AD7731BRUZ-REEL Analog Devices Inc, AD7731BRUZ-REEL Datasheet - Page 2

• Manufacturer Part Number: AD7731BRUZ-REEL
• Description: 24-BIT SIGMA DELTA ADC I.C.
• Manufacturer: Analog Devices Inc

Specifications of AD7731BRUZ-REEL

• Number Of Bits: 24
• Sampling Rate (per Second): 6.4k
• Data Interface: DSP, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 125mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7731EBZ - BOARD EVALUATION FOR AD7731
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7731–SPECIFICATIONS
Parameter
STATIC PERFORMANCE (CHP = 0)
STATIC PERFORMANCE (CHP = 1)
ANALOG INPUTS/REFERENCE INPUTS
No Missing Codes
Output Noise and Update Rates
Integral Nonlinearity
Offset Error
Offset Drift vs. Temperature
Offset Drift vs. Time
Positive Full-Scale Error
Positive Full-Scale Drift vs. Temp
Positive Full-Scale Drift vs. Time
Gain Error
Gain Drift vs. Temperature
Gain Drift vs. Time
Bipolar Negative Full-Scale Error
Negative Full-Scale Drift vs. Temp
Power Supply Rejection
Power Supply Rejection
Common-Mode Rejection (CMR)
Analog Input DC Bias Current
Analog Input DC Bias Current Drift
Analog Input DC Offset Current
Analog Input DC Offset Current Drift
No Missing Codes
Output Noise and Update Rates
Integral Nonlinearity
Offset Error
Offset Drift vs. Temperature
Offset Drift vs. Time
Positive Full-Scale Error
Positive Full-Scale Drift vs. Temp
Positive Full-Scale Drift vs. Time
Gain Error
Gain Drift vs. Temperature
Gain Drift vs. Time
Bipolar Negative Full-Scale Error
Negative Full-Scale Drift vs. Temp
Power Supply Rejection
Power Supply Rejection
Common-Mode Rejection (CMR)
Analog Input DC Bias Current
Analog Input DC Bias Current Drift
Analog Input DC Offset Current
Analog Input DC Offset Current Drift
Normal Mode 50 Hz/60 Hz Rejection
Common-Mode 50 Hz/60 Hz Rejection
Analog Inputs
On AIN
On AIN
On REF IN
On AIN
On AIN
On REF IN
Differential Input Voltage Ranges
2, 9
9
2
2
5
5
5
5
11
11
11
11
2, 6
6
2, 7, 10
7, 10
2
2
2
2
5
2
5
2, 7, 8
7, 8
11
11
2, 7
12
2
2
2
2
2
B Version
24
See Tables I and II
15
See Note 4
0.5
1/2/5
2.5
See Note 4
0.6
1.5/3/6
3
See Note 4
2
10
See Note 4
1
90
60
95
85
120
60
150
30
100
24
See Tables III and IV
15
See Note 4
5
25
See Note 4
2
10
See Note 4
2
10
See Note 4
2
110
85
110
85
120
50
100
10
50
88
120
0 to +20 or 20
0 to +40 or 40
0 to +80 or 80
0 to +160 or 160
0 to +320 or 320
0 to +640 or 640
0 to +1.28 or 1.28
(AV
DGND = 0 V; f
1
DD
= +5 V, DV
CLK IN
–2–
Units
Bits min
ppm of FSR max
ppm/ C typ
ppm/1000 Hr
dB typ
dB typ
dB typ
dB typ
dB typ
nA max
pA/ C typ
nA max
pA/ C typ
Bits min
ppm of FSR max
nV/ C typ
nV/1000 Hr typ
ppm of FS/ C max
ppm of FS/1000 Hr
ppm/ C max
ppm/1000 Hr
ppm of FS/ C max
dB typ
dB typ
dB typ
dB typ
dB typ
nA max
pA/ C typ
nA max
pA/ C typ
dB min
dB min
mV nom
mV nom
mV nom
mV nom
mV nom
mV nom
V nom
DD
V/ C typ
V/ C typ
V/ C typ
V/ C typ
V/1000 Hr
V/ C typ
V/1000 Hr
= 4.9152 MHz. All specifications T
= +3 V or +5 V; REF IN(+) = +2.5 V; REF IN(–) = AGND; AGND =
Conditions/Comments
SKIP = 0
Offset Error and Offset Drift Refer to Both
Input Range = 20 mV, 40 mV, 80 mV, 160 mV
Input Range = 320 mV/640 mV/1.28 V
Input Range = 20 mV, 40 mV, 80 mV, 160 mV
Input Range = 320 mV/640 mV/1.28 V
Input Range = 20 mV
Input Range = 1.28 V
At DC. Input Range = 20 mV
At DC. Input Range = 1.28 V
Offset Error and Offset Drift Refer to Both
Unipolar Offset and Bipolar Zero Errors
Input Range = 20 mV
Input Range = 1.28 V
At DC. Input Range = 20 mV
At DC. Input Range = 1.28 V
50 Hz/60 Hz 1 Hz. SKIP = 0
50 Hz/60 Hz 1 Hz. SKIP = 0
Assuming 2.5 V or 5 V Reference with HIREF
Bit Set Appropriately
RN2, RN1, RN0 of Mode Register = 0, 0, 1
RN2, RN1, RN0 of Mode Register = 0, 1, 0
RN2, RN1, RN0 of Mode Register = 0, 1, 1
RN2, RN1, RN0 of Mode Register = 1, 0, 0
RN2, RN1, RN0 of Mode Register = 1, 0, 1
RN2, RN1, RN0 of Mode Register = 1, 1, 0
RN2, RN1, RN0 of Mode Register = 1, 1, 1
3
MIN
to T
MAX
unless otherwise noted.)
REV. 0
REV. A