Datasheet LTC2351-14 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 6 Channel, 14-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 / 244 Kb |
| Document Language | English |
ANALOG INPUT. The. denotes the specifi cations which apply over the full operating temperature range,
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Text Version of Document
LTC2351-14
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 0 to VDD V Input Range (Note 8) 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 100kHz Input Signal l 71 75 dB Distortion Ratio 300kHz Input Signal 75 dB 100kHz Input Signal (LTC2351H-14) l 70 75 dB THD Total Harmonic 100kHz First 5 Harmonics l –80 –90 dB Distortion 300kHz First 5 Harmonics –86 dB 100kHz First 5 Harmonics (LTC2351H-14) l –79 –89 dB SFDR Spurious Free 100kHz Input Signal 90 dB Dynamic Range 300kHz Input Signal 86 dB IMD Intermodulation 0.625VP-P, 833kHz into CH0+, 0.625VP-P, 841kHz into CH0– –80 dB Distortion Bipolar Mode. Also Applicable to Other Channels Code-to-Code VREF = 2.5V (Note 17) 0.7 LSBRMS Transition Noise 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
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage VDD = 3.3V l 2.4 V VIL Low Level Input Voltage VDD = 2.7V l 0.6 V 235114fb 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 0 to VDD V Input Range (Note 8) 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 100kHz Input Signal l 71 75 dB Distortion Ratio 300kHz Input Signal 75 dB 100kHz Input Signal (LTC2351H-14) l 70 75 dB THD Total Harmonic 100kHz First 5 Harmonics l –80 –90 dB Distortion 300kHz First 5 Harmonics –86 dB 100kHz First 5 Harmonics (LTC2351H-14) l –79 –89 dB SFDR Spurious Free 100kHz Input Signal 90 dB Dynamic Range 300kHz Input Signal 86 dB IMD Intermodulation 0.625VP-P, 833kHz into CH0+, 0.625VP-P, 841kHz into CH0– –80 dB Distortion Bipolar Mode. Also Applicable to Other Channels Code-to-Code VREF = 2.5V (Note 17) 0.7 LSBRMS Transition Noise 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
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VDD = VCC = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage VDD = 3.3V l 2.4 V VIL Low Level Input Voltage VDD = 2.7V l 0.6 V 235114fb 3
