Datasheet LTC2153-14 (Analog Devices) - 8
| Fabricante | Analog Devices |
| Descripción | 14-Bit 310Msps ADC |
| Páginas / Página | 26 / 8 — Typical perForMance characTerisTics. LTC2153-14: IOVDD vs Sample Rate,. … |
| Formato / tamaño de archivo | PDF / 837 Kb |
| Idioma del documento | Inglés |
Typical perForMance characTerisTics. LTC2153-14: IOVDD vs Sample Rate,. LTC2153-14: IVDD vs Sample Rate,
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LTC2153-14
Typical perForMance characTerisTics LTC2153-14: IOVDD vs Sample Rate, LTC2153-14: IVDD vs Sample Rate, 15MHz Sine Wave Input, –1dBFS 15MHz Sine Wave Input, –1dBFS LTC2153-14: Frequency Response
60 200 –0.5 55 190 –1.0 50 LVDS CURRENT 180 –1.5 3.5mA 45 –2.0 170 (mA) 40 (mA) –2.5 I VDD 160 I OVDD 35 –3.0 LVDS CURRENT 150 30 1.75mA INPUT AMPLITUDE (dBFS) –3.5 140 25 –4.0 20 130 –4.5 0 50 100 150 200 250 300 0 62 124 186 248 310 100 1000 SAMPLE RATE (Msps) SAMPLE RATE (Msps) INPUT FREQUENCY (MHz) 215314 G18 215314 G19 215314 G20
pin FuncTions VDD (Pins 1, 2):
1.8V Analog Power Supply. Bypass to
VREF (Pin 8):
Reference Voltage Output. Bypass to ground ground with 0.1µF ceramic capacitor. Pins 1, 2 can share with a 2.2µF ceramic capacitor. Nominally 1.25V. a bypass capacitor.
VCM (Pin 9):
Common Mode Bias Output; nominally equal
GND (Pins 3, 6, 10, 13, 35, Exposed Pad Pin 41):
ADC to 0.439 • VDD. VCM should be used to bias the common Power Ground. The exposed pad must be soldered to the mode of the analog inputs. Bypass to ground with a 0.1µF PCB ground. ceramic capacitor.
A + IN (Pin 4):
Positive Differential Analog Input.
ENC+ (Pin 11):
Encode Input. Conversion starts on the
A –
rising edge.
IN (Pin 5):
Negative Differential Analog Input.
SENSE (Pin 7):
Reference Programming Pin. Connecting
ENC– (Pin 12):
Encode Complement Input. Conversion SENSE to V starts on the falling edge. DD selects the internal reference and a ±0.66V input range. An external reference between 1.23V and
OVDD (Pins 20, 30):
1.8V Output Driver Supply. Bypass 1.27V applied to SENSE selects an input range of ±0.528 to ground with a 0.1µF ceramic capacitor. • VSENSE. 215314fa 8 For more information www.linear.com/LTC2153-14 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Power Requirements Digital Inputs And Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Related Parts
Typical perForMance characTerisTics LTC2153-14: IOVDD vs Sample Rate, LTC2153-14: IVDD vs Sample Rate, 15MHz Sine Wave Input, –1dBFS 15MHz Sine Wave Input, –1dBFS LTC2153-14: Frequency Response
60 200 –0.5 55 190 –1.0 50 LVDS CURRENT 180 –1.5 3.5mA 45 –2.0 170 (mA) 40 (mA) –2.5 I VDD 160 I OVDD 35 –3.0 LVDS CURRENT 150 30 1.75mA INPUT AMPLITUDE (dBFS) –3.5 140 25 –4.0 20 130 –4.5 0 50 100 150 200 250 300 0 62 124 186 248 310 100 1000 SAMPLE RATE (Msps) SAMPLE RATE (Msps) INPUT FREQUENCY (MHz) 215314 G18 215314 G19 215314 G20
pin FuncTions VDD (Pins 1, 2):
1.8V Analog Power Supply. Bypass to
VREF (Pin 8):
Reference Voltage Output. Bypass to ground ground with 0.1µF ceramic capacitor. Pins 1, 2 can share with a 2.2µF ceramic capacitor. Nominally 1.25V. a bypass capacitor.
VCM (Pin 9):
Common Mode Bias Output; nominally equal
GND (Pins 3, 6, 10, 13, 35, Exposed Pad Pin 41):
ADC to 0.439 • VDD. VCM should be used to bias the common Power Ground. The exposed pad must be soldered to the mode of the analog inputs. Bypass to ground with a 0.1µF PCB ground. ceramic capacitor.
A + IN (Pin 4):
Positive Differential Analog Input.
ENC+ (Pin 11):
Encode Input. Conversion starts on the
A –
rising edge.
IN (Pin 5):
Negative Differential Analog Input.
SENSE (Pin 7):
Reference Programming Pin. Connecting
ENC– (Pin 12):
Encode Complement Input. Conversion SENSE to V starts on the falling edge. DD selects the internal reference and a ±0.66V input range. An external reference between 1.23V and
OVDD (Pins 20, 30):
1.8V Output Driver Supply. Bypass 1.27V applied to SENSE selects an input range of ±0.528 to ground with a 0.1µF ceramic capacitor. • VSENSE. 215314fa 8 For more information www.linear.com/LTC2153-14 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Power Requirements Digital Inputs And Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Related Parts