Datasheet LTC1745 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Low Noise,12-Bit, 25Msps ADC |
| Seiten / Seite | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, … |
| Dateiformat / Größe | PDF / 214 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE MAXIMUM RATINGS. PACKAGE/ORDER INFORMATION. OVDD = VDD (Notes 1, 2). CO VERTER CHARACTERISTICS The
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LTC1745
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 + LTC1745CFW A 4 45 D10 Digital Output Voltage ... – 0.3V to (V IN DD + 0.3V) A – 5 44 IN D9 LTC1745IFW OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 DD D8 Power Dissipation .. 2000mW V 8 41 DD D7 Operating Temperature Range GND 9 40 D6 REFLB 10 39 D5 LTC1745C ... 0°C to 70°C REFHA 11 38 OGND GND 12 37 GND LTC1745I .. – 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 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) ● 12 Bits Integral Linearity Error (Note 6) ● – 1 ±0.4 1 LSB Differential Linearity Error ● –0.75 ±0.2 0.75 LSB Offset Error (Note 7) ● – 30 ±5 30 mV Gain Error External Reference (SENSE = 1.6V) ● – 2.5 ±1 2.5 %FS Full-Scale Tempco IOUT(REF) = 0 ±40 ppm/°C
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 IIN Analog Input Leakage Current ● –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 ● 15 18 ns tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.3 psRMS CMRR Analog Input Common Mode Rejection Ratio 1.0V < (A – + IN = AIN ) < 3.5V 80 dB 1745f 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 + LTC1745CFW A 4 45 D10 Digital Output Voltage ... – 0.3V to (V IN DD + 0.3V) A – 5 44 IN D9 LTC1745IFW OGND Voltage .. – 0.3V to 1V GND 6 43 OVDD V 7 42 DD D8 Power Dissipation .. 2000mW V 8 41 DD D7 Operating Temperature Range GND 9 40 D6 REFLB 10 39 D5 LTC1745C ... 0°C to 70°C REFHA 11 38 OGND GND 12 37 GND LTC1745I .. – 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 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) ● 12 Bits Integral Linearity Error (Note 6) ● – 1 ±0.4 1 LSB Differential Linearity Error ● –0.75 ±0.2 0.75 LSB Offset Error (Note 7) ● – 30 ±5 30 mV Gain Error External Reference (SENSE = 1.6V) ● – 2.5 ±1 2.5 %FS Full-Scale Tempco IOUT(REF) = 0 ±40 ppm/°C
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 IIN Analog Input Leakage Current ● –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 ● 15 18 ns tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.3 psRMS CMRR Analog Input Common Mode Rejection Ratio 1.0V < (A – + IN = AIN ) < 3.5V 80 dB 1745f 2