AD5641AKSZ-500RL7 Analog Devices Inc, AD5641AKSZ-500RL7 Datasheet - Page 16

• Manufacturer Part Number: AD5641AKSZ-500RL7
• Description: IC DAC 14BIT V-OUT SC70-6
• Manufacturer: Analog Devices Inc
• Series: nanoDAC™r

Specifications of AD5641AKSZ-500RL7

• Data Interface: SPI™
• Settling Time: 6µs
• Number Of Bits: 14
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 550µW
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-6, SC-88, SOT-363
• Resolution (bits): 14bit
• Sampling Rate: 1.7MSPS
• Input Channel Type: Serial
• Supply Voltage Range - Analog: 2.7V To 5.5V
• Supply Current: 75µA
• Digital Ic Case Style: SC-70
• Number Of Channels: 1
• Resolution: 14b
• Conversion Rate: 1.7MSPS
• Interface Type: Serial (3-Wire, SPI, QSPI, Microwire)
• Single Supply Voltage (typ): 3.3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Architecture: Resistor-String
• Power Supply Requirement: Single
• Output Type: Voltage
• Integral Nonlinearity Error: ±16LSB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 6
• Package Type: SC-70
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: AD5641AKSZ-500RL7TR; AD5641AKSZ500RLTR; AD5641AKSZ500RLTR

AD5641
APPLICATIONS
CHOOSING A REFERENCE AS POWER SUPPLY FOR
THE AD5641
The AD5641 comes in a tiny SC70 package with less than
100 μA supply current. Because of this, the choice of reference
depends on the application requirement. For space-saving
applications, the
has excellent drift at 9 ppm/°C (3 ppm/°C in the R-8 package).
It also provides very good noise performance at 3.4 μV p-p in
the 0.1 Hz to 10 Hz range.
Because the supply current required by the AD5641 is
extremely low, the parts are ideal for low supply applications.
The
It requires less than 100 μA of quiescent current and can,
therefore, drive multiple DACs in one system, if required. It
also provides very good noise performance at 8 μV p-p in the
0.1 Hz to 10 Hz range.
Table 7 lists some recommended precision references for use as
supplies to the AD5641.
Table 7. Precision References for Use with AD5641
Part No.
ADR435
ADR425
ADR02
ADR02
ADR395
INTERFACE
ADR395
SERIAL
3-WIRE
Initial
Accuracy
(mV max)
±2
±2
±3
±3
±5
Figure 42. ADR395 as Power Supply to AD5641
voltage reference is recommended in this case.
7V
SYNC
SCLK
SDIN
ADR02
ADR395
is available in an SC70 package and
Temperature
Drift
(ppm/°C max)
3 (R-8)
3 (R-8)
3 (R-8)
3 (SC70)
9 (TSOT-23)
5V
AD 5641
0.1 Hz to 10 Hz
Noise (μV p-p typ)
8
3.4
10
10
8
V
OUT
= 0V TO 5V
Rev. C | Page 16 of 20
BIPOLAR OPERATION USING THE AD5641
The AD5641 has been designed for single-supply operation,
but a bipolar output range is also possible using the circuit in
Figure 43. The circuit in Figure 43 gives an output voltage
range of ±5 V. Rail-to-rail operation at the amplifier output is
achievable using an
The output voltage for any input code can be calculated as
where D represents the input code in decimal (0 – 16384).
With V
This is an output voltage range of ±5 V with 0x0000 corre-
sponding to a –5 V output, and 0x3FFF corresponding to a
+5 V output.
+5V
V
V
OUT
OUT
DD
= 5 V, R1 = R2 = 10 kΩ,
10μF
=
=
Figure 43. Bipolar Operation with the AD5641
⎛
⎜ ⎜
⎝
⎡
⎢
⎢
⎣
V
10
16
DD
,
×
384
0.1μF
×
AD820
D
⎛
⎜ ⎜
⎝
⎞
⎟ ⎟
⎠
16
−
V
,
D
DD
384
5
or
INTERFACE
R1 = 10kΩ
V
AD5641
3-WIRE
SERIAL
⎞
⎟ ⎟
⎠
OP295
×
⎛
⎜
⎝
R1
V
OUT
as the output amplifier.
R1
+
R2
R2 = 10kΩ
AD820/
OP295
⎞
⎟
⎠
+5V
–5V
−
V
DD
×
⎛
⎜
⎝
R2
R1
+5V
⎞
⎟
⎠
⎤
⎥
⎥
⎦