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參數(shù)資料
| 型號： | MAX11609EEE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC SERIAL 10BIT 8CH 16-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 94.4k |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 666.7mW |
| 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（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個單端，單極；8 個單端，雙極；4 個差分，單極；4 個差分，雙極 |
MAX11606–MAX11611
Low-Power, 4-/8-/12-Channel, I2C,
10-Bit ADCs in Ultra-Small Packages
18
Maxim Integrated
using an external reference or VDD as a reference, all
analog circuitry is inactive in shutdown and supply cur-
rent is less than 0.5A (typ). The digital conversion
results obtained in internal clock mode are maintained
in memory during shutdown and are available for
access through the serial interface at any time prior to a
STOP or a repeated START condition.
When idle, the MAX11606–MAX11611 continuously wait
for a START condition followed by their slave address (see
Slave Address section). Upon reading a valid address
byte the MAX11606–MAX11611 power-up. The internal
reference requires 10ms to wake up, so when using the
internal reference it should be powered up 10ms prior to
conversion or powered continuously. Wake-up is invisible
when using an external reference or VDD as the reference.
Automatic shutdown results in dramatic power savings,
particularly at slow conversion rates and with internal
clock. For example, at a conversion rate of 10ksps, the
average supply current for the MAX11607 is 60A (typ)
and drops to 6A (typ) at 1ksps. At 0.1ksps the average
supply current is just 1A, or a minuscule 3W of power
consumption, see Average Supply Current vs. Conversion
Rate in the
Typical Operating Characteristics).
Reference Voltage
SEL[2:0] of the setup byte (Table 1) control the reference
and the AIN_/REF configuration (Table 6). When
AIN_/REF is configured to be a reference input or refer-
ence output (SEL1 = 1), differential conversions on
AIN_/REF appear as if AIN_/REF is connected to GND
(see note 2 of Table 4). Single-ended conversion in scan
mode on AIN_/REF is ignored by internal limiter, which
sets the highest available channel at AIN2 or AIN10.
Internal Reference
The internal reference is 4.096V for the MAX11606/
MAX11608/MAX11610 and 2.048V for the MAX11607/
MAX11609/MAX11611. SEL1 of the setup byte controls
whether AIN_/REF is used for an analog input or a refer-
ence (Table 6). When AIN_/REF is configured to be an
internal reference output (SEL[2:1] = 11), decouple
AIN_/REF to GND with a 0.1F capacitor and a 2k
Ω series
resistor (see the
Typical Operating Circuit). Once powered
up, the reference always remains on until reconfigured.
The internal reference requires 10ms to wake up and is
accessed using SEL0 (Table 6). When in shutdown, the
internal reference output is in a high-impedance state. The
reference should not be used to supply current for exter-
nal circuitry. The internal reference does not require an
SEL2
SEL1
SEL0
REFERENCE
VOLTAGE
AIN_/REF
(MAX11606/
MAX11607/
MAX11610/
MAX11611)
REF
(MAX11608/
MAX11609)
INTERNAL
REFERENCE STATE
00
X
VDD
Analog input
Not connected
Always off
0
1
X
External reference
Reference input
Always off
1
0
Internal reference
Analog input
Not connected
Always off
1
0
1
Internal reference
Analog input
Not connected
Always on
1
0
Internal reference
Reference output
Always off
1
Internal reference
Reference output
Always on
Table 6. Reference Voltage, AIN_/REF, and REF Format
OUTPUT CODE
FULL-SCALE
TRANSITION
11 . . . 111
11 . . . 110
11 . . . 101
00 . . . 011
00 . . . 010
00 . . . 001
00 . . . 000
12
3
0
FS
FS - 3/2 LSB
FS = VREF
ZS = GND
INPUT VOLTAGE (LSB)
MAX11606–
MAX11611
1 LSB =
VREF
1024
Figure 12. Unipolar Transfer Function
X = Don’t care.
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