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參數(shù)資料
| 型號(hào)： | MAX1421CCM+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 40MSPS 48LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 40M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 214mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個(gè)差分，雙極 |
MAX1421
12-Bit, 40Msps, 3.3V, Low-Power ADC
with Internal Reference
_______________________________________________________________________________________
5
Note 1: Internal reference, REFIN bypassed to AGND with a combination of 0.22F in parallel with 1nF capacitor.
Note 2: External 2.048V reference applied to REFIN.
Note 3: Internal reference disabled. VREFIN = 0, VREFP = 2.162V, VCML = 1.65V, and VREFN = 1.138V.
Note 4: IMD is measured with respect to either of the fundamental tones.
Note 5: Specifies the common-mode range of the differential input signal supplied to the MAX1421.
Note 6: VDIFF = VREFP - VREFN.
Note 7: Input bandwidth is measured at a 3dB level.
Note 8: VREFIN is internally biased to 2.048V through a 10k
resistor.
Note 9: Measured as the ratio of the change in mid-scale offset voltage for a ± 5% change in VAVDD using the internal reference.
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage at -0.5dB FS, internal reference,
fCLK = 40MHz (50% duty cycle), digital output load CL
≈ 10pF, TA ≥ +25°C guaranteed by production test, TA < +25°C guarnateed
by design and characterization. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Pipeline Delay (Latency)
Figure 5
7
fCLK
cycles
Aperture Delay
tAD
Figure 9
2
ns
Aperture Jitter
tAJ
Figure 9
2
ps
Data Output Delay
tOD
Figure 5
5
10
14
ns
Bus Enable Time
tBE
Figure 4
5
ns
Bus Disable Time
tBD
Figure 4
5
ns
Typical Operating Characteristics
(VAVDD = VDVDD = 3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage, fCLK = 40MHz (50% duty cycle), digital output
load CL = 10pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
-120
-80
-100
-40
-60
-20
0
010
515
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
MAX1421
toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
fIN = 7.54MHz
AIN = -0.45dB FS
HD3
HD2
-120
-80
-100
-40
-60
-20
0
010
515
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
MAX1421
toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
fIN = 19.90MHz
AIN = -0.50dB FS
HD2
HD3
fIN
-120
-80
-100
-40
-60
-20
0
010
515
20
FFT PLOT, 4096-POINT RECORD,
DIFFERENTIAL INPUT
MAX1421
toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
fIN = 38.54MHz
AIN = -0.49dB FS
HD3
HD2
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