Datasheet AD7865 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Fast, Low-Power, 4-Channel, Simultaneous Sampling, 14-bit ADC |
| Pages / Page | 20 / 4 — AD7865. Parameter. A, Y Versions1. B Version. Unit. Test … |
| Revision | B |
| File Format / Size | PDF / 243 Kb |
| Document Language | English |
AD7865. Parameter. A, Y Versions1. B Version. Unit. Test Conditions/Comments
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AD7865 Parameter A, Y Versions1 B Version Unit Test Conditions/Comments
REFERENCE INPUT/OUTPUT VREF IN Input Voltage Range 2.375/2.625 2.375/2.625 VMIN/VMAX 2.5 V ± 5% VREF IN Input Capacitance6 10 10 pF max VREF OUT Output Voltage 2.5 2.5 V nom VREF OUT Error @ 25°C ±10 ±10 mV max V ± REF OUT Error TMIN to TMAX 20 ±20 mV max VREF OUT Temperature Coefficient 25 25 ppm/°C typ VREF OUT Output Impedance 6 6 kΩ typ See Reference Section LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 V max VDD = 5 V ± 5% Input Current, I ± IN 10 ±10 µA max Input Capacitance, C 6 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 4.0 V min ISOURCE = 400 µA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 1.6 mA DB13–DB0 High Impedance Leakage Current ±10 ±10 µA max Capacitance6 10 10 pF max Output Coding AD7865-1, AD7865-3 Two’s Complement AD7865-2 Straight (Natural) Binary CONVERSION RATE Conversion Time 2.4 2.4 µs max For Single Channel Track/Hold Acquisition Time2, 3 0.35 0.35 µs max Throughput Time 350 350 kSPS max For Single Channel 100 100 kSPS max For All Four Channels POWER REQUIREMENTS VDD 5 5 V nom ±5% for Specified Performance IDD AD7865-1 Typically 23 mA, Logic Inputs = 0 V or VDD Normal Mode 32 32 mA max Standby Mode 20 20 µA max AD7865-2 Typically 20 mA, Logic Inputs = 0 V or VDD Normal Mode 30 30 mA max Standby Mode 20 20 µA max AD7865-3 Typically 23 mA, Logic Inputs = 0 V or VDD Normal Mode 32 32 mA max Standby Mode 20 20 µA max Power Dissipation AD7865-1 Normal Mode 160 160 mW max Typically 115 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW AD7865-2 Normal Mode 150 150 mW max Typically 100 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW AD7865-3 Normal Mode 160 160 mW max Typically 115 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW NOTES 1Temperature ranges are as follows : A, B Versions: –40°C to +85°C, Y Version: –40°C to +105°C. 2Performance measured through full channel (SHA and ADC). 3See Terminology. 4Total Harmonic Distortion and Peak Harmonic or Spurious Noise are specified at –83 dBs for the AD7865-2. 5Measured between any two channels with the other two channels grounded. 6Sample tested @ 25°C to ensure compliance. Specifications subject to change without notice. REV. B –3–
REFERENCE INPUT/OUTPUT VREF IN Input Voltage Range 2.375/2.625 2.375/2.625 VMIN/VMAX 2.5 V ± 5% VREF IN Input Capacitance6 10 10 pF max VREF OUT Output Voltage 2.5 2.5 V nom VREF OUT Error @ 25°C ±10 ±10 mV max V ± REF OUT Error TMIN to TMAX 20 ±20 mV max VREF OUT Temperature Coefficient 25 25 ppm/°C typ VREF OUT Output Impedance 6 6 kΩ typ See Reference Section LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 V max VDD = 5 V ± 5% Input Current, I ± IN 10 ±10 µA max Input Capacitance, C 6 IN 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 4.0 V min ISOURCE = 400 µA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 1.6 mA DB13–DB0 High Impedance Leakage Current ±10 ±10 µA max Capacitance6 10 10 pF max Output Coding AD7865-1, AD7865-3 Two’s Complement AD7865-2 Straight (Natural) Binary CONVERSION RATE Conversion Time 2.4 2.4 µs max For Single Channel Track/Hold Acquisition Time2, 3 0.35 0.35 µs max Throughput Time 350 350 kSPS max For Single Channel 100 100 kSPS max For All Four Channels POWER REQUIREMENTS VDD 5 5 V nom ±5% for Specified Performance IDD AD7865-1 Typically 23 mA, Logic Inputs = 0 V or VDD Normal Mode 32 32 mA max Standby Mode 20 20 µA max AD7865-2 Typically 20 mA, Logic Inputs = 0 V or VDD Normal Mode 30 30 mA max Standby Mode 20 20 µA max AD7865-3 Typically 23 mA, Logic Inputs = 0 V or VDD Normal Mode 32 32 mA max Standby Mode 20 20 µA max Power Dissipation AD7865-1 Normal Mode 160 160 mW max Typically 115 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW AD7865-2 Normal Mode 150 150 mW max Typically 100 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW AD7865-3 Normal Mode 160 160 mW max Typically 115 mW. VDD = 5 V Standby Mode 100 100 µW max Typically 15 µW NOTES 1Temperature ranges are as follows : A, B Versions: –40°C to +85°C, Y Version: –40°C to +105°C. 2Performance measured through full channel (SHA and ADC). 3See Terminology. 4Total Harmonic Distortion and Peak Harmonic or Spurious Noise are specified at –83 dBs for the AD7865-2. 5Measured between any two channels with the other two channels grounded. 6Sample tested @ 25°C to ensure compliance. Specifications subject to change without notice. REV. B –3–
