Datasheet LTC2391-16 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 16-Bit, 250ksps SAR ADC with 94dB SNR |
| Pages / Page | 24 / 4 — INTERNAL REFERENCE CHARACTERISTICS. The. denotes the specifi cations which … |
| File Format / Size | PDF / 229 Kb |
| Document Language | English |
INTERNAL REFERENCE CHARACTERISTICS. The. denotes the specifi cations which apply over the full
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LTC2391-16
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 4.076 4.096 4.116 V VREF Output Tempco IOUT = 0 (I-, H-Grades) (Note 11) l ±10 ±20 ppm/°C VREF Output Impedance –0.1mA ≤ IOUT ≤ 0.1mA 2.6 kΩ External Reference Voltage 2.5 4.096 AVP – 0.5 V REFIN Input Impedance 85 kΩ VREF Line Regulation AVP = 4.75V to 5.25V 0.3 mV/V VCM Output Voltage IOUT = 0 2.08 V
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage l 0.8 • OVP V VIL Low Level Input Voltage l 0.5 V IIN Digital Input Current VIN = 0V to OVP l –10 10 μA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage IO = –500μA l OVP – 0.2 V VOL Low Level Output Voltage IO = 500μA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVP l –10 10 μA ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = OVP 10 mA
POWER REQUIREMENTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VAVP , VDVP Supply Voltage l 4.75 5 5.25 V VOVP Supply Voltage 1.71 5.25 V IDD Supply Current 250ksps Sample Rate with Nap Mode l 19 25 mA Power Down Mode Conversion Done and All Digital Inputs Tied to OVP l 35 250 μA PD Power Dissipation 250ksps Sample Rate with Nap Mode 95 125 mW Power Down Mode Conversion Done and All Digital Inputs Tied to OVP 175 1250 μW 239116fa 4
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 4.076 4.096 4.116 V VREF Output Tempco IOUT = 0 (I-, H-Grades) (Note 11) l ±10 ±20 ppm/°C VREF Output Impedance –0.1mA ≤ IOUT ≤ 0.1mA 2.6 kΩ External Reference Voltage 2.5 4.096 AVP – 0.5 V REFIN Input Impedance 85 kΩ VREF Line Regulation AVP = 4.75V to 5.25V 0.3 mV/V VCM Output Voltage IOUT = 0 2.08 V
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage l 0.8 • OVP V VIL Low Level Input Voltage l 0.5 V IIN Digital Input Current VIN = 0V to OVP l –10 10 μA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage IO = –500μA l OVP – 0.2 V VOL Low Level Output Voltage IO = 500μA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVP l –10 10 μA ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = OVP 10 mA
POWER REQUIREMENTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VAVP , VDVP Supply Voltage l 4.75 5 5.25 V VOVP Supply Voltage 1.71 5.25 V IDD Supply Current 250ksps Sample Rate with Nap Mode l 19 25 mA Power Down Mode Conversion Done and All Digital Inputs Tied to OVP l 35 250 μA PD Power Dissipation 250ksps Sample Rate with Nap Mode 95 125 mW Power Down Mode Conversion Done and All Digital Inputs Tied to OVP 175 1250 μW 239116fa 4
