AD9042 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
AD9042 Datasheet PDF : 24 Pages
| |||
AC SPECIFICATIONS1
(AVCC = DVCC = +5 V; ENCODE & ENCODE = 41 MSPS;
VREF tied to VOFFSET through 50 Ω; TMIN = –40؇C, TMAX = +85؇C)2
Parameter (Conditions)
Test
AD9042AST
Temp Level Min Typ Max
Test
Level
AD9042
AD9042AD
Min Typ Max
Units
SNR3
Analog Input 1.2 MHz
+25°C V
68
I
65 68
dB
@ –1 dBFS
Full
V
67.5
V
67.5
dB
9.6 MHz
+25°C V
67.5
I
64.5 67.5
dB
Full
V
67
V
67
dB
19.5 MHz
+25°C I
64 67
I
64 67
dB
Full
V
66.5
V
66.5
dB
SINAD4
Analog Input 1.2 MHz
+25°C V
67.5
I
64 67.5
dB
@ –1 dBFS
Full
V
67
V
67
dB
9.6 MHz
+25°C V
67.5
I
64 67.5
dB
Full
V
67
V
67
dB
19.5 MHz
+25°C I
64 67
I
64 67
dB
Full
V
66.5
V
66.5
dB
Worst Spur5
Analog Input 1.2 MHz
+25°C V
80
I
74 80
dBc
@ –1 dBFS
Full
V
78
V
78
dBc
9.6 MHz
+25°C V
80
I
74 80
dBc
Full
V
78
V
78
dBc
19.5 MHz
+25°C I
73 80
I
73 80
dBc
Full
V
78
V
78
dBc
Small Signal SFDR (w/Dither)6
Analog Input @1.2 MHz
9.6 MHz
19.5 MHz
Full
V
Full
V
Full
V
90
V
90
V
90
V
90
dBFS
90
dBFS
90
dBFS
Two-Tone IMD Rejection7
F1, F2 @ –7 dBFS
Full
V
80
V
80
dBc
Two-Tone SFDR (w/Dither)8
Full
V
90
V
90
dBFS
Thermal Noise
+25°C V
0.33
V
0.33
LSB rms
Differential Nonlinearity
(ENCODE = 20 MSPS)
+25°C I
Full
V
–1.0 ± 0.3 +1.0 I
± 0.4
VI
–1.0 ± 0.3 +1.0 LSB
–1.0
+1.25 LSB
Integral Nonlinearity
(ENCODE = 20 MSPS)
Full
V
± 0.75
V
± 0.75
LSB
Analog Input Bandwidth
+25°C V
100
V
100
MHz
Transient Response
+25°C V
10
V
10
ns
Overvoltage Recovery Time
+25°C V
25
V
25
ns
NOTES
1All ac specifications tested by driving ENCODE and ENCODE differentially; see “ENCODING the AD9042” for details.
2C1 (Pin 10 on AD9042AST only) tied to GND through 0.01 µF capacitor.
3Analog input signal power at –1 dBFS; signal-to-noise ratio (SNR) is the ratio of signal level to total noise (first five harmonics removed).
4Analog input signal power at –1 dBFS; signal-to-noise and distortion (SINAD ) is the ratio of signal level to total noise + harmonics.
5Analog input signal power at –1 dBFS; worst spur is the ratio of the signal level to worst spur, usually limited by harmonics.
6Analog input signal power swept from –20 dBFS to –95 dBFS; dither power = –32.5 dBm; dither circuit used on input signal (see “Overcoming Static Nonlinearities
with Dither”); SFDR is ratio of converter full scale to worst spur.
7Tones at –7 dBFS (F1 = 15.3 MHz, F2 = 19.5 MHz); two tone intermodulation distortion (IMD) rejection is ratio of either tone to worst third order intermod product.
8Both input tones swept from –20 to –95 dBFS; Dither power = –32.5 dBm; dither circuit used on input signal (see “Overcoming Static Nonlinearities with Dither);
two tone spurious-free dynamic range (SFDR) is the ratio of converter full scale to worst spur.
Specifications subject to change without notice.
REV. A
–3–
Share Link: 