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參數(shù)資料
| 型號： | MAX1099CEAE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT SERIAL 16-SSOP |
| 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)： | 10 |
| 采樣率（每秒）： | 900 |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.2mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 6 個(gè)差分，單極 |
MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
14
______________________________________________________________________________________
Input Data Format
Input data (configuration and conversion bytes) are
clocked into the MAX1098/MAX1099 at DIN on the ris-
ing edge of SCLK when CS is low. The start bit (MSB)
of an input data byte is the first logic 1 bit that arrives:
After CS falls
OR
After receipt of a complete configuration byte with no
conversion in progress
OR
After 16 bits have been clocked onto DOUT following a
conversion.
Output Data Format
Output data from the MAX1098/MAX1099 are clocked
onto DOUT on the falling edge of SCLK in the form of two
8-bit words, MSB first (Table 5). For temperature conver-
sions, the output is 12-bit binary (D8–S2) padded with 2
leading extraneous bits and two trailing zeros. For volt-
age conversions, the output is 10-bit two’s-complement
binary (D9–D0) with 3 sub-bits and two trailing zeros.
Figure 5 shows the bipolar transfer function.
Performing a Conversion
On power-up, the MAX1098/MAX1099 default to shut-
down mode. Start a conversion by transferring a configu-
ration byte and a conversion byte into DIN with the
control formats shown in Tables 1 and 2, respectively.
(See Power Modes for a related discussion.)
SSTRB goes low on the falling edge of the last bit of the
conversion byte, and it returns high when the conversion
is complete. For best noise performance, SCLK should
remain low while SSTRB is low. Typical conversion times
are 2.2ms for temperature measurements and 1.1ms for
voltage measurements. The MSB of the 2 output bytes is
present at DOUT starting at the rising edge of SSTRB.
Successive SCLK falling edges shift the two 8-bit data
bytes out from an internal register. Additional (>16)
SCLK edges will result in zeros on DOUT.
SSTRB does not go into a high-impedance state when
CS goes high. Pulling CS high prevents data from
being clocked in or out, but it does not adversely affect
a conversion in progress. Figure 6 shows SSTRB timing
details.
Subsequent conversions with the same reference mode
do not require a configuration byte.
tCSS
tDS
tCH
tCS1
tCS0
tCSH
tCS
tCL
tDV
DOUT
DIN
SCLK
CS
tDH
tDO
tTR
VALID
X
Figure 4. Detailed Serial Interface Timing
0111111111
0111111110
0000000010
0000000001
0000000000
1111111111
1111111110
1111111101
1000000010
1000000001
OUTPUT CODE
+FS = + 2VREF
-FS = - 2VREF
1LSB =
2VREF
512
0
+ FS - 1LSB
- FS + 1LSB
IN+ - IN - (LSB)
Figure 5. Bipolar Transfer Function
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