參數(shù)資料
型號: MAX1178CCUP+T
廠商: Maxim Integrated Products
文件頁數(shù): 13/14頁
文件大小: 0K
描述: IC ADC 16BIT 135KSPS 20-TSSOP
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 16
采樣率(每秒): 135k
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 879mW
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: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個單端,雙極
MAX1178/MAX1188
Power-Down Modes
Select standby mode or shutdown mode with the R/C
bit during the second falling edge of CS (see the
Selecting Standby or Shutdown Mode section). The
MAX1178/MAX1188 automatically enter either standby
mode (reference and buffer on) or shutdown (reference
and buffer off) after each conversion, depending on the
status of R/C during the second falling edge of CS.
Internal Clock
The MAX1178/MAX1188 generate an internal conver-
sion clock to free the P from the burden of running the
SAR conversion clock. Total conversion time (tCONV)
after entering hold mode (second falling edge of CS) to
end-of-conversion (EOC) falling is 4.7s (max).
Applications Information
Starting a Conversion
CS and R/C control acquisition and conversion in the
MAX1178/MAX1188 (Figure 2). The first falling edge of
CS powers up the device and puts it in acquire mode if
R/C is low. The convert start is ignored if R/C is high.
The MAX1178/MAX1188 need at least 12ms for the
internal reference to wake up and settle before starting
the conversion (CREFADJ = 0.1F, CREF = 10F), if
powering up from shutdown.
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
8
_______________________________________________________________________________________
CS
R/C
REF POWER-
DOWN CONTROL
EOC
tACQ
tCONV
tCSH
tCSL
tDH
tDO
tEOC
tDS
tDV
HBEN
D7/D15–D0/D8
HIGH/LOW
BYTE VALID
HIGH/LOW
BYTE VALID
tDO
tDO1
HIGH-Z
tBR
HIGH-Z
Figure 2. MAX1178/MAX1188 Timing Diagram
D0–D7
OR
D8–D15
P DATA
BUS
AVDD
DVDD
AGND DGND
+5V ANALOG
+5V DIGITAL
ANALOG INPUT
AIN
HBEN
EOC
CS
R/C
REF
REFADJ
HIGH
BYTE
LOW
BYTE
10
F
0.1
F
0.1
F
0.1
F
MAX1178
MAX1188
Figure 3. Typical Operating Circuit for the MAX1178/MAX1188
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