Datasheet LTC2389-18 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 18-Bit, 2.5Msps SAR ADC with Pin-Configurable Analog Input Range and 99.8dB SNR |
| 页数 / 页 | 40 / 4 — Dynamic accuracy The. denotes the specifications which apply over the … |
| 文件格式/大小 | PDF / 930 Kb |
| 文件语言 | 英语 |
Dynamic accuracy The. denotes the specifications which apply over the full operating temperature range,
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LTC2389-18
Dynamic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS (Notes 4, 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Fully Differential, fIN = 2kHz l 97.3 99.7 dB Distortion) Ratio Pseudo-Differential Unipolar, fIN = 2kHz l 92.2 94.5 dB Pseudo-Differential Bipolar, fIN = 2kHz l 92.7 95.1 dB Fully Differential, fIN = 2kHz (H-Grade) l 96.6 99.7 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 92.0 94.5 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 92.5 95.1 dB SNR Signal-to-Noise Ratio Fully Differential, fIN = 2kHz l 98.1 99.8 dB Pseudo-Differential Unipolar, fIN = 2kHz l 92.7 94.6 dB Pseudo-Differential Bipolar, fIN = 2kHz l 93.3 95.2 dB Fully Differential, fIN = 2kHz (H-Grade) l 97.7 99.8 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 92.5 94.6 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 93.1 95.2 dB THD Total Harmonic Fully Differential, fIN = 2kHz, First 5 Harmonics l –116 –105 dB Distortion Pseudo-Differential Unipolar, fIN = 2kHz, First 5 Harmonics l –112 –102 dB Pseudo-Differential Bipolar, fIN = 2kHz, First 5 Harmonics l –111 –102 dB Fully Differential, fIN = 2kHz, First 5 Harmonics (H-Grade) l –116 –103 dB Pseudo-Differential Unipolar, fIN = 2kHz, First 5 Harmonics (H-Grade) l –112 –102 dB Pseudo-Differential Bipolar, fIN = 2kHz, First 5 Harmonics (H-Grade) l –111 –102 dB SFDR Spurious-Free Fully Differential, fIN = 2kHz l 106 117 dB Dynamic Range Pseudo-Differential Unipolar, fIN = 2kHz l 102 113 dB Pseudo-Differential Bipolar, fIN = 2kHz l 102 112 dB Fully Differential, fIN = 2kHz (H-Grade) l 104 117 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 102 113 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 102 112 dB –3dB Input Bandwidth 50 MHz Aperture Delay 0.5 ns Aperture Jitter 1 psRMS Transient Response Full-Scale Step 70 ns
reFerence characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFOUT Internal Reference Voltage REFOUT Tied to REFIN, IOUT = 0µA 4.076 4.096 4.116 V VREFOUT Tempco IOUT = 0µA (Note 9) l ±10 ±20 ppm/°C REFOUT Output Impedance –0.1mA ≤ IOUT ≤ 0.1mA 2.3 kΩ REFOUT Line Regulation VDD = 4.75V to 5.25V 0.3 mV/V VREF Converter REFIN Voltage 4.076 4.096 4.116 V REFIN Input Impedance 74 kΩ VCM Output Voltage IOUT = 0µA 2.08 V 238918f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Analog Input Converter Characteristics Dynamic Accuracy Reference Characteristics Digital Inputs And Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Typical Application Related Parts
Dynamic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS (Notes 4, 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Fully Differential, fIN = 2kHz l 97.3 99.7 dB Distortion) Ratio Pseudo-Differential Unipolar, fIN = 2kHz l 92.2 94.5 dB Pseudo-Differential Bipolar, fIN = 2kHz l 92.7 95.1 dB Fully Differential, fIN = 2kHz (H-Grade) l 96.6 99.7 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 92.0 94.5 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 92.5 95.1 dB SNR Signal-to-Noise Ratio Fully Differential, fIN = 2kHz l 98.1 99.8 dB Pseudo-Differential Unipolar, fIN = 2kHz l 92.7 94.6 dB Pseudo-Differential Bipolar, fIN = 2kHz l 93.3 95.2 dB Fully Differential, fIN = 2kHz (H-Grade) l 97.7 99.8 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 92.5 94.6 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 93.1 95.2 dB THD Total Harmonic Fully Differential, fIN = 2kHz, First 5 Harmonics l –116 –105 dB Distortion Pseudo-Differential Unipolar, fIN = 2kHz, First 5 Harmonics l –112 –102 dB Pseudo-Differential Bipolar, fIN = 2kHz, First 5 Harmonics l –111 –102 dB Fully Differential, fIN = 2kHz, First 5 Harmonics (H-Grade) l –116 –103 dB Pseudo-Differential Unipolar, fIN = 2kHz, First 5 Harmonics (H-Grade) l –112 –102 dB Pseudo-Differential Bipolar, fIN = 2kHz, First 5 Harmonics (H-Grade) l –111 –102 dB SFDR Spurious-Free Fully Differential, fIN = 2kHz l 106 117 dB Dynamic Range Pseudo-Differential Unipolar, fIN = 2kHz l 102 113 dB Pseudo-Differential Bipolar, fIN = 2kHz l 102 112 dB Fully Differential, fIN = 2kHz (H-Grade) l 104 117 dB Pseudo-Differential Unipolar, fIN = 2kHz (H-Grade) l 102 113 dB Pseudo-Differential Bipolar, fIN = 2kHz (H-Grade) l 102 112 dB –3dB Input Bandwidth 50 MHz Aperture Delay 0.5 ns Aperture Jitter 1 psRMS Transient Response Full-Scale Step 70 ns
reFerence characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFOUT Internal Reference Voltage REFOUT Tied to REFIN, IOUT = 0µA 4.076 4.096 4.116 V VREFOUT Tempco IOUT = 0µA (Note 9) l ±10 ±20 ppm/°C REFOUT Output Impedance –0.1mA ≤ IOUT ≤ 0.1mA 2.3 kΩ REFOUT Line Regulation VDD = 4.75V to 5.25V 0.3 mV/V VREF Converter REFIN Voltage 4.076 4.096 4.116 V REFIN Input Impedance 74 kΩ VCM Output Voltage IOUT = 0µA 2.08 V 238918f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Analog Input Converter Characteristics Dynamic Accuracy Reference Characteristics Digital Inputs And Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Typical Application Related Parts