MAX5364EUT+T Maxim Integrated Products, MAX5364EUT+T Datasheet - Page 7

• Manufacturer Part Number: MAX5364EUT+T
• Description: IC DAC 6BIT LP 3WIRE SER SOT23-6
• Manufacturer: Maxim Integrated Products

Specifications of MAX5364EUT+T

• Settling Time: 20µs
• Number Of Bits: 6
• Data Interface: Serial
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 696mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX5363/MAX5364/MAX5365 voltage-output, 6-bit
DACs offer full 6-bit performance with less than 1LSB
integral nonlinearity error and less than 1LSB differen-
tial nonlinearity error, ensuring monotonic performance.
The devices use a simple 3-wire, SPI/QSPI/ MICROWIRE-
compatible serial interface that operates up to 10MHz.
The MAX5363/MAX5364/MAX5365 include an internal
reference, an output buffer, and three low-current shut-
down modes, making these devices ideal for low-
power, highly integrated applications. Figure 1 shows
the devices’ functional diagram.
(V
DD
PIN
1
2
3
4
5
6
= +3.0V (MAX5363), V
Low-Cost, Low-Power, 6-Bit DACs with 3-Wire
AC-COUPLED
NAME
20mV/div
SCLK
GND
OUT
V
DIN
CS
3V/div
DD
OUT
CS
_______________________________________________________________________________________
0 x 1F TO 0 x 20
DAC Voltage Output
Ground
Power-Supply Input
Serial Data Input
Serial Clock Input
Chip-Select Input
Detailed Description
DD
OUTPUT SETTLING
= +5.0V (MAX5364/MAX5365), T
1/4LSB STEP UP
MAX5363
2µs/div
Pin Description
FUNCTION
Typical Operating Characteristics (continued)
Serial Interface in SOT23
A
= +25°C, unless otherwise noted.)
AC-COUPLED
The MAX5363/MAX5364MAX5365 employ a current-
steering DAC topology as shown in Figure 2. At the
core of the DAC is a reference voltage-to-current con-
verter (V/I) that generates a reference current. This current
is mirrored to 63 equally weighted current sources.
DAC switches control the outputs of these current mirrors
so that only the desired fraction of the total current-mirror
currents is steered to the DAC output. The current is
then converted to a voltage across a resistor, and this
voltage is buffered by the output buffer amplifier.
Table 1 shows the relationship between the DAC code
and the analog output voltage. The 6-bit DAC code is
binary unipolar with 1LSB = (V
MAX5364 have a full-scale output voltage of (+2V - 1LSB)
and (+4V - 1LSB), respectively, set by the internal refer-
ences. The MAX5365 has a full-scale output voltage of
(0.9
The DAC voltage output is an internally buffered unity-
gain follower that slews up to ±0.4V/µs. The output can
swing from 0 to full scale. With a 1/4FS to 3/4FS output
transition, the amplifier outputs typically settle to
1/2LSB in less than 5µs when loaded with 10kΩ in par-
allel with 50pF. The buffer amplifiers are stable with any
20mV/div
3V/div
OUT
✕
CS
V
0 x 20 TO 0 x 1F
DD
- 1LSB).
1/4LSB STEP DOWN
OUTPUT SETTLING
MAX5363
2µs/div
REF
/64). The MAX5363/
Analog Section
Output Voltage
Output Buffer
7