Datasheet LTC1286, LTC1298 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Micropower Sampling 12-Bit A/D Converters In S0-8 Packages |
| 页数 / 页 | 24 / 3 — CONVERTER AND MULTIPLEXER CHARACTERISTICS (Note 5). LTC1286. LTC1298. … |
| 文件格式/大小 | PDF / 299 Kb |
| 文件语言 | 英语 |
CONVERTER AND MULTIPLEXER CHARACTERISTICS (Note 5). LTC1286. LTC1298. PARAMETER. CONDITIONS. MIN. TYP. MAX. UNITS
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LTC1286/LTC1298
U U W CONVERTER AND MULTIPLEXER CHARACTERISTICS (Note 5) LTC1286 LTC1298 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 12 Bits Integral Linearity Error (Note 6) ● ±3/4 ±2 ±3/4 ±2 LSB Differential Linearity Error ● ±1/4 ±3/4 ±1/4 ±3/4 LSB Offset Error ● 3/4 ±3 3/4 ±3 LSB Gain Error ● ±2 ±8 ±2 ±8 LSB Analog Input Range (Note 7 and 8) ● –0.05V to VCC + 0.05V V REF Input Range (LTC1286) 4.5 ≤ V 1.5V to V CC ≤ 5.5V CC + 0.05V V (Notes 7, 8, and 9) 5.5V < V 1.5V to 5.55V CC ≤ 9V V Analog Input Leakage Current (Note 10) ● ±1 ±1 µA
U DIGITAL AND DC ELECTRICAL CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage VCC = 5.25V ● 2 V VIL Low Level Input Voltage VCC = 4.75V ● 0.8 V IIH High Level Input Current VIN = VCC ● 2.5 µA IIL Low Level Input Current VIN = 0V ● – 2.5 µA VOH High Level Output Voltage VCC = 4.75V, IO = 10µA ● 4.0 4.64 V VCC = 4.75V, IO = 360µA ● 2.4 4.62 V VOL Low Level Output Voltage VCC = 4.75V, IO = 1.6mA ● 0.4 V IOZ Hi-Z Output Leakage CS = High ● ±3 µA ISOURCE Output Source Current VOUT = 0V – 25 mA ISINK Output Sink Current VOUT = VCC 45 mA RREF Reference Input Resistance CS = VCC 5000 MΩ (LTC1286) CS = GND 55 kΩ IREF Reference Current (LTC1286) CS = VCC ● 0.001 2.5 µA tCYC ≥ 640µs, fCLK ≤ 25kHz ● 90 140 µA tCYC = 80µs, fCLK = 200kHz ● 90 140 µA ICC Supply Current CS = VCC ● 0.001 ±3.0 µA LTC1286, tCYC ≥ 640µs, fCLK ≤ 25kHz ● 220 460 µA LTC1286, tCYC = 80µs, fCLK = 200kHz ● 260 500 µA LTC1298, tCYC ≥ 720µs, fCLK ≤ 25kHz ● 320 600 µA LTC1298, tCYC = 90µs, fCLK = 200kHz ● 360 640 µA
U W DYNAMIC ACCURACY fSMPL = 12.5kHz (LTC1286), fSMPL = 11.1kHz (LTC1298) (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N +D) Signal-to-Noise Plus Distortion Ratio 1kHz/7kHz Input Signal 71/68 dB THD Total Harmonic Distortion (Up to 5th Harmonic) 1kHz/7kHz Input Signal – 84/–80 dB SFDR Spurious-Free Dynamic Range 1kHz/7kHz Input Signal 90/86 dB Peak Harmonic or Spurious Noise 1kHz/7kHz Input Signal – 90/–86 dB 3
U U W CONVERTER AND MULTIPLEXER CHARACTERISTICS (Note 5) LTC1286 LTC1298 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 12 Bits Integral Linearity Error (Note 6) ● ±3/4 ±2 ±3/4 ±2 LSB Differential Linearity Error ● ±1/4 ±3/4 ±1/4 ±3/4 LSB Offset Error ● 3/4 ±3 3/4 ±3 LSB Gain Error ● ±2 ±8 ±2 ±8 LSB Analog Input Range (Note 7 and 8) ● –0.05V to VCC + 0.05V V REF Input Range (LTC1286) 4.5 ≤ V 1.5V to V CC ≤ 5.5V CC + 0.05V V (Notes 7, 8, and 9) 5.5V < V 1.5V to 5.55V CC ≤ 9V V Analog Input Leakage Current (Note 10) ● ±1 ±1 µA
U DIGITAL AND DC ELECTRICAL CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage VCC = 5.25V ● 2 V VIL Low Level Input Voltage VCC = 4.75V ● 0.8 V IIH High Level Input Current VIN = VCC ● 2.5 µA IIL Low Level Input Current VIN = 0V ● – 2.5 µA VOH High Level Output Voltage VCC = 4.75V, IO = 10µA ● 4.0 4.64 V VCC = 4.75V, IO = 360µA ● 2.4 4.62 V VOL Low Level Output Voltage VCC = 4.75V, IO = 1.6mA ● 0.4 V IOZ Hi-Z Output Leakage CS = High ● ±3 µA ISOURCE Output Source Current VOUT = 0V – 25 mA ISINK Output Sink Current VOUT = VCC 45 mA RREF Reference Input Resistance CS = VCC 5000 MΩ (LTC1286) CS = GND 55 kΩ IREF Reference Current (LTC1286) CS = VCC ● 0.001 2.5 µA tCYC ≥ 640µs, fCLK ≤ 25kHz ● 90 140 µA tCYC = 80µs, fCLK = 200kHz ● 90 140 µA ICC Supply Current CS = VCC ● 0.001 ±3.0 µA LTC1286, tCYC ≥ 640µs, fCLK ≤ 25kHz ● 220 460 µA LTC1286, tCYC = 80µs, fCLK = 200kHz ● 260 500 µA LTC1298, tCYC ≥ 720µs, fCLK ≤ 25kHz ● 320 600 µA LTC1298, tCYC = 90µs, fCLK = 200kHz ● 360 640 µA
U W DYNAMIC ACCURACY fSMPL = 12.5kHz (LTC1286), fSMPL = 11.1kHz (LTC1298) (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N +D) Signal-to-Noise Plus Distortion Ratio 1kHz/7kHz Input Signal 71/68 dB THD Total Harmonic Distortion (Up to 5th Harmonic) 1kHz/7kHz Input Signal – 84/–80 dB SFDR Spurious-Free Dynamic Range 1kHz/7kHz Input Signal 90/86 dB Peak Harmonic or Spurious Noise 1kHz/7kHz Input Signal – 90/–86 dB 3