AS1529 datasheet(5/21 Pages) AMSCO

Part #	AS1529

Description	Micro-Power, 10-Bit, 150ksps, ADC, Single Ended or Differential

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Manufacturer	AMSCO [ams AG]

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AS1528/AS1529

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6 Electrical Characteristics

VDD = +2.7 to +5.25V, VREF = +2.5V, 4.7µF Capacitor at REF; fSCLK = 8MHz (50% Duty Cycle); AIN- = GND (AS1528)

TAMB = TMIN to TMAX (unless otherwise specified). Typical Values at TAMB = +25ºC. Unipolar Mode (AS1528).

Table 4. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

DC Accuracy

Resolution

10

Bits

INL

Relative Accuracy

±0.275

LSB

DNL

Differential Non-Lineraity

No Missing Codes Over Temperature

±0.275

LSB

Offset Error

±0.25

±2

LSB

Gain Error

1

±0.25

±2

LSB

Gain Temp Coefficient

±0.3

ppm/ºC

Offset Temp Coefficient

±0.3

ppm/ºC

Channel-to-Channel Offset

Match

±0.025

LSB

Channel-to-Channel Gain

Match

±0.025

LSB

Dynamic Specifications – (fIN (sinewave) = 10kHz, VIN = 2.5VP-P, 150ksps, fSCLK = 8MHz (50% duty cycle), AIN- =

GND (AS1528)

SINAD

Signal-to-Noise Plus Distortion

61.5

dB

THD

Total Harmonic Distortion (to

the 5th Harmonic)

-79.5

dB

SFDR

Spurious-Free Dynamic Range

84

dB

Full Power Bandwidth

-3dB Point

20

MHz

Full Linear Bandwidth

-0.1dB Point

400

kHz

Conversion Rate

tCONV

Conversion Time

Exclusive of tACQ

3.3

3.7

µs

tACQ

Track/Hold Acquisition Time

1.4

µs

Aperture Delay

30

ns

fSCLK

Max Serial Clock Frequency

8

MHz

Serial Clock Duty Cycle

30

70

%

Analog Input

VIN Range

2

Unipolar

0

VREF

V

Bipolar

-VREF/2

VREF/2

Input Leakage Current

No Channel Selected or Conversion

Halted

±0.01

±1

µA

Input Capacitance

Track Mode

20

pF

Hold Mode

5

pF

External Reference Input

VREF

VIN Range

1.0

VDD +

50mV

V

IREF

Input Current

VREF = +2.5V @ 150ksps

11

25

µA

VREF = +4.096V @ 150ksps

19

Acquisition Between Conversions

0

+2

+5

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