AD7992 Analog Devices, AD7992 Datasheet - Page 3

• Manufacturer Part Number: AD7992
• Description: 2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
• Manufacturer: Analog Devices

Specifications of AD7992

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 79kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref),Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SOP

SPECIFICATIONS
Temperature range for B version is −40°C to +125°C. Unless otherwise noted, V
AD7992-0, all specifications apply for f
specifications are for both single-channel mode and dual-channel mode, Unless otherwise noted; T
Table 2.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS (SDA, SCL)
Signal-to-Noise + Distortion (SINAD)
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise (SFDR)
Intermodulation Distortion (IMD)
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation
Full Power Bandwidth
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset Error Match
Gain Error
Gain Error Match
Input Voltage Range
DC Leakage Current
Input Capacitance
REF
DC Leakage Current
Input Impedance
Input High Voltage, V
Input Low Voltage, V
Input Leakage Current, I
Input Capacitance, C
Input Hysteresis, V
Second-Order Terms
Third-Order Terms
IN
Input Voltage Range
2
2
2
2
2
2
HYST
IN
1, 2
INL
INH
2
3
1
1, 2
IN
2
2
2
2
2
SCL
up to 400 kHz; for the AD7992-1 all specifications apply for f
2
B Version
70.5
71
–78
–79
–90
–90
10
50
−90
11
2
12
±1
±0.2
+1/–0.9
±0.2
±4
±6
±1
±2
±1
0 to REF
±1
30
1.2 to V
±1
69
0.7 (V
0.3 (V
±1
10
0.1 (V
Rev. 0 | Page 3 of 28
DD
DD
DD
DD
)
)
)
IN
Unit
dB min
dB min
dB max
dB max
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
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
DD
= 2.7 V to 5.5 V; REF
Test Conditions/Comments
F
3.4 MHz
F
fa = 10.1 kHz, fb = 9.9 kHz for f
to 3.4 MHz
fa = 1.1 kHz, fb = 0.9 kHz for f
F
@ 3 dB
@ 0.1 dB
Guaranteed no missed codes to 12 bits
Mode 1 (CONVST mode)
Mode 2 (command mode)
Dual-channel mode
Dual-channel mode
V
IN
IN
IN
IN
= 10 kHz sine wave for f
= 1 kHz sine wave for f
= 108 Hz; see the Terminology section
= 0 V or V
A
= T
DD
SCL
IN
MIN
= 2.5 V to V
up to 3.4 MHz. All
to T
MAX
.
SCL
SCL
up to 400 kHz
DD
SCL
from 1.7 MHz to
SCL
. For the
up to 400 kHz
from 1.7 MHz
AD7992