AS1527-BSOT 查看數據表（PDF） - austriamicrosystems AG

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AS1527-BSOT

10-Bit, Single Supply, Low-Power, 73ksps A/D Converters

austriamicrosystems AG 

AS1526/AS1527

Data Sheet - Electrical Characteristics

6 Electrical Characteristics

VDD = +2.7 to +3.6V, 73ksps, fSCLK = 2.1MHz (50% duty cycle); AS1526:4.7µF capacitor at REF, AS1527: external ref-

erence; VREF = 2.5V applied to REF; TAMB = TMIN to TMAX (unless otherwise specified).

Table 3. Electrical Characteristics

Symbol

Parameter

Conditions

Min Typ Max Units

DC Accuracy 1

Resolution

10

Bits

Relative Accuracy 2

±0.5 LSB

DNL

Differential Non-Linearity

No missing codes over temperature

±1 LSB

Offset Error

±2 LSB

Gain Error 3

±2 LSB

Gain Temperature Coefficient

±1

ppm/°C

Dynamic Specifications (10kHz sine-wave input, 0V to 2.5Vp-p, 73ksps, fSCLK =2.1MHz)

SINAD

Signal-to-Noise + Distortion

Ratio

61

dB

THD

Total Harmonic Distortion

Up to the 5th harmonic

-70

dB

SFDR Spurious-Free Dynamic Range

70

dB

Small-Signal Bandwidth

-3dB rolloff

2.5

MHz

Full-Power Bandwidth

2.5

MHz

Conversion Rate

tCONV

Conversion Time

5.5

7.5

µs

tACQ

Track/Hold Acquisition Time

1.5

µs

Throughput Rate 4

fSCLK = 2.1MHz

73 ksps

tAP

Aperture Delay

Figure 27 on page 13

7

ns

Aperture Jitter

<50

ps

Analog Input

Input Voltage Range

0

VREF

V

Input Capacitance

21

pF

Internal Reference (AS1526 only)

REF Output Voltage

TAMB = +25ºC 5

2.47 2.50 2.53 V

REF Short-Circuit Current

45

mA

REF Temperature Coefficient

AS1526

±30

ppm/°C

Load Regulation 6

0 to 0.2mA output load

0.35

mV

CREFBYP Capacitive Bypass at REF

4.7

µF

External Reference (VREF = 2.5V)

Input Voltage Range

1.00

VDD +

50mV

V

Input Current

100 150 µA

Input Resistance

18 25

kΩ

REF Input Current in Shutdown

SHDNN = 0V

±0.01 10

µA

CREFBYP Capacitive Bypass at REF

0.1

µF

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