ad7531ln Intersil Corporation, ad7531ln Datasheet - Page 5

• Manufacturer Part Number: ad7531ln
• Description: 10-bit, 12-bit, Multiplying D/a Converters
• Manufacturer: Intersil Corporation

Test Circuits
15 F
COUNTER
+11V (ADJUST FOR V
CLOCK
BINARY
10-BIT
100kHz SINE WAVE
V
REF
BIT 10 (LSB)
BIT 1 (MSB)
1K
= 20V
(MSB)
BIT 10
BIT 1
BIT 10
FIGURE 6. FEEDTHROUGH ERROR
(LSB)
BIT 11
BIT 12
(LSB)
4
5
AD7520
13 3 1
BIT 1
15
V
REF
P-P
+15V
GND
FIGURE 2. NONLINEARITY
14
2
V
OUT
The following test circuits apply for the AD7520. Similar circuits are used for the AD7530, AD7521 and AD7531.
4
5
AD7520
13 3 2
REFERENCE
REF
I
I
FIGURE 4. NOISE
15
OUT2
OUT1
4
5
13 3
AD7520
15
12-BIT
= 0V)
DAC
16
50k
+15V
1
+15V
GND
14
I
I
OUT2
100
16
R
OUT1
1
2
FEEDBACK
0.1 F
1k
I
I
OUT1
OUT2
10k 0.01%
HA2600
+
-
101ALN
+
-
AD7520, AD7530, AD7521, AD7531
50V
10k
3
2
+
HA2600
-
V
OUT
10k
0.01%
6
HA2600
+
-
MODEL 134D
1M
ANALYZER
BW = 1Hz
f = 1kHz
LINEARITY
QUAN
TECH
WAVE
ERROR
X 100
V
OUT
10-11
+5V
V
0V
REF
+15V
DIGITAL
+10V
INPUT
FIGURE 7. OUTPUT CURRENT SETTLING TIME
BIT 10
(LSB)
BIT 10 (LSB)
BIT 1 (MSB)
(MSB)
BIT 1
FIGURE 3. POWER SUPPLY REJECTION
BIT 10 (LSB)
BIT 1 (MSB)
-10V
FIGURE 5. OUTPUT CAPACITANCE
GND
V
4
5
AD7520
13 3 2
15
+15V
REF
NC
4
5
13 3
14
16
15
AD7520
1
4
5
13 3
15
AD7520
I
R
I
+15V
OUT2
OUT1
EXTRAPOLATE
14
FEEDBACK
16
1
2
+15V
GND
5K 0.01%
14
UNGROUNDED
SINE WAVE
GENERATOR
400Hz 1V
1
2
HA2600
+
-
5k 0.01%
I
OUT2
+100mV
NC
SCOPE
P-P
1k
5t: 1% SETTLING (1mV)
8t: 0.03% SETTLING
t = RISE TIME
100
100mV
1MHz
HA2600
+
-
500k
SCOPE
P-P