Datasheet LTC2220, LTC2221 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 12-Bit, 135Msps ADCs |
| 页数 / 页 | 32 / 6 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 6:. Note 7:. Note 2:. Note 8:. … |
| 文件格式/大小 | PDF / 816 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 6:. Note 7:. Note 2:. Note 8:. Note 9:. Note 3:. Note 10:. Note 4:. Note 11:. Note 5:. Note 12:
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文件文字版本
LTC2220/LTC2221
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
Offset error is the offset voltage measured from –0.5 LSB when the may cause permanent damage to the device. Exposure to any Absolute output code flickers between 0000 0000 0000 and 1111 1111 1111 in 2’s Maximum Rating condition for extended periods may affect device complement output mode. reliability and lifetime.
Note 7:
Guaranteed by design, not subject to test.
Note 2:
All voltage values are with respect to ground with GND and OGND
Note 8:
Recommended operating conditions. wired together (unless otherwise noted).
Note 9:
VDD = 3.3V, fSAMPLE = 170MHz (LTC2220) or 135MHz (LTC2221),
Note 3:
When these pin voltages are taken below GND or above VDD, they will differential ENC+/ENC– = 2VP-P sine wave, input range = 1VP-P with differential be clamped by internal diodes. This product can handle input currents of drive, output CLOAD = 5pF. greater than 100mA below GND or above VDD without latchup.
Note 10:
SNR minimum and typical values are for LVDS mode. Typical values
Note 4:
VDD = 3.3V, fSAMPLE = 170MHz (LTC2220) or 135MHz (LTC2221), for CMOS mode are typically 0.3dB lower. LVDS outputs, differential ENC+/ENC– = 2VP-P sine wave, input range =
Note 11:
SFDR minimum values are for LVDS mode. Typical values are for 2VP-P with differential drive, unless otherwise noted. both LVDS and CMOS modes.
Note 5:
Integral nonlinearity is defined as the deviation of a code from a “best
Note 12:
SINAD minimum and typical values are for LVDS mode. Typical straight line” fit to the transfer curve. The deviation is measured from the values for CMOS mode are typically 0.3dB lower. center of the quantization band.
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C unless otherwise noted, Note 4) LTC2220: Shorted Input Noise LTC2220: INL, 2V Range LTC2220: DNL, 2V Range Histogram
1.0 1.0 100000 93571 0.8 0.8 0.6 0.6 80000 0.4 0.4 0.2 0.2 60000 0 0 COUNT – 0.2 – 0.2 40000 ERROR (LSB) ERROR (LSB) – 0.4 – 0.4 24266 – 0.6 – 0.6 20000 12866 – 0.8 – 0.8 229 140 – 1.0 – 1.0 –0 0 1024 2048 3072 4096 0 1024 2048 3072 4096 2056 2057 2058 2059 2060 OUTPUT CODE OUTPUT CODE CODE 2220 G01 2220 G02 2220 G03
LTC2220: SNR vs Input LTC2220: SNR vs Input LTC2220: SFDR (HD2 and HD3) Frequency, –1dB, 2V Range, Frequency, –1dB, 1V Range, vs Input Frequency, –1dB, 2V LVDS Mode LVDS Mode Range, LVDS Mode
70 70 100 69 69 90 68 68 67 67 80 66 66 65 65 70 SNR (dBFS) 64 SNR (dBFS) 64 SFDR (dBFS) 60 63 63 62 62 50 61 61 60 60 40 0 100 200 300 400 500 600 0 100 200 300 400 500 600 0 100 200 300 400 500 600 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 2220 G04 2220 G05 2220 G06 22201fa 6
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
Offset error is the offset voltage measured from –0.5 LSB when the may cause permanent damage to the device. Exposure to any Absolute output code flickers between 0000 0000 0000 and 1111 1111 1111 in 2’s Maximum Rating condition for extended periods may affect device complement output mode. reliability and lifetime.
Note 7:
Guaranteed by design, not subject to test.
Note 2:
All voltage values are with respect to ground with GND and OGND
Note 8:
Recommended operating conditions. wired together (unless otherwise noted).
Note 9:
VDD = 3.3V, fSAMPLE = 170MHz (LTC2220) or 135MHz (LTC2221),
Note 3:
When these pin voltages are taken below GND or above VDD, they will differential ENC+/ENC– = 2VP-P sine wave, input range = 1VP-P with differential be clamped by internal diodes. This product can handle input currents of drive, output CLOAD = 5pF. greater than 100mA below GND or above VDD without latchup.
Note 10:
SNR minimum and typical values are for LVDS mode. Typical values
Note 4:
VDD = 3.3V, fSAMPLE = 170MHz (LTC2220) or 135MHz (LTC2221), for CMOS mode are typically 0.3dB lower. LVDS outputs, differential ENC+/ENC– = 2VP-P sine wave, input range =
Note 11:
SFDR minimum values are for LVDS mode. Typical values are for 2VP-P with differential drive, unless otherwise noted. both LVDS and CMOS modes.
Note 5:
Integral nonlinearity is defined as the deviation of a code from a “best
Note 12:
SINAD minimum and typical values are for LVDS mode. Typical straight line” fit to the transfer curve. The deviation is measured from the values for CMOS mode are typically 0.3dB lower. center of the quantization band.
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C unless otherwise noted, Note 4) LTC2220: Shorted Input Noise LTC2220: INL, 2V Range LTC2220: DNL, 2V Range Histogram
1.0 1.0 100000 93571 0.8 0.8 0.6 0.6 80000 0.4 0.4 0.2 0.2 60000 0 0 COUNT – 0.2 – 0.2 40000 ERROR (LSB) ERROR (LSB) – 0.4 – 0.4 24266 – 0.6 – 0.6 20000 12866 – 0.8 – 0.8 229 140 – 1.0 – 1.0 –0 0 1024 2048 3072 4096 0 1024 2048 3072 4096 2056 2057 2058 2059 2060 OUTPUT CODE OUTPUT CODE CODE 2220 G01 2220 G02 2220 G03
LTC2220: SNR vs Input LTC2220: SNR vs Input LTC2220: SFDR (HD2 and HD3) Frequency, –1dB, 2V Range, Frequency, –1dB, 1V Range, vs Input Frequency, –1dB, 2V LVDS Mode LVDS Mode Range, LVDS Mode
70 70 100 69 69 90 68 68 67 67 80 66 66 65 65 70 SNR (dBFS) 64 SNR (dBFS) 64 SFDR (dBFS) 60 63 63 62 62 50 61 61 60 60 40 0 100 200 300 400 500 600 0 100 200 300 400 500 600 0 100 200 300 400 500 600 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 2220 G04 2220 G05 2220 G06 22201fa 6