MAX1046BETX+T Maxim Integrated Products, MAX1046BETX+T Datasheet - Page 28

• Manufacturer Part Number: MAX1046BETX+T
• Description: IC ADC/DAC 10BIT 36-TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: ADC, DACr

Specifications of MAX1046BETX+T

• Resolution (bits): 10 b
• Sampling Rate (per Second): 225k
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Table 18. DAC Power-Up and Power-Down Commands
Figures 6–9 illustrate the conversion timing for the
MAX1040/MAX1042/MAX1046/MAX1048. All 10-bit con-
version results are output in 2-byte format, MSB first,
with four leading zeros and the LSB followed by 2 sub-
bits. Data appears on DOUT on the falling edges of
SCLK. Data is binary for unipolar mode and two’s com-
plement for bipolar mode and temperature results. See
Figures 3, 4, and 5 for input/output and temperature-
transfer functions.
Figure 3 shows the unipolar transfer function for single-
ended or differential inputs. Figure 4 shows the bipolar
28
C3 C2 C1 C0 X
1
1
1
1
1
CONTROL
BITS
1
1
1
1
1
______________________________________________________________________________________
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X — — — — 0
X — — — — 0
X — — — — 1
X — — — — 0
X — — — — 1
ADC Transfer Functions
DATA BITS
Output-Data Format
D3 D2 D1 D0
0
1
0
0
1
1
0
0
0
1
X
X
X
X
X
DESCRIPTION
Power-Down 1
Power-Down 2
Power-Down 3
Power-Down 4
Power-Up
transfer function for differential inputs. Code transitions
occur halfway between successive-integer LSB values.
Output coding is binary, with 1 LSB = V
unipolar and bipolar operation, and 1 LSB = +0.125°C
for temperature measurements. Bipolar true-differential
results and temperature-sensor results are available in
two’s complement format, while all others are in binary.
See Tables 6, 7, and 8 for details on which setting
(unipolar or bipolar) takes precedence.
In unipolar mode, AIN+ can exceed AIN- by up to
V
other by up to V
REF1
. In bipolar mode, either input can exceed the
Power up individual DAC buffers indicated by data
in DAC0 through DAC3. A one indicates the DAC
output is connected and active. A zero does not
affect the DAC’s present state.
Power down individual DAC buffers indicated by
data in DAC0 through DAC3. A one indicates the
DAC output is disconnected and high impedance.
A zero does not affect the DAC’s present state.
Power down individual DAC buffers indicated by
data in DAC0 through DAC3. A one indicates the
DAC output is disconnected and pulled to AGND
with a 1k Ω resistor. A zero does not affect the DAC’s
present state.
Power down individual DAC buffers indicated by
data in DAC0 through DAC3. A one indicates the
DAC output is disconnected and pulled to AGND
with a 100k Ω resistor. A zero does not affect the
DAC’s present state.
Power down individual DAC buffers indicated by
data in DAC0 through DAC3. A one indicates the
DAC output is disconnected and pulled to REF1 with
a 100k Ω resistor. A zero does not affect the DAC’s
present state.
REF1
/2.
FUNCTION
REF1
/ 1024 for