(typical at T = +25؇C and +5 V supplies unless otherwise noted)
AD1868–SPECIFICATIONS
A
Min
2.4
Typ
Max
Units
RESOLUT ION
18
Bit
DIGIT AL INPUT S
VIH
V
V
VIL
0.8
IIH, VIH = VL
IIL, VIL = DGND
Maximum Clock Input Frequency
1.0
1.0
µA
µA
MHz
13.5
ACCURACY
Gain Error
Gain Matching
Midscale Error
Midscale Error Matching
Gain Linearity Error
±1
±1
±15
±10
±3
% of FSR
% of FSR
mV
mV
dB
DRIFT (0°C to +70°C)
Gain Drift
Midscale Drift
±100
±100
ppm/°C
µV/°C
T OT AL HARMONIC DIST ORT ION + NOISE
0 dB, 990.5 Hz
AD1868N
AD1868N-J
AD1868N
AD1868N-J
AD1868N
AD1868N-J
0.004
0.004
0.020
0.020
2.0
0.008
0.006
0.08
0.08
5.0
%
%
%
%
%
%
–20 dB, 990.5 Hz
–60 dB, 990.5 Hz
2.0
5.0
CHANNEL SEPARAT ION 1 kHz, 0 dB
SIGNAL-T O-NOISE RAT IO (with A-Weight Filter)
D-RANGE (with A-Weight Filter)
108
95
NIL*
97.5
92
dB
dB
dB
86
OUT PUT
Voltage Output Pins (VOL, VOR)
Output Range (±3%)
Output Impedance
Load Current
±1
0.1
±1
V
Ω
mA
Bias Voltage Pins (VBL, VBR)
Output Voltage
Output Impedance
+2.5
350
V
Ω
POWER SUPPLY
Specification, VL and VS
Operation, VL and VS
+I, VL and VS = 5 V
4.75
3.5
5
5.25
5.25
14
V
V
mA
10
50
POWER DISSIPAT ION
70
mW
T EMPERAT URE RANGE
Specification
Operation
0
–35
–60
25
70
85
100
°C
°C
°C
Storage
*Above 115 dB.
Specifications subject to change without notice.
*Stresses greater than those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. T his is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ABSO LUTE MAXIMUM RATINGS*
VL to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6 V
VS to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3 V
Digital Inputs to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 to VL
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C, 10 sec
CAUTIO N
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD1868 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. T herefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
–2–
REV. A