Datasheet LTC2205, LTC2204 (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | 16-Bit, 65Msps ADCs |
| Páginas / Página | 36 / 6 — The. TIMING CHARACTERISTICS. denotes the specifi cations which apply over … |
| Formato / tamaño de archivo | PDF / 1.4 Mb |
| Idioma del documento | Inglés |
The. TIMING CHARACTERISTICS. denotes the specifi cations which apply over the full operating temperature
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LTC2205/LTC2204
The TIMING CHARACTERISTICS
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) LTC2204 LTC2205 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
fS Sampling Frequency l 1 40 1 65 MHz tL ENC Low Time Duty Cycle Stabilizer Off (Note 7) l 10.4 12.5 500 6.40 7.69 500 ns Duty Cycle Stabilizer On (Note 7) l 2.7 12.5 500 2.70 7.69 500 ns tH ENC High Time Duty Cycle Stabilizer Off (Note 7) l 10.4 12.5 500 6.40 7.69 500 ns Duty Cycle Stabilizer On (Note 7) 2.7 12.5 500 2.70 7.69 500 ns tAP Sample-and-Hold 0.7 0.7 ns Aperture Delay tD ENC to DATA Delay (Note 7) l 1.3 2.7 4.0 1.3 2.7 4.0 ns tC ENC to CLKOUT Delay (Note 7) l 1.3 2.7 4.0 1.3 2.7 4.0 ns tSKEW DATA to CLKOUT Skew (tD – tC) (Note 7) l –0.6 0 0.6 –0.6 0 0.6 ns tOE DATA Access Time CL = 5pf (Note 7) l 5 15 5 15 ns Bus Relinquish Time (Note 7) l 5 15 5 15 ns Pipeline 7 7 Cycles Latency
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings input range = 2.25VP-P with differential drive (PGA = 0), unless otherwise may cause permanent damage to the device. Exposure to any Absolute specifi ed. Maximum Rating condition for extended periods may affect device
Note 5:
Integral nonlinearity is defi ned as the deviation of a code from reliability and lifetime. a “best fi t straight line” to the transfer curve. The deviation is measured
Note 2:
All voltage values are with respect to GND, with GND and OGND from the center of the quantization band. shorted (unless otherwise noted).
Note 6:
Offset error is the offset voltage measured from –1/2LSB when the
Note 3:
When these pin voltages are taken below GND or above VDD, they output code fl ickers between 0000 0000 0000 0000 and 1111 1111 1111 will be clamped by internal diodes. This product can handle input currents 1111 in 2’s complement output mode. of greater than 100mA below GND or above VDD without latchup.
Note 7:
Guaranteed by design, not subject to test.
Note 4:
VDD = 3.3V, fSAMPLE = 65MHz (LTC2205), 40MHz (LTC2204)
Note 8:
Recommended operating conditions. differential ENC+/ENC– = 2VP-P sine wave with 1.6V common mode,
TIMING DIAGRAM
tAP N + 1 N + 4 ANALOG INPUT N N + 3 N + 2 tH tL ENC– ENC+ tD D0-D15, OF N – 7 N – 6 N – 5 N – 4 N – 3 tC CLKOUT+ CLKOUT – 22054 TD01 22054fc 6
The TIMING CHARACTERISTICS
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) LTC2204 LTC2205 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
fS Sampling Frequency l 1 40 1 65 MHz tL ENC Low Time Duty Cycle Stabilizer Off (Note 7) l 10.4 12.5 500 6.40 7.69 500 ns Duty Cycle Stabilizer On (Note 7) l 2.7 12.5 500 2.70 7.69 500 ns tH ENC High Time Duty Cycle Stabilizer Off (Note 7) l 10.4 12.5 500 6.40 7.69 500 ns Duty Cycle Stabilizer On (Note 7) 2.7 12.5 500 2.70 7.69 500 ns tAP Sample-and-Hold 0.7 0.7 ns Aperture Delay tD ENC to DATA Delay (Note 7) l 1.3 2.7 4.0 1.3 2.7 4.0 ns tC ENC to CLKOUT Delay (Note 7) l 1.3 2.7 4.0 1.3 2.7 4.0 ns tSKEW DATA to CLKOUT Skew (tD – tC) (Note 7) l –0.6 0 0.6 –0.6 0 0.6 ns tOE DATA Access Time CL = 5pf (Note 7) l 5 15 5 15 ns Bus Relinquish Time (Note 7) l 5 15 5 15 ns Pipeline 7 7 Cycles Latency
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings input range = 2.25VP-P with differential drive (PGA = 0), unless otherwise may cause permanent damage to the device. Exposure to any Absolute specifi ed. Maximum Rating condition for extended periods may affect device
Note 5:
Integral nonlinearity is defi ned as the deviation of a code from reliability and lifetime. a “best fi t straight line” to the transfer curve. The deviation is measured
Note 2:
All voltage values are with respect to GND, with GND and OGND from the center of the quantization band. shorted (unless otherwise noted).
Note 6:
Offset error is the offset voltage measured from –1/2LSB when the
Note 3:
When these pin voltages are taken below GND or above VDD, they output code fl ickers between 0000 0000 0000 0000 and 1111 1111 1111 will be clamped by internal diodes. This product can handle input currents 1111 in 2’s complement output mode. of greater than 100mA below GND or above VDD without latchup.
Note 7:
Guaranteed by design, not subject to test.
Note 4:
VDD = 3.3V, fSAMPLE = 65MHz (LTC2205), 40MHz (LTC2204)
Note 8:
Recommended operating conditions. differential ENC+/ENC– = 2VP-P sine wave with 1.6V common mode,
TIMING DIAGRAM
tAP N + 1 N + 4 ANALOG INPUT N N + 3 N + 2 tH tL ENC– ENC+ tD D0-D15, OF N – 7 N – 6 N – 5 N – 4 N – 3 tC CLKOUT+ CLKOUT – 22054 TD01 22054fc 6