Datasheet LTC2351-12 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 6 Channel, 12-Bit, 1.5Msps Simultaneous Sampling ADC with Shutdown |
| Pages / Page | 20 / 3 — ANALOG INPUT. The. denotes the specifi cations which apply over the full … |
| File Format / Size | PDF / 235 Kb |
| Document Language | English |
ANALOG INPUT. The. denotes the specifi cations which apply over the full operating temperature range,
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LTC2351-12
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Differential Input Range (Notes 3, 8, 9) 2.7V ≤ VDD ≤ 3.6V, Unipolar 0 to 2.5 V 2.7V ≤ VDD ≤ 3.6V, Bipolar ±1.25 V VCM Analog Common Mode + Differential Input Range (Note 8) 0 to VDD V IIN Analog Input Leakage Current l 1 μA CIN Analog Input Capacitance 13 pF tACQ Sample-and-Hold Acquisition Time (Note 6) l 39 ns tAP Sample-and-Hold Aperture Delay Time 1 ns tJITTER Sample-and-Hold Aperture Delay Time Jitter 0.3 ps tSK Channel to Channel Aperture Skew 200 ps CMRR Analog Input Common Mode Rejection Ratio fIN = 100kHz, VIN = 0V to 3V –83 dB fIN = 10MHz, VIN = 0V to 3V –67 dB
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-Noise Plus Distortion Ratio 100kHz Input Signal l 69 72 dB 300kHz Input Signal 71 dB 100kHz Input Signal (LTC2351H-12) l 68 72 dB THD Total Harmonic Distortion 100kHz First 5 Harmonics l –80 –90 dB 300kHz First 5 Harmonics –85 dB 100kHz First 5 Harmonics (LTC2351H-12) l –79 –89 dB SFDR Spurious Free Dynamic Range 100kHz Input Signal 90 dB 300kHz Input Signal 85 dB IMD Intermodulation Distortion 0.625VP-P, 833kHz into CH0+, 0.625VP-P, 841kHz into CH0– –80 dB Bipolar Mode. Also Applicable to Other Channels Code-to-Code Transition Noise VREF = 2.5V (Note 17) 0.2 LSBRMS Full Power Bandwidth VIN = 2.5VP-P, SDO = 11585LSBP-P (–3dBFS) (Note 15) 50 MHz Full Linear Bandwidth S/(N + D) ≥ 68dB, Bipolar Differential Input 5 MHz
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. VDD = VCC = 3V. PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 2.5 V VREF Output Tempco 15 ppm/°C VREF Line Regulation VDD = 2.7V to 3.6V, VREF = 2.5V 600 μV/V VREF Output Resistance Load Current = 0.5mA 0.2 Ω VREF Settling Time Ext CREF = 10μF 2 ms External VREF Input Range 2.55 VDD V 235112fa 3
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Differential Input Range (Notes 3, 8, 9) 2.7V ≤ VDD ≤ 3.6V, Unipolar 0 to 2.5 V 2.7V ≤ VDD ≤ 3.6V, Bipolar ±1.25 V VCM Analog Common Mode + Differential Input Range (Note 8) 0 to VDD V IIN Analog Input Leakage Current l 1 μA CIN Analog Input Capacitance 13 pF tACQ Sample-and-Hold Acquisition Time (Note 6) l 39 ns tAP Sample-and-Hold Aperture Delay Time 1 ns tJITTER Sample-and-Hold Aperture Delay Time Jitter 0.3 ps tSK Channel to Channel Aperture Skew 200 ps CMRR Analog Input Common Mode Rejection Ratio fIN = 100kHz, VIN = 0V to 3V –83 dB fIN = 10MHz, VIN = 0V to 3V –67 dB
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-Noise Plus Distortion Ratio 100kHz Input Signal l 69 72 dB 300kHz Input Signal 71 dB 100kHz Input Signal (LTC2351H-12) l 68 72 dB THD Total Harmonic Distortion 100kHz First 5 Harmonics l –80 –90 dB 300kHz First 5 Harmonics –85 dB 100kHz First 5 Harmonics (LTC2351H-12) l –79 –89 dB SFDR Spurious Free Dynamic Range 100kHz Input Signal 90 dB 300kHz Input Signal 85 dB IMD Intermodulation Distortion 0.625VP-P, 833kHz into CH0+, 0.625VP-P, 841kHz into CH0– –80 dB Bipolar Mode. Also Applicable to Other Channels Code-to-Code Transition Noise VREF = 2.5V (Note 17) 0.2 LSBRMS Full Power Bandwidth VIN = 2.5VP-P, SDO = 11585LSBP-P (–3dBFS) (Note 15) 50 MHz Full Linear Bandwidth S/(N + D) ≥ 68dB, Bipolar Differential Input 5 MHz
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. VDD = VCC = 3V. PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 2.5 V VREF Output Tempco 15 ppm/°C VREF Line Regulation VDD = 2.7V to 3.6V, VREF = 2.5V 600 μV/V VREF Output Resistance Load Current = 0.5mA 0.2 Ω VREF Settling Time Ext CREF = 10μF 2 ms External VREF Input Range 2.55 VDD V 235112fa 3
