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PDF AD5660 Data sheet ( Hoja de datos )

Número de pieza AD5660
Descripción 12-/14-/16-Bit nanoDAC
Fabricantes Analog Devices 
Logotipo Analog Devices Logotipo



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Data Sheet
Single, 12-/14-/16-Bit nanoDAC with
5 ppm/°C On-Chip Reference in SOT-23
AD5620/AD5640/AD5660
FEATURES
Low power, single nanoDACs
AD5660: 16 bits
AD5640: 14 bits
AD5620: 12 bits
12-bit accuracy guaranteed
On-chip, 1.25 V/2.5 V, 5 ppm/°C reference
Tiny 8-lead SOT-23, MSOP, and LFCSP packages
Power-down to 480 nA @ 5 V, 200 nA @ 3 V
3 V/5 V single power supply
Guaranteed 16-bit monotonic by design
Power-on reset to zero/midscale
3 power-down functions
Serial interface with Schmitt-triggered inputs
Rail-to-rail operation
SYNC interrupt facility
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
PRODUCT HIGHLIGHTS
1. 12-/14-/16-bit nanoDAC—12-bit accuracy guaranteed.
2. On-chip, 1.25 V/2.5 V, 5 ppm/°C reference.
3. Available in 8-lead SOT-23, MSOP, and LFCSP packages.
4. Power-on reset to 0 V or midscale.
5. 10 µs settling time.
Table 1. Related Device
Part No.
Description
AD5662
2.7 V to 5.5 V, 16-bit DAC in SOT-23, LFCSP, and
MSOP, external reference
FUNCTIONAL BLOCK DIAGRAM
VREFOUT GND
VDD
POWER-ON
RESET
1.25/2.5V
REF
AD5620/AD5640/AD5660
VFB
DAC
REGISTER
REF(+)
16-BIT
DAC
OUTPUT
BUFFER
VOUT
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
SYNC SCLK DIN
Figure 1.
GENERAL DESCRIPTION
The AD5620/AD5640/AD5660, members of the nanoDAC™
family of devices, are low power, single, 12-/14-/16-bit, buffered
voltage-out DACs and are guaranteed monotonic by design.
The AD5620/AD5640/AD5660-1 parts include an internal,
1.25 V, 5 ppm/°C reference, giving a full-scale output voltage
range of 2.5 V. The AD5620/AD5640/AD5660-2-3 parts include
an internal, 2.5 V, 5 ppm/°C reference, giving a full-scale output
voltage range of 5 V. The reference associated with each part is
available at the VREFOUT pin.
The parts incorporate a power-on reset circuit to ensure that the
DAC output powers up to 0 V (AD5620/AD5640/AD5660-1-2)
or midscale (AD5620-3 and AD5660-3) and remains there until
a valid write takes place. The parts contain a power-down
feature that reduces the current consumption of the device to
480 nA at 5 V and provides software-selectable output loads
while in power-down mode. The power consumption is
2.5 mW at 5 V, reducing to 1 µW in power-down mode.
The AD5620/AD5640/AD5660 on-chip precision output
amplifier allows rail-to-rail output swing to be achieved. For
remote sensing applications, the output amplifier’s inverting
input is available to the user. The AD5620/AD5640/AD5660 use
a versatile 3-wire serial interface that operates at clock rates up
to 30 MHz and is compatible with standard SPI®, QSPI™,
MICROWIRE™, and DSP interface standards.
Rev. G
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2005–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

