Datasheet LTC1749 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | 12-Bit, 80Msps Wide Bandwidth ADC |
| Seiten / Seite | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, … |
| Dateiformat / Größe | PDF / 289 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, 2). CO VERTER CHARACTERISTICS The
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LTC1749
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION OVDD = VDD (Notes 1, 2)
TOP VIEW ORDER PART Supply Voltage (VDD) ... 5.5V SENSE 1 48 OF NUMBER Analog Input Voltage (Note 3) .. – 0.3V to (VDD + 0.3V) V 2 47 CM OGND Digital Input Voltage (Note 4) ... – 0.3V to (VDD + 0.3V) GND 3 46 D11 + LTC1749CFW A 4 45 D10 Digital Output Voltage ... – 0.3V to (V IN DD + 0.3V) A – 5 44 IN D9 LTC1749IFW OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 DD D8 Power Dissipation .. 2000mW V 8 41 DD D7 GND 9 40 D6 Operating Temperature Range REFLB 10 39 D5 LTC1749C ... 0°C to 70°C REFHA 11 38 OGND GND 12 37 GND LTC1749I .. – 40°C to 85°C GND 13 36 GND Storage Temperature Range ... – 65°C to 150°C REFLA 14 35 D4 REFHB 15 34 D3 Lead Temperature (Soldering, 10 sec).. 300°C GND 16 33 D2 V 17 32 DD OVDD V 18 31 DD D1 GND 19 30 D0 V 20 29 DD NC GND 21 28 NC MSBINV 22 27 OGND ENC 23 26 CLKOUT ENC 24 25 PGA 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) ● 12 Bits Integral Linearity Error (Note 6) – 1.0 ±0.4 1.0 LSB ● –1.5 1.5 LSB Differential Linearity Error ● –0.8 ±0.2 0.8 LSB Offset Error (Note 7) External Reference (VSENSE = 1.125V, PGA = 0) –35 ±8 35 mV Gain Error External Reference (VSENSE = 1.125V, PGA = 0) –3.5 ±1 3.5 %FS Full-Scale Tempco Internal Reference ±40 ppm/°C External Reference (VSENSE = 1.125V) ±20 ppm/°C Offset Tempco ±20 µV/°C Input Referred Noise (Transition Noise) VSENSE = 1.125V, PGA = 0 0.23 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 ● ±0.7 to ±1.125 V I + – IN Analog Input Leakage Current 0 < AIN , AIN < VDD ● –1 1 µA CIN Analog Input Capacitance Sample Mode ENC < ENC 6.9 pF Hold Mode ENC > ENC 2.4 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 1749f 2
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION OVDD = VDD (Notes 1, 2)
TOP VIEW ORDER PART Supply Voltage (VDD) ... 5.5V SENSE 1 48 OF NUMBER Analog Input Voltage (Note 3) .. – 0.3V to (VDD + 0.3V) V 2 47 CM OGND Digital Input Voltage (Note 4) ... – 0.3V to (VDD + 0.3V) GND 3 46 D11 + LTC1749CFW A 4 45 D10 Digital Output Voltage ... – 0.3V to (V IN DD + 0.3V) A – 5 44 IN D9 LTC1749IFW OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 DD D8 Power Dissipation .. 2000mW V 8 41 DD D7 GND 9 40 D6 Operating Temperature Range REFLB 10 39 D5 LTC1749C ... 0°C to 70°C REFHA 11 38 OGND GND 12 37 GND LTC1749I .. – 40°C to 85°C GND 13 36 GND Storage Temperature Range ... – 65°C to 150°C REFLA 14 35 D4 REFHB 15 34 D3 Lead Temperature (Soldering, 10 sec).. 300°C GND 16 33 D2 V 17 32 DD OVDD V 18 31 DD D1 GND 19 30 D0 V 20 29 DD NC GND 21 28 NC MSBINV 22 27 OGND ENC 23 26 CLKOUT ENC 24 25 PGA 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) ● 12 Bits Integral Linearity Error (Note 6) – 1.0 ±0.4 1.0 LSB ● –1.5 1.5 LSB Differential Linearity Error ● –0.8 ±0.2 0.8 LSB Offset Error (Note 7) External Reference (VSENSE = 1.125V, PGA = 0) –35 ±8 35 mV Gain Error External Reference (VSENSE = 1.125V, PGA = 0) –3.5 ±1 3.5 %FS Full-Scale Tempco Internal Reference ±40 ppm/°C External Reference (VSENSE = 1.125V) ±20 ppm/°C Offset Tempco ±20 µV/°C Input Referred Noise (Transition Noise) VSENSE = 1.125V, PGA = 0 0.23 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 ● ±0.7 to ±1.125 V I + – IN Analog Input Leakage Current 0 < AIN , AIN < VDD ● –1 1 µA CIN Analog Input Capacitance Sample Mode ENC < ENC 6.9 pF Hold Mode ENC > ENC 2.4 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 1749f 2