參數(shù)資料
型號(hào)： MAX1422CCM+TD
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 10/15頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT 20MSPS 48LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,000
位數(shù)： 12
采樣率（每秒）： 20M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 152mW
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： 帶卷 (TR)
輸入數(shù)目和類型： 1 個(gè)差分，雙極
MAX1422
12-Bit, 20Msps, 3.3V, Low-Power ADC with
Internal Reference
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CLK, CLK
±330
PD
-20
20
Input Current
OE
-20
20
A
Input Capacitance
10
pF
DIGITAL OUTPUTS (D0–D11)
Output Logic High
VOH
IOH = 200A
VDVDD
- 0.5
VDVDD
V
Output Logic Low
VOL
IOL = -200A
0
0.5
V
Three-State Leakage
-10
10
A
Three-State Capacitance
2pF
POWER REQUIREMENTS
Analog Supply Voltage
VAVDD
3.138
3.3
3.465
V
Digital Supply Voltage
VDVDD
2.7
3.3
3.63
V
Analog Supply Current
IAVDD
39
46
mA
Analog Supply Current with
Internal Reference in Shutdown
VREFIN = 0
37
44
mA
Analog Shutdown Current
PD = DVDD
20
A
Digital Supply Current
IDVDD
3mA
Digital Shutdown Current
PD = DVDD
20
A
Power Dissipation
PDISS
Analog power dissipation
137
152
mW
Power-Supply Rejection Ratio
PSRR
(Note 9)
±1
mV/V
TIMING CHARACTERISTICS
Maximum Clock Frequency
fCLK
Figure 6
20
MHz
Clock High
tCH
Figure 6, clock period 50ns
25
ns
Clock Low
tCL
Figure 6, clock period 50ns
25
ns
Pipeline Delay (Latency)
Figure 6
7
Clock
cycles
Aperture Delay
tAD
Figure 10
2
ns
Aperture Jitter
tAJ
Figure 10
2
ps
Data Output Delay
tOD
Figure 6
5
10
14
ns
Bus Enable Time
tBE
Figure 5
5
ns
Bus Disable Time
tBD
Figure 5
5
ns
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage at -0.5dBFS, internal reference, fCLK = 20MHz (50%
duty cycle); digital output load CL = 10pF,
≥+25°C guaranteed by production test, <+25°C guaranteed by design and characterization.
Typical values are at TA = +25°C.)
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 MAX1422.
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1422ECM 制造商:Maxim Integrated Products 功能描述:48 PINS TQFP PKG - Bulk
MAX1422ECM+D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1422ECM+TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1422ECM-D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1422ECM-TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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