Datasheet LTC2248, LTC2247, LTC2246 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | 14-Bit, 65Msps Low Power 3V ADCs |
| Seiten / Seite | 24 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS. LTC2248: SNR and SFDR vs Sample … |
| Dateiformat / Größe | PDF / 795 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CHARACTERISTICS. LTC2248: SNR and SFDR vs Sample Rate, 2V Range,. LTC2248: SNR and SFDR vs
Modelllinie für dieses Datenblatt
- LTC2246CUH#PBF LTC2246CUH#PBF LTC2246CUH#TRPBF LTC2246CUH#TRPBF LTC2246IUH#PBF LTC2246IUH#PBF LTC2246IUH#TRPBF LTC2246IUH#TRPBF
Textversion des Dokuments
LTC2248/LTC2247/LTC2246
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2248: SNR and SFDR vs Sample Rate, 2V Range, LTC2248: SNR and SFDR vs LTC2248: SNR vs Input Level, fIN = 5MHz, –1dB Clock Duty Cycle, 65Msps fIN = 30MHz, 2V Range, 65Msps
110 100 80 SFDR: DCS ON dBFS 70 95 100 SFDR 60 90 90 SFDR: DCS OFF 50 dBc 85 40 80 30 SNR 80 SNR AND SFDR (dBFS) SNR AND SFDR (dBFS) SNR (dBc AND dBFS) 20 70 75 SNR: DCS ON 10 SNR: DCS OFF 60 70 0 0 10 20 30 40 50 60 70 80 90 100 110 30 35 40 45 50 55 60 65 70 –60 – 50 – 40 –30 –20 –10 0 SAMPLE RATE (Msps) CLOCK DUTY CYCLE (%) INPUT LEVEL (dBFS) 2248 G11 2247 G12 2248 G13
LTC2248: IOVDD vs Sample Rate, LTC2248: SFDR vs Input Level, LTC2248: I 5MHz Sine Wave Input, –1dB, VDD vs Sample Rate, f 5MHz Sine Wave Input, –1dB O IN = 30MHz, 2V Range, 65Msps VDD = 1.8V
120 80 6 110 dBFS 75 100 5 90 70 4 80 1V RANGE dBc 70 (mA) (mA) 65 3 2V RANGE 90dBc SFDR I VDD 60 I OVDD REFERENCE LINE 60 2 SFDR (dBc AND dBFS) 50 40 55 1 30 20 50 0 –60 – 50 – 40 –30 –20 –10 0 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2248 G14 2248 G15 2248 G16
LTC2247: 8192 Point FFT, LTC2247: Typical INL, LTC2247: Typical DNL, fIN = 5MHz, –1dB, 2V Range, 2V Range, 40Msps 2V Range, 40Msps 40Msps
2.0 1.00 0 –10 1.5 0.75 –20 1.0 0.50 –30 –40 0.5 0.25 –50 0 0 –60 –70 –0.5 –0.25 INL ERROR (LSB) AMPLITUDE (dB) DNL ERROR (LSB) –80 –1.0 –0.50 –90 –100 –1.5 –0.75 –110 –2.0 –1.00 –120 0 4096 8192 12288 16384 0 4096 8192 12288 16384 0 5 10 15 20 CODE CODE FREQUENCY (MHz) 2247 G01 2247 G02 2247 G03 224876fa 7
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2248: SNR and SFDR vs Sample Rate, 2V Range, LTC2248: SNR and SFDR vs LTC2248: SNR vs Input Level, fIN = 5MHz, –1dB Clock Duty Cycle, 65Msps fIN = 30MHz, 2V Range, 65Msps
110 100 80 SFDR: DCS ON dBFS 70 95 100 SFDR 60 90 90 SFDR: DCS OFF 50 dBc 85 40 80 30 SNR 80 SNR AND SFDR (dBFS) SNR AND SFDR (dBFS) SNR (dBc AND dBFS) 20 70 75 SNR: DCS ON 10 SNR: DCS OFF 60 70 0 0 10 20 30 40 50 60 70 80 90 100 110 30 35 40 45 50 55 60 65 70 –60 – 50 – 40 –30 –20 –10 0 SAMPLE RATE (Msps) CLOCK DUTY CYCLE (%) INPUT LEVEL (dBFS) 2248 G11 2247 G12 2248 G13
LTC2248: IOVDD vs Sample Rate, LTC2248: SFDR vs Input Level, LTC2248: I 5MHz Sine Wave Input, –1dB, VDD vs Sample Rate, f 5MHz Sine Wave Input, –1dB O IN = 30MHz, 2V Range, 65Msps VDD = 1.8V
120 80 6 110 dBFS 75 100 5 90 70 4 80 1V RANGE dBc 70 (mA) (mA) 65 3 2V RANGE 90dBc SFDR I VDD 60 I OVDD REFERENCE LINE 60 2 SFDR (dBc AND dBFS) 50 40 55 1 30 20 50 0 –60 – 50 – 40 –30 –20 –10 0 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2248 G14 2248 G15 2248 G16
LTC2247: 8192 Point FFT, LTC2247: Typical INL, LTC2247: Typical DNL, fIN = 5MHz, –1dB, 2V Range, 2V Range, 40Msps 2V Range, 40Msps 40Msps
2.0 1.00 0 –10 1.5 0.75 –20 1.0 0.50 –30 –40 0.5 0.25 –50 0 0 –60 –70 –0.5 –0.25 INL ERROR (LSB) AMPLITUDE (dB) DNL ERROR (LSB) –80 –1.0 –0.50 –90 –100 –1.5 –0.75 –110 –2.0 –1.00 –120 0 4096 8192 12288 16384 0 4096 8192 12288 16384 0 5 10 15 20 CODE CODE FREQUENCY (MHz) 2247 G01 2247 G02 2247 G03 224876fa 7