AD1935/AD1936/AD1937/AD1938/AD1939

Preliminary Technical Data

Rev. Pr

I | Page 2 of 30

AD193X—SPECIFICATIONS

Test Conditions, Unless Otherwise Noted.

Performance of all channels is identical (exclusive of the Inter-channel Gain Mismatch and Inter-channel Phase Deviation specifications).

Parameter

Rating

Supply Voltages (AVDD, DVDD)

3.3 V

Case Temperature

25°C

Master Clock

Input Signal

1.000 kHz, 0 dBFS (Full Scale), -1 dBVrms (0.9Vrms)

Input Sample Rate

48 kHz

Measurement Bandwidth

20 Hz to 20 kHz

Word Width

24 Bits

Load Capacitance (Digital Output)

50 pF

Load Current (Digital Output)

±1 mA or 1.5k

Ω to ½ DVDD supply

Input Voltage HI

2.0 V

Input Voltage LO

0.8 V

Table 1

Analog Performance

Parameter

Min

Typ

Max

Unit

ADC Resolution (all ADCs)

24

Bits

No Filter (RMS)

102

dB

With A-Weighted Filter (RMS)

105

dB

With A-Weighted Filter (Avg)

107

dB

–92

dB

Full-Scale Input Voltage (Differential)

1.9

V rms

Gain Error

–5.0

+5.0

%

Interchannel Gain Mismatch

–0.1

+0.1

dB

Offset Error

–10

0

+10

mV

Gain Drift

100

ppm/°C

Interchannel Isolation

–110

dB

CMRR, 100 mV RMS, 1 kHz

70

dB

CMRR, 100 mV RMS, 20 kHz

70

dB

Input Resistance

14

k

Ω

Input Capacitance

10

pF

ANALOG-TO-DIGITAL CONVERTERS

Input Common-Mode Bias Voltage

1.5

V

No Filter (RMS), Single-ended version

101

dB

With A-Weighted Filter (RMS), Single-ended version

104

dB

With A-Weighted Filter (Avg), Single-ended version

106

dB

No Filter (RMS), Differential version

104

dB

With A-Weighted Filter (RMS), Differential version

107

dB

With A-Weighted Filter (Avg), Differential version

109

dB

Single-ended version

–92

dB

Differential version

–94

dB

Full-Scale Output Voltage (Single-ended version)

0.9 (2.5)

V rms (V pp)

Full-Scale Output Voltage (Differential version)

1.8 (5.0)

V rms (V pp)

DIGITAL-TO-ANALOG CONVERTERS

Gain Error

-6%

TBD

+6%

%