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AD7520 View Datasheet(PDF) -

Part Name
Description
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AD7520
 
AD7520 Datasheet PDF : 0 Pages
AD7520, AD7521
Absolute Maximum Ratings
Supply Voltage (V+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . .+17V
VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
Digital Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . V+ to GND
Output Voltage Compliance . . . . . . . . . . . . . . . . . . . . . -100mV to V+
Operating Conditions
Temperature Ranges
JN, LN Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC
Thermal Information
Thermal Resistance (Typical, Note 1) θJA (oC/W)
16 Ld PDIP Package
90
θJC (oC/W)
N/A
18 Ld PDIP Package
80
N/A
Maximum Junction Temperature (Plastic Packages) . . . . . . .150oC
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
The digital control inputs are zener protected; however, permanent damage may occur on unconnected units under high energy electrostatic fields. Keep unused units in
conductive foam at all times.
Do not apply voltages higher than VDD or less than GND potential on any terminal except VREF and RFEEDBACK.
1. θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications V+ = +15V, VREF = +10V, TA = 25oC Unless Otherwise Specified
AD7520
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX MIN
SYSTEM PERFORMANCE (Note 2)
Resolution
10
10
10
12
Nonlinearity
J
(Note 3) (Figure 2)
-10V VREF +10V
L
-10V VREF +10V
(Figure 2)
-
-
±0.2
-
(8-Bit)
-
-
±0.05
-
(10-Bit)
Nonlinearity Tempco
-10V VREF +10V
(Notes 3, 4)
-
-
±2
-
Gain Error
-
±0.3
-
-
AD7521
TYP
12
-
-
-
±0.3
Gain Error Tempco
-
-
±10
-
-
Output Leakage Current
(Either Output)
Over the Specified
Temperature Range
DYNAMIC CHARACTERISTICS
Output Current Settling Time
To 0.05% of FSR (All Digital
Inputs Low To High And High
To Low) (Note 4) (Figure 7)
Feedthrough Error
VREF = 20VP-P, 100kHz
All Digital Inputs Low (Note 4)
(Figure 6)
REFERENCE INPUT
Input Resistance
ANALOG OUTPUT
All Digital Inputs High
IOUT1 at Ground
Output Capacitance
Output Noise
IOUT1
IOUT2
IOUT1
IOUT2
All Digital Inputs High
(Note 4) (Figure 5)
All Digital Inputs Low
(Note 4) (Figure 5)
Both Outputs
(Note 4) (Figure 4)
DIGITAL INPUTS
Low State Threshold, VIL
High State Threshold, VIH
Input Current, IIL, IIH
Input Coding
Over the Specified
Temperature Range
VIN = 0V or +15V
See Tables 1 and 2
-
-
±200
-
-
-
1.0
-
-
-
-
1.0
10
-
-
5
10
20
5
10
-
200
-
-
75
-
-
75
-
-
200
-
- Equivalent
-
to 10k
-
200
-
75
-
75
-
200
- Equivalent
to 10k
-
-
0.8
-
-
2.4
-
-
2.4
-
-
-
±1
-
-
Binary/Offset Binary
MAX
12
-
±0.05
(10-Bit)
±2
-
±10
±200
-
10
20
-
-
-
-
-
0.8
-
±1
UNITS
Bits
% of
FSR
% of
FSR
ppm of
FSR/oC
% of
FSR
ppm of
FSR/oC
nA
µs
mVP-P
k
pF
pF
pF
pF
Johnson
Noise
V
V
µA
2
 

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