Datasheet LTC2248, LTC2247, LTC2246 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 14-Bit, 65Msps Low Power 3V ADCs |
| Pages / Page | 24 / 5 — W U. TI I G CHARACTERISTICS The. denotes the specifications which apply … |
| File Format / Size | PDF / 795 Kb |
| Document Language | English |
W U. TI I G CHARACTERISTICS The. denotes the specifications which apply over the full operating temperature
Model Line for this Datasheet
- LTC2246CUH#PBF LTC2246CUH#PBF LTC2246CUH#TRPBF LTC2246CUH#TRPBF LTC2246IUH#PBF LTC2246IUH#PBF LTC2246IUH#TRPBF LTC2246IUH#TRPBF
Text Version of Document
LTC2248/LTC2247/LTC2246
W U TI I G CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 4) LTC2248 LTC2247 LTC2246 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
fs Sampling Frequency (Note 9) ● 1 65 1 40 1 25 MHz tL CLK Low Time Duty Cycle Stabilizer Off ● 7.3 7.7 500 11.8 12.5 500 18.9 20 500 ns Duty Cycle Stabilizer On ● 5 7.7 500 5 12.5 500 5 20 500 ns (Note 7) tH CLK High Time Duty Cycle Stabilizer Off ● 7.3 7.7 500 11.8 12.5 500 18.9 20 500 ns Duty Cycle Stabilizer On ● 5 7.7 500 5 12.5 500 5 20 500 ns (Note 7) tAP Sample-and-Hold 0 0 0 ns Aperture Delay tD CLK to DATA delay CL = 5pF (Note 7) ● 1.4 2.7 5.4 1.4 2.7 5.4 1.4 2.7 5.4 ns Data Access Time CL = 5pF (Note 7) ● 4.3 10 4.3 10 4.3 10 ns After OE↓ BUS Relinquish Time (Note 7) ● 3.3 8.5 3.3 8.5 3.3 8.5 ns Pipeline 5 5 5 Cycles Latency
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
Integral nonlinearity is defined as the deviation of a code from a may cause permanent damage to the device. Exposure to any Absolute straight line passing through the actual endpoints of the transfer curve. Maximum Rating condition for extended periods may affect device The deviation is measured from the center of the quantization band. reliability and lifetime.
Note 6:
Offset error is the offset voltage measured from –0.5 LSB when
Note 2:
All voltage values are with respect to ground with GND and OGND the output code flickers between 00 0000 0000 0000 and wired together (unless otherwise noted). 11 1111 1111 1111.
Note 3:
When these pin voltages are taken below GND or above VDD, they
Note 7:
Guaranteed by design, not subject to test. will be clamped by internal diodes. This product can handle input currents
Note 8:
VDD = 3V, fSAMPLE = 65MHz (LTC2248), 40MHz (LTC2247), or of greater than 100mA below GND or above VDD without latchup. 25MHz (LTC2246), input range = 1VP-P with differential drive.
Note 4:
VDD = 3V, fSAMPLE = 65MHz (LTC2248), 40MHz (LTC2247), or
Note 9:
Recommended operating conditions. 25MHz (LTC2246), input range = 2VP-P with differential drive, unless otherwise noted.
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2248: Typical INL, LTC2248: Typical DNL, 2V Range, 65Msps 2V Range, 65Msps
2.0 1.00 1.5 0.75 1.0 0.50 0.5 0.25 0 0 –0.5 –0.25 INL ERROR (LSB) DNL ERROR (LSB) –1.0 –0.50 –1.5 –0.75 –2.0 –1.00 0 4096 8192 12288 16384 0 4096 8192 12288 16384 CODE CODE 2248 G01 2248 G02 224876fa 5
W U TI I G CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 4) LTC2248 LTC2247 LTC2246 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
fs Sampling Frequency (Note 9) ● 1 65 1 40 1 25 MHz tL CLK Low Time Duty Cycle Stabilizer Off ● 7.3 7.7 500 11.8 12.5 500 18.9 20 500 ns Duty Cycle Stabilizer On ● 5 7.7 500 5 12.5 500 5 20 500 ns (Note 7) tH CLK High Time Duty Cycle Stabilizer Off ● 7.3 7.7 500 11.8 12.5 500 18.9 20 500 ns Duty Cycle Stabilizer On ● 5 7.7 500 5 12.5 500 5 20 500 ns (Note 7) tAP Sample-and-Hold 0 0 0 ns Aperture Delay tD CLK to DATA delay CL = 5pF (Note 7) ● 1.4 2.7 5.4 1.4 2.7 5.4 1.4 2.7 5.4 ns Data Access Time CL = 5pF (Note 7) ● 4.3 10 4.3 10 4.3 10 ns After OE↓ BUS Relinquish Time (Note 7) ● 3.3 8.5 3.3 8.5 3.3 8.5 ns Pipeline 5 5 5 Cycles Latency
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
Integral nonlinearity is defined as the deviation of a code from a may cause permanent damage to the device. Exposure to any Absolute straight line passing through the actual endpoints of the transfer curve. Maximum Rating condition for extended periods may affect device The deviation is measured from the center of the quantization band. reliability and lifetime.
Note 6:
Offset error is the offset voltage measured from –0.5 LSB when
Note 2:
All voltage values are with respect to ground with GND and OGND the output code flickers between 00 0000 0000 0000 and wired together (unless otherwise noted). 11 1111 1111 1111.
Note 3:
When these pin voltages are taken below GND or above VDD, they
Note 7:
Guaranteed by design, not subject to test. will be clamped by internal diodes. This product can handle input currents
Note 8:
VDD = 3V, fSAMPLE = 65MHz (LTC2248), 40MHz (LTC2247), or of greater than 100mA below GND or above VDD without latchup. 25MHz (LTC2246), input range = 1VP-P with differential drive.
Note 4:
VDD = 3V, fSAMPLE = 65MHz (LTC2248), 40MHz (LTC2247), or
Note 9:
Recommended operating conditions. 25MHz (LTC2246), input range = 2VP-P with differential drive, unless otherwise noted.
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2248: Typical INL, LTC2248: Typical DNL, 2V Range, 65Msps 2V Range, 65Msps
2.0 1.00 1.5 0.75 1.0 0.50 0.5 0.25 0 0 –0.5 –0.25 INL ERROR (LSB) DNL ERROR (LSB) –1.0 –0.50 –1.5 –0.75 –2.0 –1.00 0 4096 8192 12288 16384 0 4096 8192 12288 16384 CODE CODE 2248 G01 2248 G02 224876fa 5
