AD7992BRMZ-1 查看數據表（PDF） - Analog Devices

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AD7992BRMZ-1

2-Channel, 12-Bit ADC with I2C-Compatible Interface in 10-Lead MSOP

Analog Devices 

AD7992

SPECIFICATIONS

Temperature range for B version is −40°C to +125°C. Unless otherwise noted, VDD = 2.7 V to 5.5 V; REFIN = 2.5 V to VDD. For the

AD7992-0, all specifications apply for fSCL up to 400 kHz; for the AD7992-1 all specifications apply for fSCL up to 3.4 MHz. All

specifications are for both single-channel mode and dual-channel mode, Unless otherwise noted; TA = TMIN to TMAX.

Table 2.

Parameter

DYNAMIC PERFORMANCE1

Signal-to-Noise + Distortion (SINAD)2

Signal-to-Noise Ratio (SNR)2

Total Harmonic Distortion (THD)2

Peak Harmonic or Spurious Noise (SFDR)2

Intermodulation Distortion (IMD)2

Second-Order Terms

Third-Order Terms

Aperture Delay2

Aperture Jitter2

Channel-to-Channel Isolation2

Full Power Bandwidth2

DC ACCURACY

Resolution

Integral Nonlinearity1, 2

Differential Nonlinearity1, 2

Offset Error2

B Version Unit

70.5

dB min

71

dB min

–78

dB max

–79

dB max

–90

–90

10

50

−90

11

2

12

±1

±0.2

+1/–0.9

±0.2

±4

dB typ

dB typ

ns max

ps typ

dB typ

MHz typ

MHz typ

Bits

LSB max

LSB typ

LSB max

LSB typ

LSB max

Test Conditions/Comments

FIN = 10 kHz sine wave for fSCL from 1.7 MHz to

3.4 MHz

FIN = 1 kHz sine wave for fSCL up to 400 kHz

fa = 10.1 kHz, fb = 9.9 kHz for fSCL from 1.7 MHz

to 3.4 MHz

fa = 1.1 kHz, fb = 0.9 kHz for fSCL up to 400 kHz

FIN = 108 Hz; see the Terminology section

@ 3 dB

@ 0.1 dB

Guaranteed no missed codes to 12 bits

Mode 1 (CONVST mode)

Offset Error Match2

Gain Error2

Gain Error Match2

ANALOG INPUT

Input Voltage Range

DC Leakage Current

Input Capacitance

REFERENCE INPUT

REFIN Input Voltage Range

DC Leakage Current

Input Impedance

LOGIC INPUTS (SDA, SCL)

Input High Voltage, VINH

Input Low Voltage, VINL

Input Leakage Current, IIN

Input Capacitance, CIN3

Input Hysteresis, VHYST

±6

±1

±2

±1

0 to REFIN

±1

30

1.2 to VDD

±1

69

0.7 (VDD)

0.3 (VDD)

±1

10

0.1 (VDD)

LSB max

LSB max

LSB max

LSB max

V

µA max

pF typ

V min/V max

µA max

kΩ typ

V min

V max

µA max

pF max

V min

Mode 2 (command mode)

Dual-channel mode

Dual-channel mode

VIN = 0 V or VDD

Rev. 0 | Page 3 of 28

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