Datasheet LTC2215, LTC2215 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 16-Bit, 65Msps Low Noise ADC |
| Pages / Page | 36 / 5 — COMMON MODE BIAS CHARACTERISTICS The. denotes the specifi cations which … |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
COMMON MODE BIAS CHARACTERISTICS The. denotes the specifi cations which apply over the
Model Line for this Datasheet
Text Version of Document
LTC2216/LTC2215
COMMON MODE BIAS 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) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 l 1.475 1.575 1.675 V VCM Output Tempco IOUT = 0 ±60 ppm/°C VCM Line Regulation 3.135V ≤ VDD ≤ 3.465V 2.4 mV/ V VCM Output Resistance | IOUT | ≤ 0.8mA 1.1 Ω
The DIGITAL INPUTS AND DIGITAL OUTPUTS
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 Encode Inputs (ENC+, ENC–)
VID Differential Input Voltage (Note 7) l 0.2 V VICM Common Mode Input Voltage Internally Set 1.6 V Externally Set (Note 7) 1.2 3 V RIN Input Resistance (See Figure 2) 6 kΩ CIN Input Capacitance (Note 7) 3 pF
Logic Inputs
VIH High Level Input Voltage VDD = 3.3V l 2 V VIL Low Level Input Voltage VDD = 3.3V l 0.8 V IIN Digital Input Current VIN = 0V to VDD l ±10 μA CIN Digital Input Capacitance (Note 7) 1.5 pF
LOGIC OUTPUTS (CMOS MODE) OVDD = 3.3V
VOH High Level Output Voltage VDD = 3.3V IO = –10μA 3.299 V IO = –200μA l 3.1 3.29 V VOL Low Level Output Voltage VDD = 3.3V IO = 160μA 0.01 V IO = 1.6mA l 0.10 0.4 V ISOURCE Output Source Current VOUT = 0V –50 mA ISINK Output Sink Current VOUT = 3.3V 50 mA
OVDD = 2.5V
VOH High Level Output Voltage VDD = 3.3V IO = –200μA 2.49 V VOL Low Level Output Voltage VDD = 3.3V IO = 1.60mA 0.1 V
OVDD = 1.8V
VOH High Level Output Voltage VDD = 3.3V IO = –200μA 1.79 V VOL Low Level Output Voltage VDD = 3.3V IO = 1.60mA 0.1 V
LOGIC OUTPUTS (LVDS MODE) STANDARD LVDS
VOD Differential Output Voltage 100Ω Differential Load l 247 350 454 mV VOS Output Common Mode Voltage 100Ω Differential Load l 1.125 1.2 1.375 V
Low Power LVDS
VOD Differential Output Voltage 100Ω Differential Load l 125 175 250 mV VOS Output Common Mode Voltage 100Ω Differential Load l 1.125 1.2 1.375 V 22165f 5
COMMON MODE BIAS 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) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 l 1.475 1.575 1.675 V VCM Output Tempco IOUT = 0 ±60 ppm/°C VCM Line Regulation 3.135V ≤ VDD ≤ 3.465V 2.4 mV/ V VCM Output Resistance | IOUT | ≤ 0.8mA 1.1 Ω
The DIGITAL INPUTS AND DIGITAL OUTPUTS
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 Encode Inputs (ENC+, ENC–)
VID Differential Input Voltage (Note 7) l 0.2 V VICM Common Mode Input Voltage Internally Set 1.6 V Externally Set (Note 7) 1.2 3 V RIN Input Resistance (See Figure 2) 6 kΩ CIN Input Capacitance (Note 7) 3 pF
Logic Inputs
VIH High Level Input Voltage VDD = 3.3V l 2 V VIL Low Level Input Voltage VDD = 3.3V l 0.8 V IIN Digital Input Current VIN = 0V to VDD l ±10 μA CIN Digital Input Capacitance (Note 7) 1.5 pF
LOGIC OUTPUTS (CMOS MODE) OVDD = 3.3V
VOH High Level Output Voltage VDD = 3.3V IO = –10μA 3.299 V IO = –200μA l 3.1 3.29 V VOL Low Level Output Voltage VDD = 3.3V IO = 160μA 0.01 V IO = 1.6mA l 0.10 0.4 V ISOURCE Output Source Current VOUT = 0V –50 mA ISINK Output Sink Current VOUT = 3.3V 50 mA
OVDD = 2.5V
VOH High Level Output Voltage VDD = 3.3V IO = –200μA 2.49 V VOL Low Level Output Voltage VDD = 3.3V IO = 1.60mA 0.1 V
OVDD = 1.8V
VOH High Level Output Voltage VDD = 3.3V IO = –200μA 1.79 V VOL Low Level Output Voltage VDD = 3.3V IO = 1.60mA 0.1 V
LOGIC OUTPUTS (LVDS MODE) STANDARD LVDS
VOD Differential Output Voltage 100Ω Differential Load l 247 350 454 mV VOS Output Common Mode Voltage 100Ω Differential Load l 1.125 1.2 1.375 V
Low Power LVDS
VOD Differential Output Voltage 100Ω Differential Load l 125 175 250 mV VOS Output Common Mode Voltage 100Ω Differential Load l 1.125 1.2 1.375 V 22165f 5
