Datasheet LTC2391-16 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 16-Bit, 250ksps SAR ADC with 94dB SNR |
| Pages / Page | 24 / 3 — ANALOG INPUT. The. denotes the specifi cations which apply over the full … |
| File Format / Size | PDF / 229 Kb |
| Document Language | English |
ANALOG INPUT. The. denotes the specifi cations which apply over the full operating temperature range, otherwise
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Text Version of Document
LTC2391-16
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Absolute Input Range (IN+) (Note 5) l –0.05 AVP V V – IN Absolute Input Range (IN–) (Note 5) l –0.05 AVP V V + – + – IN – VIN Input Differential Voltage Range VIN = VIN – VIN l –VREF VREF V VCM Common Mode Input Range l VREF/2 – 0.05 VREF/2 VREF/2 + 0.05 V IIN Analog Input Leakage Current l ±1 μA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio 70 dB
CONVERTER CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution l 16 Bits No Missing Codes l 16 Bits Transition Noise 0.3 LSBRMS INL Integral Linearity Error (Note 6) l –2 ±1 2 LSB DNL Differential Linearity Error l –1 1 LSB BZE Bipolar Zero Error (Note 7) l –7 7 LSB Bipolar Zero Error Drift 1 ppm/°C FSE Bipolar Full-Scale Error External Reference l 0.14 % Internal Reference (Note 7) 0.1 % Bipolar Full-Scale Error Drift ±10 ppm/°C
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS (Notes 4, 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 20kHz l 90.5 93.5 dB SNR Signal-to-Noise Ratio fIN = 20kHz l 91 94 dB THD Total Harmonic Distortion fIN = 20kHz, First 5 Harmonics l –103 –94 dB SFDR Spurious-Free Dynamic Range fIN = 20kHz 104 dB –3dB Input Bandwidth 50 MHz Aperture Delay 0.5 ns Aperture Jitter 7 psRMS Transient Response Full-Scale Step 60 ns 239116fa 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. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + IN Absolute Input Range (IN+) (Note 5) l –0.05 AVP V V – IN Absolute Input Range (IN–) (Note 5) l –0.05 AVP V V + – + – IN – VIN Input Differential Voltage Range VIN = VIN – VIN l –VREF VREF V VCM Common Mode Input Range l VREF/2 – 0.05 VREF/2 VREF/2 + 0.05 V IIN Analog Input Leakage Current l ±1 μA CIN Analog Input Capacitance Sample Mode 45 pF Hold Mode 5 pF CMRR Input Common Mode Rejection Ratio 70 dB
CONVERTER CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution l 16 Bits No Missing Codes l 16 Bits Transition Noise 0.3 LSBRMS INL Integral Linearity Error (Note 6) l –2 ±1 2 LSB DNL Differential Linearity Error l –1 1 LSB BZE Bipolar Zero Error (Note 7) l –7 7 LSB Bipolar Zero Error Drift 1 ppm/°C FSE Bipolar Full-Scale Error External Reference l 0.14 % Internal Reference (Note 7) 0.1 % Bipolar Full-Scale Error Drift ±10 ppm/°C
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS (Notes 4, 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio fIN = 20kHz l 90.5 93.5 dB SNR Signal-to-Noise Ratio fIN = 20kHz l 91 94 dB THD Total Harmonic Distortion fIN = 20kHz, First 5 Harmonics l –103 –94 dB SFDR Spurious-Free Dynamic Range fIN = 20kHz 104 dB –3dB Input Bandwidth 50 MHz Aperture Delay 0.5 ns Aperture Jitter 7 psRMS Transient Response Full-Scale Step 60 ns 239116fa 3
