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ADS944 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers |
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ADS944 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers |
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2 / 8 page  ADS-944 2 ® ® PARAMETERS LIMITS UNITS +15V Supply (Pins 12) 0 to +16 Volts –15V Supply (Pin 13) 0 to –16 Volts +5V Supply (Pins 1, 10) 0 to +6 Volts –5V Supply (Pin 2, 14) 0 to –6 Volts Digital Input (Pin 8, 9, 32) –0.3 to +VDD +0.3 Volts Analog Input (Pin 3) –5 to +5 Volts Lead Temperature (10 seconds) +300 °C PARAMETERS MIN. TYP. MAX. UNITS Operating Temp. Range, Case ADS-944MC 0 — +70 °C ADS-944MM/883 –55 — +125 °C Thermal Impedance θjc — 7 — °C/Watt θca — 21 — °C/Watt Storage Temperature Range –65 — +150 °C Package Type 32-pin, metal-sealed, ceramic TDIP or SMT Weight 0.46 ounces (13 grams) ABSOLUTE MAXIMUM RATINGS PHYSICAL/ENVIRONMENTAL FUNCTIONAL SPECIFICATIONS (TA = +25°C, ±VCC = ±15V, +VDD = +5V,Vdd = –5.2V, 5MHz sampling rate, and a minimum 3 minute warmup unless otherwise specified.) +25°C 0 to +70°C –55 to +125°C ANALOG INPUT MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. UNITS Input Voltage Range — ±1.25 — — ±1.25 — — ±1.25 — Volts Input Resistance 500 550 — 500 550 — 500 550 — Ω Input Capacitance — 6 15 — 6 15 — 6 15 pF DIGITAL INPUT Logic Levels Logic "1" +2.0 — — +2.0 — — +2.0 — — Volts Logic "0" — — +0.8 — — +0.8 — — +0.8 Volts Logic Loading "1" — — +20 — — +20 — — +20 µA Logic Loading "0" — — –20 — — –20 — — –20 µA Start Convert Positive Pulse Width 40 80 — 40 80 — 40 80 — ns STATIC PERFORMANCE Resolution — 14 — — 14 — — 14 — Bits Integral Nonlinearity (fin = 10kHz) — ±0.75 — — ±0.75 — — ±1.0 — LSB Differential Nonlinearity (fin = 10kHz) –0.95 ±0.5 +1.2 –0.95 ±0.5 +1.2 –0.95 ±0.5 +1.5 LSB Full Scale Absolute Accuracy — ±0.15 ±0.4 — ±0.15 ±0.4 — ±0.4 ±0.8 %FSR Bipolar Zero Error (Tech Note 2) — ±0.1 ±0.3 — ±0.1 ±0.3 — ±0.3 ±0.6 %FSR Bipolar Offset Error (Tech Note 2) — ±0.2 ±0.4 — ±0.2 ±0.4 — ±0.3 ±0.9 %FSR Gain Error (Tech Note 2) — ±0.2 ±0.4 — ±0.2 ±0.4 — ±0.4 ±1.5 % No Missing Codes (fin = 10kHz) 14 — — 14 — — 14 — — Bits DYNAMIC PERFORMANCE Peak Harmonics (–0.5dB) dc to 100kHz — –85 –77 — –85 –75 — –81 –71 dB 100kHz to 1MHz — –78 –71 — –78 –70 — –75 –67 dB 1MHz to 2.5MHz — –75 –70 — –75 –68 — –71 –61 dB Total Harmonic Distortion (–0.5dB) dc to 100kHz — –82 –76 — –82 –74 — –78 –70 dB 100kHz to 1MHz — –77 –70 — –77 –70 — –73 –65 dB 1MHz to 2.5MHz — –73 –68 — –73 –65 — –70 –60 dB Signal-to-Noise Ratio (w/o distortion, –0.5dB) dc to 100kHz 73 76 — 73 76 — 71 75 — dB 100kHz to 1MHz 73 76 — 73 76 — 71 75 — dB 1MHz to 2.5MHz 73 75 — 73 75 — 71 75 — dB Signal-to-Noise Ratio (& distortion, –0.5dB) dc to 100kHz 71 75 — 71 75 — 68 73 — dB 100kHz to 1MHz 70 73 — 69 73 — 65 71 — dB 1MHz to 2.5MHz 68 71 — 66 71 — 62 69 — dB Noise — 135 — — 135 — — 135 — µVrms Two-tone Intermodulation Distortion (fin = 2.45MHz, 1.975MHz, fs = 5MHz, –0.5dB) — –82 — — –82 — — –82 — dB Input Bandwidth (–3dB) Small Signal (–20dB input) — 20 — — 20 — — 20 — MHz Large Signal (–0.5dB input) — 13 — — 13 — — 13 — MHz Feedthrough Rejection (fin = 2.5MHz) — 90 — — 90 — — 90 — dB Slew Rate — ±110 — — ±110 — — ±110 — V/µs Aperture Delay Time — +10 — — +10 — — +10 — ns Aperture Uncertainty — 3 — — 3 — — 3 — ps rms |
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