AD7701 Analog Devices, AD7701 Datasheet - Page 3

• Manufacturer Part Number: AD7701
• Description: 16-Bit Sigma-Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7701

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 16kSPS
• Interface: Ser
• Analog Input Type: SE-Bip,SE-Uni
• Ain Range: Bip 2.5V,Uni 2.5V
• Adc Architecture: Sigma-Delta
• Pkg Type: DIP,SOIC,SOP

Parameter
POWER REQUIREMENTS
NOTES
10
Specifications subject to change without notice.
REV. E
1
2
3
4
5
6
7
8
9
The A
Temperature ranges are as follows: A, B Versions: –40°C to +85°C; S, T Versions: –55°C to +125°C.
Apply after calibration at the temperature of interest. Full-scale error applies for both unipolar and bipolar input ranges.
Total drift over the specified temperature range since calibration at power-up at 25 °C. This is guaranteed by design and/or characterization. Recalibration at
In Unipolar mode, the offset can have a negative value (–V
The specifications for input overrange and for input span apply additional constraints on the offset calibration range.
For Unipolar mode, input span is the difference between full scale and zero scale. For Bipolar mode, input span is the difference between positive and
All digital outputs unloaded. All digital inputs at 5 V CMOS levels.
Applies in 0.1 Hz to 10 Hz bandwidth. PSRR at 60 Hz will exceed 120 dB due to the digital filter.
any temperature will remove these errors.
negative full-scale points. When using less than the maximum input span, the span range may be placed anywhere within the range of ± (V
CLKIN is stopped. All digital inputs are grounded.
Power Supply Voltages
DC Power Supply Currents
Power Supply Rejection
Power Dissipation
Analog Positive Supply (AV
Digital Positive Supply (DV
Analog Negative Supply (AV
Digital Negative Supply (DV
Calibration Memory Retention
Power Supply Voltage
Analog Positive Supply (AI
Digital Positive Supply (DI
Analog Negative Supply (AI
Digital Negative Supply (DI
Positive Supplies
Negative Supplies
Normal Operation
Standby Operation
IN
pin presents a very high impedance dynamic load that varies with clock frequency.
10
9
8
8
DD
DD
DD
DD
SS
SS
SS
SS
)
)
)
)
)
)
)
)
A, S Version
4.5/5.5
4.5/AV
–4.5/–5.5
–4.5/–5.5
2.0
2.7
2
2.7
0.1
70
75
37
20 (40 S Version)
DD
REF
2
) such that the Unipolar mode can mimic Bipolar mode operation.
B, T Version
4.5/5.5
4.5/AV
–4.5/–5.5
–4.5/–5.5
2.0
2.7
2
2.7
0.1
70
75
37
20 (40 T Version)
–3–
DD
2
Unit
V min/V max
V min/V max
V min/V max
V min/V max
V min
mA max
mA max
mA max
mA max
dB typ
dB typ
mW max
µW max
Test Conditions/Comments
Typically 2 mA
Typically 1 mA
Typically 2 mA
Typically 0.03 mA
SLEEP = Logic 1,
Typically 25 mW
SLEEP = Logic 0,
Typically 10 µW
REF
+0.1).
AD7701