MAX1030BCTI-T Maxim Integrated, MAX1030BCTI-T Datasheet - Page 15

• Manufacturer Part Number: MAX1030BCTI-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1030BCTI-T

• Number Of Channels: 16/8
• Architecture: SAR
• Conversion Rate: 300 KSPs
• Resolution: 10 bit
• Input Type: Single-Ended/Differential
• Snr: 70 dB
• Interface Type: SPI
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN EP
• Maximum Power Dissipation: 762 mW
• Minimum Operating Temperature: 0 C
• Number Of Converters: 1
• Voltage Reference: 4.096 V

The MAX1026/MAX1028/MAX1030 power up with all
blocks in shutdown, including the reference. All registers
power up in state 00000000, except for the setup regis-
ter, which powers up in clock mode 10 (CKSEL1 = 1).
The MAX1026/MAX1028/MAX1030 perform tempera-
ture measurements with an internal diode-connected
transistor. The diode bias current changes from 68μA
to 4μA to produce a temperature-dependent bias volt-
age difference. The second conversion result at 4μA is
subtracted from the first at 68μA to calculate a digital
value that is proportional to absolute temperature. The
output data appearing at DOUT is the above digital
code minus an offset to adjust from Kelvin to Celsius.
Table 4. Unipolar Mode Register (Addressed Through Setup Register)
Table 5. Bipolar Mode Register (Addressed Through Setup Register)
BIT NAME
BIT NAME
UCH10/11
UCH12/13
UCH14/15
BCH10/11
BCH12/13
BCH14/15
UCH0/1
UCH2/3
UCH4/5
UCH6/7
UCH8/9
BCH0/1
BCH2/3
BCH4/5
BCH6/7
BCH8/9
7 (MSB)
7 (MSB)
0 (LSB)
0 (LSB)
BIT
BIT
6
5
4
3
2
1
6
5
4
3
2
1
______________________________________________________________________________________
Temperature Measurements
Set to 1 to configure AIN0 and AIN1 for unipolar differential conversion.
Set to 1 to configure AIN2 and AIN3 for unipolar differential conversion.
Set to 1 to configure AIN4 and AIN5 for unipolar differential conversion.
Set to 1 to configure AIN6 and AIN7 for unipolar differential conversion.
Set to 1 to configure AIN8 and AIN9 for unipolar differential conversion (MAX1028/MAX1030 only).
Set to 1 to configure AIN10 and AIN11 for unipolar differential conversion (MAX1028/MAX1030 only).
Set to 1 to configure AIN12 and AIN13 for unipolar differential conversion (MAX1030 only).
Set to 1 to configure AIN14 and AIN15 for unipolar differential conversion (MAX1030 only).
Set to 1 to configure AIN0 and AIN1 for bipolar differential conversion.
Set to 1 to configure AIN2 and AIN3 for bipolar differential conversion.
Set to 1 to configure AIN4 and AIN5 for bipolar differential conversion.
Set to 1 to configure AIN6 and AIN7 for bipolar differential conversion.
Set to 1 to configure AIN8 and AIN9 for bipolar differential conversion (MAX1028/MAX1030 only).
Set to 1 to configure AIN10 and AIN11 for bipolar differential conversion (MAX1028/MAX1030 only).
Set to 1 to configure AIN12 and AIN13 for bipolar differential conversion (MAX1030 only).
Set to 1 to configure AIN14 and AIN15 for bipolar differential conversion (MAX1030 only).
Power-Up Default State
Temp Sensor, Internal Reference
10-Bit 300ksps ADCs with FIFO,
The reference voltage used for the temperature mea-
surements is derived from the internal reference source
to ensure a resolution of 1/8 of a degree.
Figures 4–7 illustrate the conversion timing for the
MAX1026/MAX1028/MAX1030. The 10-bit conversion
result is output in MSB-first format with 4 leading zeros
and 2 trailing sub-bits. The 12-bit temperature mea-
surement is output with 4 leading zeros. DIN data is
latched into the serial interface on the rising edge of
SCLK. Data on DOUT transitions on the falling edge of
SCLK. Conversions in clock modes 00 and 01 are initiat-
ed by CNVST. Conversions in clock modes 10 and 11
are initiated by writing an input data byte to the conver-
sion register. Data is binary for unipolar mode and two’s
complement for bipolar mode.
FUNCTION
FUNCTION
Output Data Format
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