Datasheet LTC2411, LTC2411-1 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 24-Bit No Latency ∆Σ™ ADC with Differential Input and Reference in MSOP |
| 页数 / 页 | 42 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 598 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC2411/LTC2411-1
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Negative Full-Scale Error Drift 2.5V ≤ REF+ ≤ VCC, REF– = GND, 0.04 ppm of VREF/°C IN+ = 0.25 • REF+, IN– = 0.75 • REF+ Total Unadjusted Error 4.5V ≤ VCC ≤ 5.5V, REF+ = 2.5V, REF– = GND, VINCM = 1.25V 3 ppm of VREF 5V ≤ VCC ≤ 5.5V, REF+ = 5V, REF– = GND, VINCM = 2.5V 3 ppm of VREF REF+ = 2.5V, REF– = GND, VINCM = 1.25V 6 ppm of VREF Output Noise 5V ≤ V – CC ≤ 5.5V, REF+ = 5V, VREF = GND, 1.45 µVRMS GND ≤ IN– = IN+ ≤ 5V, (Note 13)
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 130 140 dB GND ≤ IN– = IN+ ≤ 5V Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 60Hz ±2% (LTC2411) GND ≤ IN– = IN+ ≤ 5V, (Note 7) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 50Hz ±2% (LTC2411) GND ≤ IN– = IN+ ≤ 5V, (Note 8) Input Common Mode Rejection 2.5V < REF+ < VCC, REF– = GND, l 140 dB 49Hz to 61.2Hz (LTC2411-1) GND < IN– = IN+ < VCC (Note 15) Input Normal Mode Rejection (Note 7) l 110 140 dB 60Hz ±2% (LTC2411) Input Normal Mode Rejection (Note 8) l 110 140 dB 50Hz ±2% (LTC2411) Input Normal Mode Rejection (Note 15) l 87 dB 49Hz to 61.2Hz (LTC2411-1) Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, l 130 140 dB Rejection DC VREF = 2.5V, IN– = IN+ = GND Power Supply Rejection, DC REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 110 dB Power Supply Rejection, 60Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7) 120 dB (LTC2411) Power Supply Rejection, 50Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8) 120 dB (LTC2411) Power Supply Rejection, REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 15) 120 dB 49Hz to 61.2Hz (LTC2411-1)
ANALOG INPUT AND REFERENCE The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3V VCC + 0.3V V IN– Absolute/Common Mode IN– Voltage l GND – 0.3V VCC + 0.3V V VIN Input Differential Voltage Range l –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1V V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) 2411fa For more information www.linear.com/LTC2411 3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Negative Full-Scale Error Drift 2.5V ≤ REF+ ≤ VCC, REF– = GND, 0.04 ppm of VREF/°C IN+ = 0.25 • REF+, IN– = 0.75 • REF+ Total Unadjusted Error 4.5V ≤ VCC ≤ 5.5V, REF+ = 2.5V, REF– = GND, VINCM = 1.25V 3 ppm of VREF 5V ≤ VCC ≤ 5.5V, REF+ = 5V, REF– = GND, VINCM = 2.5V 3 ppm of VREF REF+ = 2.5V, REF– = GND, VINCM = 1.25V 6 ppm of VREF Output Noise 5V ≤ V – CC ≤ 5.5V, REF+ = 5V, VREF = GND, 1.45 µVRMS GND ≤ IN– = IN+ ≤ 5V, (Note 13)
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 130 140 dB GND ≤ IN– = IN+ ≤ 5V Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 60Hz ±2% (LTC2411) GND ≤ IN– = IN+ ≤ 5V, (Note 7) Input Common Mode Rejection 2.5V ≤ REF+ ≤ VCC, REF– = GND, l 140 dB 50Hz ±2% (LTC2411) GND ≤ IN– = IN+ ≤ 5V, (Note 8) Input Common Mode Rejection 2.5V < REF+ < VCC, REF– = GND, l 140 dB 49Hz to 61.2Hz (LTC2411-1) GND < IN– = IN+ < VCC (Note 15) Input Normal Mode Rejection (Note 7) l 110 140 dB 60Hz ±2% (LTC2411) Input Normal Mode Rejection (Note 8) l 110 140 dB 50Hz ±2% (LTC2411) Input Normal Mode Rejection (Note 15) l 87 dB 49Hz to 61.2Hz (LTC2411-1) Reference Common Mode 2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V, l 130 140 dB Rejection DC VREF = 2.5V, IN– = IN+ = GND Power Supply Rejection, DC REF+ = 2.5V, REF– = GND, IN– = IN+ = GND 110 dB Power Supply Rejection, 60Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7) 120 dB (LTC2411) Power Supply Rejection, 50Hz ±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8) 120 dB (LTC2411) Power Supply Rejection, REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 15) 120 dB 49Hz to 61.2Hz (LTC2411-1)
ANALOG INPUT AND REFERENCE The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IN+ Absolute/Common Mode IN+ Voltage l GND – 0.3V VCC + 0.3V V IN– Absolute/Common Mode IN– Voltage l GND – 0.3V VCC + 0.3V V VIN Input Differential Voltage Range l –VREF/2 VREF/2 V (IN+ – IN–) REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND VCC – 0.1V V VREF Reference Differential Voltage Range l 0.1 VCC V (REF+ – REF–) 2411fa For more information www.linear.com/LTC2411 3