1 page




AD5660 pdf
Data Sheet
AD5620/AD5640/AD5660
AD5620/AD5640/AD5660-1
VDD1 = 2.7 V to 3.3 V, RL = 2 kΩ to GND, CL = 200 pF to GND, CREFOUT = 100 nF; all specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
STATIC PERFORMANCE3
AD5660
Resolution
Relative Accuracy
Differential Nonlinearity
AD5640
Resolution
Relative Accuracy
Differential Nonlinearity
AD5620
Resolution
Relative Accuracy
Differential Nonlinearity
Zero-Code Error
Offset Error
Full-Scale Error
Gain Error
Zero-Code Error Drift
Gain Temperature Coefficient
DC Power Supply Rejection Ratio
OUTPUT CHARACTERISTICS4
Output Voltage Range
Output Voltage Settling Time
Slew Rate
Capacitive Load Stability
Output Noise Spectral Density
Output Noise (0.1 Hz to 10 Hz)
Digital-to-Analog Glitch Impulse
Digital Feedthrough
DC Output Impedance
Short-Circuit Current
Power-Up Time
REFERENCE OUTPUT
Output Voltage
Reference TC4
Output Impedance
A Grade2 B Grade2 C Grade2 Unit
Conditions/Comments
16
±32
±1
14
±8
±0.5
12
±6
±0.25
2
8
±9
±0.15
±0.85
±0.85
±2
±2.5
−60
0
VDD
8
10
1.5
2
10
80
20
5
0.1
0.5
30
6
1.247
1.253
±10
7.5
16
±16
±1
14
±4
±0.5
12
±1
±0.25
2
8
±9
±0.15
±0.85
±0.85
±2
±2.5
−60
0
VDD
8
10
1.5
2
10
80
20
5
0.1
0.5
30
6
1.247
1.253
±10
7.5
16
±16
±1
14
±4
±0.5
12
±1
±0.25
2
8
±9
±0.15
±0.85
±0.85
±2
±2.5
−60
VDD
8
10
1.5
2
10
80
20
5
0.1
0.5
30
6
1.247
1.253
±5
±15
7.5
Bits min
LSB max
LSB max
Guaranteed monotonic by design
Bits min
LSB max
LSB max
Guaranteed monotonic by design
Bits min
LSB max
LSB max
mV typ
mV max
mV max
% FSR typ
% FSR max
% FSR max
µV/°C typ
ppm typ
dB typ
Guaranteed monotonic by design
All 0s loaded to DAC register
All 1s loaded to DAC register
Of FSR/°C
DAC code = midscale; VDD = 3 V ± 10%
V min
V max
µs typ
µs max
V/µs typ
nF typ
nF typ
nV/√Hz typ
µV p-p typ
nV-s typ
nV-s typ
Ω typ
mA typ
µs typ
¼ to ¾ scale change settling to ±2 LSB
RL = 2 kΩ; 0 pF < CL < 200 pF
¼ to ¾ scale
RL = ∞
RL = 2 kΩ
DAC code = midscale, 10 kHz
DAC code = midscale
1 LSB change around major carry
VDD = 3 V
Coming out of power-down mode; VDD = 3 V
V min
V max
ppm/°C typ
ppm/°C max
kΩ typ
At ambient
Rev. G | Page 5 of 28

5 Page





AD5660 arduino
Data Sheet
10
VDD = 3V
8 VREFOUT = 1.25V
TA = 25°C
6
4
2
0
–2
–4
–6
–8
–10
CODE
Figure 12. INL—AD5660-1
4
VDD = 3V
3
VREFOUT = 1.25V
TA = 25°C
2
1
0
–1
–2
–3
–4
CODE
Figure 13. INL—AD5640-1
AD5620/AD5640/AD5660
1.0
VDD = 3V
0.8 VREFOUT = 1.25V
TA = 25°C
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
CODE
Figure 15. DNL—AD5660-1
0.5
VDD = 3V
0.4 VREFOUT = 1.25V
TA = 25°C
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
CODE
Figure 16. DNL—AD5640-1
1.0
VDD = 3V
0.8 VREFOUT = 1.25V
TA = 25°C
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 14. INL—AD5620-1
0.20
0.15
VDD = 3V
VREFOUT = 1.25V
TA = 25°C
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0
500 1000 1500 2000 2500 3000 3500 4000
CODE
Figure 17. DNL—AD5620-1
Rev. G | Page 11 of 28

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