AD4050BCPZ-R2 datasheet(4/67 Pages) AD

4 / 67 page

Data Sheet

AD4050/AD4056

SPECIFICATIONS

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Rev. A | 4 of 67

VDD = 2.3 V to 3.6 V, VREF = 2.3 V to 3.6 V, VIO = 1.71 V to 3.6 V, reference capacitance (CREF) = 2.2 μF, and operating at the maximum

specified sample rate (fS), unless otherwise specified. All other features in default configuration, minimum and maximum values at TA = −40°C

to +125°C, and typical values at TA = +25°C, unless otherwise specified.

Table 1. Specifications

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

ADC Resolution

Bits

Averaging Filter Resolution

Averaging mode, burst averaging mode

Bits

Comparator Mode Resolution

Autonomous modes

Bits

SAMPLING DYNAMICS

Sampling Rate (fS)1

AD4050

MSPS

AD4056

500

kSPS

Aperture Delay

0.3

ANALOG INPUT

Input Voltage (VIN) Range2

VIN = VIN+ − VIN−

Differential mode

−VREF

+VREF

Single-ended mode

+VREF

Absolute Input Voltage2

VIN+, VIN−

−0.1

VDD + 0.1

Common-Mode Input Voltage (VCM) Range3

VCM = (VIN+ + VIN−)/2

−0.1

VDD + 0.1

Analog Input Leakage Current

IN+, IN−

Sampling Capacitance (CIN)

3.4

Analog Input Capacitance4

IN+, IN−

Track Phase

5.4

Hold Phase

2.0

DC ACCURACY

VREF = 3.3 V

No Missing Codes

Bits

Transition Noise

Sample mode (no averaging)

Differential mode

0.08

LSB rms

Single-ended mode

0.16

LSB rms

Integral Nonlinearity (INL)

−0.1

±0.03

+0.1

LSB

Differential Nonlinearity (DNL)5

−0.1

±0.03

+0.1

LSB

Zero Error

−900

±75

+900

μV

Zero-Error Drift

±0.05

ppm/°C

Gain Error

−0.06

±0.002

+0.06

%FS

Gain Error Drift

±0.2

ppm/°C

Total Unadjusted Error (TUE)6

−600

±20

+600

ppm

Autonomous Mode TUE7

±7

REFERENCE

VREF Input Range

2.3

VDD

REF Standby Current

VREF = 3.3 V

REF Average Input Current8

VREF = 3.3 V, fS = 2 MSPS (AD4050)

μA

VREF = 3.3 V, fS = 500 kSPS (AD4056)

μA

AC PERFORMANCE

VREF = 3.3 V

Total RMS Noise

Sample mode (no averaging)

476

μVrms

Signal-to-Noise Ratio (SNR)

VIN = −0.5 dBFS, input frequency (fIN) = 1 kHz

Differential Mode

Sample mode (no averaging)

73.8

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