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ADS8684A Datasheet(PDF) 7 Page - Texas Instruments |
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ADS8684A Datasheet(HTML) 7 Page - Texas Instruments |
7 / 80 page ADS8684A, ADS8688A www.ti.com SBAS680 – JULY 2015 Electrical Characteristics (continued) Minimum and maximum specifications are at TA = –40°C to 125°C. Typical specifications are at TA = 25°C. AVDD = 5 V, DVDD = 3 V, VREF = 4.096 V (internal), and fSAMPLE = 500 kSPS, unless otherwise noted. TEST PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LEVEL(1) SYSTEM PERFORMANCE Resolution 16 Bits A NMC No missing codes 16 Bits A DNL Differential nonlinearity –0.99 ±0.5 1.5 LSB(3) A INL Integral nonlinearity(4) –2 ±0.75 2 LSB A EG Gain error At TA = 25°C, all input ranges ±0.02 ±0.05 %FSR(5) A Gain error matching At TA = 25°C, all input ranges ±0.02 ±0.05 %FSR A (channel-to-channel) Gain error temperature drift All input ranges 1 4 ppm/°C B At TA = 25°C, ±0.5 ±1 A input range = ±2.5 × VREF (6) At TA = 25°C, ±0.5 ±1 A input range = ±1.25 × VREF At TA = 25°C, ±0.5 ±1.5 A input range = ±0.625 × VREF EO Offset error mV At TA = 25°C, ±0.5 ±1.5 A input range = ±0.3125 × VREF At TA = 25°C, ±0.5 ±1.5 A input range = ±0.15625 × VREF At TA = 25°C, ±0.5 ±2 A all unipolar input ranges At TA = 25°C, ±0.5 ±1 A input range = ±2.5 × VREF (6) At TA = 25°C, ±0.5 ±1 A input range = ±1.25 × VREF At TA = 25°C, ±0.5 ±1.5 A input range = ±0.625 × VREF Offset error matching mV (channel-to-channel) At TA = 25°C, ±0.5 ±1.5 A input range = ±0.3125 × VREF At TA = 25°C, ±0.5 ±1.5 A input range = ±0.15625 × VREF At TA = 25°C, ±0.5 ±2 A all unipolar input ranges Input range = ±2.5 × VREF 1 3 B Input range = ±1.25 × VREF 1 3 B Input range = ±0.625 × VREF 1 3 B Input range = ±0.3125 × VREF 2 6 B Offset error temperature drift Input range = ±0.15625 × VREF 4 12 ppm/°C B Input range = 0 to 2.5 × VREF 1 3 B Input range = 0 to 1.25 × VREF 1 3 B Input range = 0 to 0.625 × VREF 2 6 B Input range = 0 to 0.3125 × VREF 4 12 B SAMPLING DYNAMICS tCONV Conversion time 850 ns A tACQ Acquisition time 1150 ns A Maximum throughput rate fS 500 kSPS A without latency (3) LSB = least significant bit. (4) This parameter is the endpoint INL, not best-fit INL. (5) FSR = full-scale range. (6) Does not include the shift in offset over time. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: ADS8684A ADS8688A |
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