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参数资料
型号： MAX1035EUP+T
厂商： Maxim Integrated Products
文件页数： 11/31页
文件大小： 0K
描述： IC ADC 14BIT SER 115KSPS 20TSSOP
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
位数： 14
采样率（每秒）： 115k
数据接口： MICROWIRE?，串行，SPI?
转换器数目： 1
功率耗散（最大）： 879mW
电压电源： 模拟和数字
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 20-TSSOP（0.173"，4.40mm 宽）
供应商设备封装： 20-TSSOP
包装： 带卷 (TR)
输入数目和类型： 4 个单端，单极；4 个单端，双极；2 个差分，单极；2 个差分，双极
Digital Interface
The MAX1034/MAX1035 feature a serial interface that is
compatible with SPI/QSPI and MICROWIRE devices.
DIN, DOUT, SCLK, CS, and SSTRB facilitate bidirection-
al communication between the MAX1034/MAX1035 and
the master at SCLK rates up to 10MHz (internal clock
mode, mode 2), 3.67MHz (external clock mode, mode
0), or 4.39MHz (external acquisition mode, mode 1).
The master, typically a microcontroller, should use the
CPOL = 0, CPHA = 0, SPI transfer format, as shown in
the timing diagrams of Figures 2, 3, and 4.
The digital interface is used to:
Select single-ended or true-differential input channel
configurations
Select the unipolar or bipolar input range
Select the mode of operation:
External clock (mode 0)
External acquisition (mode 1)
Internal clock (mode 2)
Reset (mode 4)
Partial power-down (mode 6)
Full power-down (mode 7)
Initiate conversions and read results
Chip Select (
CS)
CS enables communication with the MAX1034/MAX1035.
When CS is low, data is clocked into the device from DIN
on the rising edge of SCLK and data is clocked out of
DOUT on the falling edge of SCLK. When CS is high,
activity on SCLK and DIN is ignored and DOUT is high
impedance allowing DOUT to be shared with other
peripherals. SSTRB is never high impedance and there-
fore cannot be shared with other peripherals.
Serial-Strobe Output (SSTRB)
As shown in Figures 3 and 4, the SSTRB transitions high
to indicate that the ADC has completed a conversion
and results are ready to be read by the master. SSTRB
remains low in the external clock mode (Figure 2) and
consequently may be left unconnected. SSTRB is driven
high or low regardless of the state of CS, therefore
SSTRB cannot be shared with other peripherals.
MAX1034/MAX1035
8-/4-Channel, ±VREF Multirange Inputs,
Serial 14-Bit ADCs
______________________________________________________________________________________
19
001
010
011
100
101
110
111
0
-VREF/2
-3/4 VREF
-VREF
+VREF
+3/4 VREF
+VREF/2
+VREF/4
-VREF/4
EACH INPUT IS FAULT TOLERANT TO
±6V.
(CH_)
-
AGND1
(V)
INPUT RANGE SELECTION BITS, R[2:0]
FSR
=
V
REF
/
2
FSR
=
V
REF
/
2
FSR
=
V
REF
/
2
FSR
=
V
REF
FSR
=
V
REF
FSR
=
V
REF
FSR
=
2
x
V
REF
Figure 7. Single-Ended Input Voltage Ranges
001
010
011
100
101
110
111
-VREF
-3/2 VREF
-2 x VREF
+VREF
+3/2 VREF
+VREF
+VREF/2
-VREF/2
EACH INPUT IS FAULT TOLERANT TO
±6V.
(CH_+)
-
(CH_-)
(V)
INPUT RANGE SELECTION BITS, R[2:0]
0
FSR
=
V
REF
FSR
=
2
x
V
REF
FSR
=
4
x
V
REF
Figure 8. Differential Input Voltage Ranges
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