LSB) RATIO(dB) RANGE ( °C) PACKAGE ADS7808P ±0.9 70 –40 °C to +85°C 20-Pin Plastic DIP ADS7808PB ±0.45 72 –40 °C to +85°C 20-Pin Plastic DIP ADS7808U ±0.9 70 –40 °C to +85°C 20-Pin SOIC ADS7808UB ±0.45 72 –40 °C to +85°C 20-Pin SOIC PACKAGE INFORMATION PACKAGE DRAWING PRODUCT PACKAGE NUMBER(1) ADS7808P 20-Pin Plastic DIP 222 ADS7808PB 20-Pin Plastic DIP 222 ADS7808U 20-Pin SOIC 221 ADS7808UB 20-Pin SOIC 221 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. Serial 12 bits Binary Two's Complement or Straight Binary Conversion results only available after completed conversion. Selectable for internal or external data clock |
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