MAX1064 Maxim Integrated Products, MAX1064 Datasheet - Page 14

• Manufacturer Part Number: MAX1064
• Description: (MAX1060 / MAX1064) 10-Bit ADCs
• Manufacturer: Maxim Integrated Products

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400ksps, +5V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
Input (control byte) and output data are multiplexed on a
tri-state parallel interface. This parallel interface (I/O) can
easily be interfaced with standard µPs. Signals CS, WR,
and RD control the write and read operations. CS repre-
sents the chip-select signal, which enables a µP to
address the MAX1060/MAX1064 as an I/O port. When
high, CS disables the CLK, WR, and RD inputs and
forces the interface into a high-impedance (high-Z) state.
Table 2. Control Byte Format
Table 3. Channel Selection for Single-Ended Operation (SGL/DIF = 1)
*Channels CH4
Table 4. Channel Selection for Pseudo-Differential Operation (SGL/DIF = 0)
*Channels CH4
14
D7 (MSB)
A2
A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
______________________________________________________________________________________
PD1
A1
–
–
0
0
1
1
0
0
1
1
CH7 apply to MAX1060 only.
CH7 apply to MAX1060 only.
A1
0
0
1
1
0
0
1
1
PD0
D6
A0
0
1
0
1
0
1
0
1
A0
0
1
0
1
0
1
0
1
CH0
ACQMOD
+
Digital Interface
D5
CH0
+
-
CH1
+
CH1
SGL/DIF
+
-
D4
CH2
+
CH2
+
-
CH3
The control byte is latched into the device on pins D7–
D0 during a write command. Table 2 shows the control
byte format.
The output format for the MAX1060/MAX1064 is binary in
unipolar mode and two’s complement in bipolar mode.
When reading the output data, CS and RD must be low.
When HBEN = 0, the lower 8 bits are read. With HBEN =
1, the upper 2 bits are available and the output data bits
D7–D2 are set either low in unipolar mode or to the value
of the MSB in bipolar mode (Table 5).
+
UNI/BIP
D3
CH3
+
-
CH4*
+
CH4*
+
-
D2
A2
CH5*
+
CH5*
+
CH6*
-
+
D1
A1
CH6*
CH7*
+
-
Output Format
+
Input Format
D0 (LSB)
A0
CH7*
COM
+
-
-
-
-
-
-
-
-
-