MAX1075ETC-T Maxim Integrated, MAX1075ETC-T Datasheet - Page 10

• Manufacturer Part Number: MAX1075ETC-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1075ETC-T

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 1.8 MSPs
• Resolution: 10 bit
• Input Type: Differential
• Snr: No
• Interface Type: 3-Wire, Microwire, QSPI, Serial, SPI
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 85 C
• Package / Case: TQFN EP
• Maximum Power Dissipation: 1349 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: External

power-down mode. Then repeat the same sequence to
enter full power-down mode (see Figure 7). Drive CNVST
low, and allow at least 14 SCLK cycles to elapse before
driving CNVST high to exit full power-down mode. In par-
tial/full power-down mode, maintain a logic low or a logic
high on SCLK to minimize power consumption.
1.8Msps, Single-Supply, Low-Power,
True-Differential, 10-Bit ADCs
Figure 5. Interface-Timing Sequence
Figure 6. SPI Interface—Partial Power-Down Mode
Figure 7. SPI Interface—Full Power-Down Mode
10
(MODE)
______________________________________________________________________________________
CNVST
DOUT
SCLK
CNVST
DOUT
SCLK
HIGH IMPEDANCE
CNVST
MODE
DOUT
SCLK
t
SETUP
1ST SCLK RISING EDGE
0
0
0
1ST SCLK RISING EDGE
1
0
NORMAL
2
0
FIRST 8-BIT TRANSFER
D9
3
0
ONE 8-BIT TRANSFER
NORMAL
4
D9
D8
D9
D8
D7
D8
1ST SCLK RISING EDGE
POWER-MODE SELECTION WINDOW
D7
D7
D6
D6
D6
D5
8
D5
D5
PPD
Figure 8 shows the unipolar transfer function for the
MAX1072. Figure 9 shows the bipolar transfer function for
the MAX1075. The MAX1072 output is straight binary,
while the MAX1075 output is two’s complement.
DOUT GOES HIGH IMPEDANCE ONCE CNVST GOES HIGH
CNVST MUST GO HIGH AFTER THE 3RD BUT BEFORE THE 14TH SCLK RISING EDGE
D4
0
D3
DOUT ENTERS TRI-STATE ONCE CNVST GOES HIGH
0
EXECUTE PARTIAL POWER-DOWN TWICE
D2
0
D1
SECOND 8-BIT TRANSFER
D0
RECOVERY
0
PPD
14
S1
0
t
ACQUIRE
S0
16
0
Transfer Function
CONTINUOUS-CONVERSION
SELECTION WINDOW
0
0
FPD