参数资料
型号: MAX1167BCEE
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: ADC
英文描述: TRANS NPN 20VCEO 1A TO-92L
中文描述: 4-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封装: QSOP-16
文件页数: 16/30页
文件大小: 462K
代理商: MAX1167BCEE
M
Power-Down Modes
Table 5 shows the MAX1167/MAX1168 power-down
modes. Three internal reference modes and one exter-
nal reference mode are available. Select power-down
modes by writing to bits 2 and 1 in the command/con-
figuration/control register. The MAX1167/MAX1168
enter the selected power-down mode on the rising
edge of
CS
.
The internal reference stays on when
CS
is pulled high,
if bits 2 and 1 are set to zero. This mode allows for the
fastest turn-on time.
Setting bit 2 = 0 and bit 1 = 1 turns both the reference
and reference buffer off when
CS
is brought high. This
mode achieves the lowest supply current. The refer-
ence and buffer wake up on the falling edge of
CS
when in SPI/QSPI/MICROWIRE mode and on the falling
edge of DSPR when in DSP mode. Allow 5ms for the
internal reference to rise and settle when powering up
from a complete shutdown (V
REF
= 0, C
REF
= 1μF).
The internal reference stays on and the buffer is shut off
on the rising edge of
CS
when bit 2 = 1 and bit 1 = 0.
The MAX1167/MAX1168 enter this mode on the rising
edge of
CS
. The buffer wakes up on the falling edge of
CS
when in SPI/QSPI/MICROWIRE mode and on the ris-
ing edge of DSPR when in DSP mode. Allow 5ms for
V
REF
to settle when powering up from a complete shut-
down (V
REF
= 0, C
REF
= 1μF). V
REFCAP
is always equal
to +4.096V in this mode.
Set both bit 2 and bit 1 to 1 to turn off the reference and
reference buffer to allow connection of an external ref-
erence. Using an external reference requires no extra
wake-up time.
Operating Modes
External Clock 8-Bit-Wide Data-Transfer Mode
(MAX1167 and MAX1168)
Force DSPR high and DSEL low (MAX1168) for SPI/
QSPI/MICROWIRE interface mode. The falling edge of
CS
wakes the analog circuitry and allows SCLK to clock
in data. Ensure the duty cycle on SCLK is between 45%
and 55% when operating at 4.8MHz (the maximum
clock frequency). For lower clock frequencies, ensure
the minimum high and low times are at least 93ns.
External-clock-mode conversions with SCLK rates less
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
16
______________________________________________________________________________________
CS
SCLK
DIN
DOUT
t
CSW
t
CSS
t
CL
t
DS
t
DH
t
DV
t
CH
t
DO
t
TR
t
CSH
t
CP
Figure 8. Detailed SPI Interface Timing
COMPLETE CONVERSION SEQUENCE
CONVERSION 0
CONVERSION 1
POWERED UP
POWERED UP POWERED DOWN
DOUT
CS
Figure 9. Shutdown Sequence
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MAX1167BCEE+ 功能描述:模数转换器 - ADC 16-Bit 4Ch 200ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1167BCEE+T 功能描述:模数转换器 - ADC 16-Bit 4Ch 200ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1167BCEE-T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1167BEEE 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1167BEEE+ 功能描述:模数转换器 - ADC 16-Bit 4Ch 200ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32