參數(shù)資料
型號: MAX1309ECM+
廠商: Maxim Integrated Products
文件頁數(shù): 13/37頁
文件大小: 0K
描述: IC ADC 12BIT 4CH 2.8MSPS 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): 1.36M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 1.82W
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°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: 管件
輸入數(shù)目和類型: 4 個單端,單極
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
20
______________________________________________________________________________________
Data Throughput
The data throughput (fTH) of the MAX1304–MAX1306/
MAX1308–MAX1310/MAX1312–MAX1314 is a function
of the clock speed (fCLK). In internal clock mode, fCLK =
15MHz (typ). In external clock mode, 100kHz
≤ fCLK
20MHz. When reading during conversion (Figures 7 and
8), calculate fTH as follows:
where N is the number of active channels and tQUIET is
the period of bus inactivity before the rising edge of
CONVST. See the
Starting a Conversion section for
more information.
Table 1 uses the above equation and shows the total
throughput as a function of the number of channels
selected for conversion.
Clock Modes
The MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–
MAX1314 provide a 15MHz internal conversion clock.
Alternatively, an external clock can be used.
Internal Clock
Internal clock mode frees the microprocessor from the
burden of running the ADC conversion clock. For inter-
nal clock operation, connect INTCLK/EXTCLK to AVDD
and connect CLK to DGND. Note that INTCLK/EXTCLK
is referenced to AVDD, not DVDD.
External Clock
For external clock operation, connect INTCLK/EXTCLK
to AGND and connect an external clock source to CLK.
Note that INTCLK/EXTCLK is referenced to AVDD, not
DVDD. The external clock frequency can be up to
20MHz. Linearity is not guaranteed with clock frequen-
cies below 100kHz due to droop in the T/H circuits.
f
tt
xN
f
TH
ACQ
QUIET
CLK
=
++
+
1
12
3
1
()
Table 1. Throughput vs. Channels Sampled: fCLK = 15MHz, tACQ = 100ns, tQUIET = 50ns
CHANNELS
SAMPLED
(N)
CLOCK CYCLES
UNTIL
LAST RESULT
CLOCK CYCLE
FOR READING
LAST CONVERSION
TOTAL
CONVERSION
TIME (ns)
TOTAL
THROUGHPUT
(ksps)
THROUGHPUT
PER CHANNEL
(fTH)
1
12
1
800
983
2
15
1
1000
1643
821
3
18
1
1200
2117
705
4
21
1
1400
2474
618
5
24
1
1600
2752
550
6
27
1
1800
2975
495
7
30
1
2000
3157
451
8
33
1
2200
3310
413
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MAX1309ECM/V+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.075Msps 3V Precision 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
MAX1309ECM/V+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.075Msps 3V Precision 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
MAX1309ECM+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.075Msps 3V Precision 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
MAX1309ECM+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.075Msps 3V Precision 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
MAX1309ECM-T 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