AD7730L Analog Devices, AD7730L Datasheet - Page 3

• Manufacturer Part Number: AD7730L
• Description: CMOS, 24-Bit Low Power Sigma-Delta ADC for Bridge Transducer Applications
• Manufacturer: Analog Devices

Specifications of AD7730L

• Resolution (bits): 24bit
• # Chan: 2
• Sample Rate: 5MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: (2Vref/PGA Gain) p-p,(Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

REV. A
Parameter
LOGIC INPUTS
LOGIC OUTPUTS (Including MCLK OUT)
TRANSDUCER BURNOUT
OFFSET (TARE) DAC
SYSTEM CALIBRATION
POWER REQUIREMENTS
Input Current
All Inputs Except SCLK and MCLK IN
SCLK Only (Schmitt Triggered Input)
MCLK IN Only
V
V
V
V
Floating State Leakage Current
Floating State Output Capacitance
AIN1(+) Current
AIN1(–) Current
Initial Tolerance @ 25 C
Drift
Resolution
LSB Size
DAC Drift
DAC Drift vs. Time
Differential Linearity
Positive Full-Scale Calibration Limit
Negative Full-Scale Calibration Limit
Offset Calibration Limit
Input Span
Power Supply Voltages
Power Supply Currents
Power Dissipation
OL
OL
OH
OH
V
V
V
V
V
V
V
V
V
V
V
V
V
AV
DV
AV
AV
DV
DV
AV
Normal Mode
Standby Mode
, Output Low Voltage
, Output Low Voltage
INL
INL
INH
T+
T+
T–
T–
T+
T+
INL
INL
INH
INH
, Output High Voltage
, Output High Voltage
2
DD
DD
DD
DD
DD
DD
DD
, Input Low Voltage
, Input Low Voltage
– V
– V
, Input Low Voltage
, Input Low Voltage
, Input High Voltage
, Input High Voltage
, Input High Voltage
– AGND Voltage
Current (Normal Mode)
Current (Normal Mode)
+ DV
Voltage
Current (Normal Mode)
Current (Normal Mode)
T–
T–
16
17
DD
Current (Standby Mode)
4, 16
18
2
17
17
B Version
0.8
0.4
2.0
1.4/3
1/2.5
0.8/1.4
0.4/1.1
0.4/0.8
0.4/0.8
0.8
0.4
3.5
2.5
0.4
0.4
4.0
V
6
–100
100
0.1
6
2.3/2.6
2.5
25
–0.25/+0.75
1.05
–1.05
–1.05
0.8 FS
2.1 FS
+4.75 to +5.25
+2.7 to +5.25
10.3
22.3
1.3
2.7
25
65
125
125
10
10
10
DD
– 0.6 V
FS
FS
FS
1
V min
V min to V max
V min to V max
V min to V max
V min to V max
V min
V min
mV min/mV max
LSB max
V min to V max
mA max
mA max
Units
V max
V max
V min to V max
V min to V max
V max
V max
V max
V max
V min
V min
pF typ
nA nom
nA nom
% typ
%/ C typ
Bit
ppm/ C max
ppm/1000 Hours typ
V max
V max
V max
V min
V max
V min to V max
mA max
mA max
mW max
mW max
A max
A max
A max
W max
–3–
Conditions/Comments
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
I
V
I
V
I
V
I
V
2.5 mV Nominal with 5 V Reference (REF IN/2000)
Guaranteed Monotonic
FS Is the Nominal Full-Scale Voltage
(10 mV, 20 mV, 40 mV or 80 mV)
With AGND = 0 V
External MCLK. Digital I/Ps = 0 V or DV
All Input Ranges Except 0 mV to +10 mV and 10 mV
Input Ranges of 0 mV to +10 mV and 10 mV Only
DV
DV
Typically 10 A. External MCLK IN = 0 V or DV
AV
All Input Ranges Except 0 mV to +10 mV and 10 mV
Input Ranges of 0 mV to +10 mV and 10 mV Only
Typically 50 W. External MCLK IN = 0 V or DV
SINK
SINK
SOURCE
SOURCE
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
15
15
15
15
= 800 A Except for MCLK OUT
= 100 A Except for MCLK OUT
= DV
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
= +5 V
= +3 V
of 2.7 V to 3.3 V
of 4.75 V to 5.25 V
= 200 A Except for MCLK OUT
= 100 A Except for MCLK OUT
DD
= +5 V. Digital I/Ps = 0 V or DV
AD7730/AD7730L
14
14
;
;
DD
14
14
;
;
DD
DD
DD