Datasheet LTC1748 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | 14-Bit, 80Msps Low Noise ADC |
| Páginas / Página | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, … |
| Formato / tamaño de archivo | PDF / 541 Kb |
| Idioma del documento | Inglés |
ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, 2). CO VERTER CHARACTERISTICS The
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LTC1748
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION OVDD = VDD (Notes 1, 2)
ORDER PART Supply Voltage (VDD) ... 5.5V TOP VIEW NUMBER Analog Input Voltage (Note 3) .. – 0.3V to (VDD + 0.3V) SENSE 1 48 OF V 2 47 OGND Digital Input Voltage (Note 4) ... – 0.3V to (V CM DD + 0.3V) GND 3 46 D13 LTC1748CFW + Digital Output Voltage ... – 0.3V to (V A 4 45 IN D12 DD + 0.3V) – LTC1748IFW A 5 44 IN D11 OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 D10 Power Dissipation .. 2000mW DD V 8 41 DD D9 Operating Temperature Range GND 9 40 D8 REFLB 10 39 D7 LTC1748C ... 0°C to 70°C REFHA 11 38 OGND LTC1748I .. – 40°C to 85°C GND 12 37 GND GND 13 36 GND Storage Temperature Range ... – 65°C to 150°C REFLA 14 35 D6 REFHB 15 34 D5 Lead Temperature (Soldering, 10 sec).. 300°C GND 16 33 D4 V 17 32 DD OVDD V 18 31 DD D3 GND 19 30 D2 V 20 29 DD D1 GND 21 28 D0 MSBINV 22 27 OGND ENC 23 26 CLKOUT ENC 24 25 OE FW PACKAGE 48-LEAD PLASTIC TSSOP TJMAX = 150°C, θJA = 35°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
U CO VERTER CHARACTERISTICS The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 14 Bits Integral Linearity Error (Note 6) – 3 ±0.75 3 LSB Differential Linearity Error ● –1 ±0.5 1.5 LSB Offset Error (Note 7) – 35 ±8 35 mV Gain Error External Reference (SENSE = 1.6V) – 3.5 ±1 3.5 %FS Full-Scale Tempco Internal Reference ±40 ppm/°C External Reference (SENSE = 1.6V) ±20 ppm/°C Offset Tempco ±20 µV/°C Input Referred Noise (Transition Noise) SENSE = 1.6V 0.82 LSBRMS
U U A ALOG I PUT The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Input Range (Note 8) 4.75V ≤ VDD ≤ 5.25V ● ±1 to ±1.6 V I + – IN Analog Input Leakage Current 0 < AIN , AIN < VDD ● –1 1 µA CIN Analog Input Capacitance Sample Mode ENC < ENC 8 pF Hold Mode ENC > ENC 4 pF tACQ Sample-and-Hold Acquisition Time ● 5 6 ns tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.15 psRMS CMRR Analog Input Common Mode Rejection Ratio 1.5V < (A – + IN = AIN ) < 3V 80 dB 1748fa 2
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION OVDD = VDD (Notes 1, 2)
ORDER PART Supply Voltage (VDD) ... 5.5V TOP VIEW NUMBER Analog Input Voltage (Note 3) .. – 0.3V to (VDD + 0.3V) SENSE 1 48 OF V 2 47 OGND Digital Input Voltage (Note 4) ... – 0.3V to (V CM DD + 0.3V) GND 3 46 D13 LTC1748CFW + Digital Output Voltage ... – 0.3V to (V A 4 45 IN D12 DD + 0.3V) – LTC1748IFW A 5 44 IN D11 OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 D10 Power Dissipation .. 2000mW DD V 8 41 DD D9 Operating Temperature Range GND 9 40 D8 REFLB 10 39 D7 LTC1748C ... 0°C to 70°C REFHA 11 38 OGND LTC1748I .. – 40°C to 85°C GND 12 37 GND GND 13 36 GND Storage Temperature Range ... – 65°C to 150°C REFLA 14 35 D6 REFHB 15 34 D5 Lead Temperature (Soldering, 10 sec).. 300°C GND 16 33 D4 V 17 32 DD OVDD V 18 31 DD D3 GND 19 30 D2 V 20 29 DD D1 GND 21 28 D0 MSBINV 22 27 OGND ENC 23 26 CLKOUT ENC 24 25 OE FW PACKAGE 48-LEAD PLASTIC TSSOP TJMAX = 150°C, θJA = 35°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
U CO VERTER CHARACTERISTICS The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 14 Bits Integral Linearity Error (Note 6) – 3 ±0.75 3 LSB Differential Linearity Error ● –1 ±0.5 1.5 LSB Offset Error (Note 7) – 35 ±8 35 mV Gain Error External Reference (SENSE = 1.6V) – 3.5 ±1 3.5 %FS Full-Scale Tempco Internal Reference ±40 ppm/°C External Reference (SENSE = 1.6V) ±20 ppm/°C Offset Tempco ±20 µV/°C Input Referred Noise (Transition Noise) SENSE = 1.6V 0.82 LSBRMS
U U A ALOG I PUT The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Input Range (Note 8) 4.75V ≤ VDD ≤ 5.25V ● ±1 to ±1.6 V I + – IN Analog Input Leakage Current 0 < AIN , AIN < VDD ● –1 1 µA CIN Analog Input Capacitance Sample Mode ENC < ENC 8 pF Hold Mode ENC > ENC 4 pF tACQ Sample-and-Hold Acquisition Time ● 5 6 ns tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.15 psRMS CMRR Analog Input Common Mode Rejection Ratio 1.5V < (A – + IN = AIN ) < 3V 80 dB 1748fa 2