AD5680 datasheet(3/20 Pages) AD

부품명	AD5680

상세설명	5 V 18-Bit nanoDAC in a SOT-23

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AD5680

Rev. 0 | Page 3 of 20

SPECIFICATIONS

VDD = 4.5 V to 5.5 V; RL = 2 kΩ to GND; CL = 200 pF to GND; VREF = VDD; all specifications TMIN to TMAX, unless otherwise noted.

Table 1.

B Grade

B Version1

Parameter

Min

Typ

Max

Unit

Conditions/Comments

STATIC PERFORMANCE2

Resolution

18

Bits

Relative Accuracy

±32

±64

LSB

Differential Nonlinearity3

±1

LSB

Measured in 50 Hz system bandwidth

±2

LSB

Measured in 300 Hz system bandwidth

Zero-Code Error

2

10

mV

All 0s loaded to DAC register

Full-Scale Error

−0.2

−1

% FSR

All 1s loaded to DAC register

Offset Error

±10

mV

Gain Error

±1.5

% FSR

Zero-Code Error Drift

±2

μV/°C

Gain Temperature Coefficient

±2.5

ppm

Of FSR/°C

DC Power Supply Rejection Ratio

−100

dB

DAC code = midscale; VDD = 5 V ± 10%

OUTPUT CHARACTERISTICS3

Output Voltage Range

0

VDD

V

Output Voltage Settling Time

80

85

μs

¼ to ¾ scale change settling to ±8 LSB

RL = 2 kΩ; 0 pF < CL < 200 pF

Slew Rate

1.5

V/μs

¼ to ¾ scale

Capacitive Load Stability

2

nF

RL = ∞

10

nF

RL = 2 kΩ

Output Noise Spectral Density4

80

nV/√Hz

DAC code = midscale, 10 kHz

Output Noise (0.1 Hz to 10 Hz)4

25

μV p-p

DAC code = midscale

Total Harmonic Distortion (THD)4

−80

dB

VREF = 2 V ± 300 mV p-p, f = 200 Hz

Digital-to-Analog Glitch Impulse

5

nV-s

1 LSB change around major carry

Digital Feedthrough

0.2

nV-s

DC Output Impedance

0.5

Ω

Short-Circuit Current4

30

mA

VDD = 5 V

REFERENCE INPUT

Reference Current

40

75

μA

VREF = VDD = 5 V

Reference Input Range5

0.75

VDD

V

Reference Input Impedance

125

kΩ

LOGIC INPUTS

Input Current

±2

μA

All digital inputs

VINL, Input Low Voltage

0.8

V

VDD = 5 V

VINH, Input High Voltage

2

V

VDD = 5 V

Pin Capacitance

3

pF

POWER REQUIREMENTS

VDD

4.5

5.5

V

All digital inputs at 0 V or VDD

IDD (Normal Mode)

DAC active and excluding load current

VDD = 4.5 V to 5.5 V

325

450

μA

VIH = VDD and VIL = GND

POWER EFFICIENCY

IOUT/IDD

85

%

ILOAD = 2 mA, VDD = 5 V

1 Temperature range for B version is −40°C to +105°C, typical at +25°C.

2 DC specifications tested with the outputs unloaded, unless otherwise stated. Linearity calculated using a reduced code range of 2048 to 260096.

3 Guaranteed by design and characterization; not production tested.

4 Output unloaded.

5 Reference input range at ambient where maximum DNL specification is achievable.

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	AD5062	464Kb / 20P	Fully Accurate 16-Bit VOUT nanoDAC SPI Interface 2.7 V to 5.5 V, in an SOT-23 REV. A

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