Data Sheet

ADAQ4381-4

SPECIFICATIONS

analog.com

Rev. 0 | 4 of 45

VS+ = REFIN = IN_LDO = EN_LDO = 5 V ± 5%, VCC = VLOGIC = 3.45 V (OUT_LDO), VS− = 0 V, reference voltage (VREF) = 3.3 V internal,

fSAMPLE = 4 MSPS, fully differential input configuration, full power mode, TA = 25°C , no oversampling, unless otherwise noted.

Table 2. Electrical Specifications

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

14

Bits

ANALOG INPUT CHARACTERISTICS

Differential Input Voltage Range, VIN1

Gain = 0.3, VIN = 22 V p-p

−11

+11

V

Gain = 0.6, VIN = 11 V p-p

−5.5

+5.5

V

Gain = 1.0, VIN = 6.6 V p-p

−3.3

+3.3

V

Gain = 1.6, VIN = 4.125 V p-p

−2.0625

+2.0625

V

Input Resistance, RIN

Fully differential input configuration

Gain = 0.3, 0.6

5.40

kΩ

Gain = 1.0

3.24

kΩ

Gain = 1.6

2.026

kΩ

Single-ended input configuration

Gain = 0.3

3.05

kΩ

Gain = 0.6

3.32

kΩ

Gain = 1.0

2.16

kΩ

Gain = 1.6

1.46

kΩ

Input Capacitance

INX+, INX−

2

pF

THROUGHPUT

Complete Cycle

250

ns

Conversion Time

190

ns

Acquisition Phase

110

ns

Conversion Rate

4

MSPS

SAMPLING DYNAMICS

Aperture Delay

2

ns

Aperture Delay Match

46.8

145

ps

Aperture Jitter

20

ps

OVERALL SYSTEM DC ACCURACY

No Missing Codes

14

Bits

Differential Nonlinearity Error (DNL)

All gains, VS− = 0 V

−0.99

±0.4

+1

LSB

Integral Nonlinearity Error (INL)2

All gains, VS− = 0 V

−1

±0.3

+1

LSB

Gain Error

Gain = 0.3

−0.15

±0.002

+0.15

%FS

Gain = 0.6, 1.0, 1.6

−0.05

±0.003

+0.05

%FS

Gain Error Drift

All gains

±0.8

ppm/°C

Offset Error, Referred to Output (RTO)

Gain = 0.3

−0.65

±0.17

+0.65

mV

Gain = 0.6

−0.6

±0.16

+0.6

mV

Gain = 1.0

−0.75

±0.15

+0.75

mV

Gain = 1.6

−0.9

±0.13

+0.9

mV

Offset Error Drift

All gains

−2.0

±0.5

+2.0

µV/°C

Common-Mode Rejection Ratio (CMRR)

∆VICM/∆VOSDIFF

80

dB

Power-Supply Rejection Ratio

VS+, REFIN, IN_LDO = 4.75 V to 5.25 V, VS− = GND

95

dB

OVERALL SYSTEM AC ACCURACY3

Fully differential and single-ended input configuration

Dynamic Range

VIN = −60 dBFS, fIN = 1 kHz

Gain = 0.3, 0.6

85.3

dB

Gain = 1.0, 1.6

85.1

dB

Total RMS Noise, Referred to Output (RTO)

VIN = −60 dBFS, fIN = 1 kHz

Gain = 0.3, 0.6

126.7

μVRMS

Gain = 1.0, 1.6

129.7

μVRMS