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AD2S1200YST

12-Bit R/D Converter with Reference Oscillator

Analog Devices 

AD2S1200

Parameter

Min

FAULT DETECTION BLOCK (CONT.)

DOS

Sin/Cos Threshold

4.0

Sin/Cos Mismatch

Angular Accuracy (Worst Case)

Angular Latency (Worst Case)

Time Latency

LOT

Tracking Threshold

Time Latency

Hysteresis

4

VOLTAGE REFERENCE

REFOUT

2.39

Drift

PSRR

CHARGE PUMP OUTPUT (CPO)

Frequency

Duty Cycle

POWER SUPPLY

IDD Dynamic

ELECTRICAL CHARACTERISTICS

VIL Voltage Input Low

VIH Voltage Input High

2.0

VOL Voltage Output Low

VOH Voltage Output High

4.0

IIL Low Level Input Current

IIH High Level Input Current

−10

IOZH High Level Three-State Leakage −10

IOZL Low Level Three-State Leakage

Typ Max

4.09 4.2

385 420

30

60

125

5

1.1

2.47 2.52

70

−60

204.8

50

18

0.8

0.4

10

10

Unit

Conditions/Comments

V p-p

mV

Degrees

Degrees

µs

DOS goes low when Sin or Cos exceeds threshold.

DOS latched low when Sin/Cos amplitude mismatch

exceeds the threshold.

DOS indicated before angular output error exceeds

limit.

Maximum electrical rotation before DOS is indicated.

Degrees

ms

Degrees

LOT goes low when internal error signal exceeds

threshold. Guaranteed by design.

Guaranteed by design

V

ppm/°C

dB

±IOUT = 100 µA

kHz

Square wave output

%

mA

V

V

V

2 mA load

V

−1 mA load

µA

µA

µA

µA

Rev. 0 | Page 5 of 24

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