(TA = 25؇C, VDD = 15 V, VSS = –5 V)
Typical Performance Characteristics–AD7226
2.0
1.5
VREF = 10V
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256
INPUT CODE (DECIMAL EQUIVALENT)
TPC 1. Channel-to-Channel Matching
AD7226K, B
4
3
2
1
0
–1
–2
–3
–4
0
2
4
6
8
10
12
14
VREF (V)
TPC 3. Differential Nonlinearity vs. VREF
AD7226K, B
4
3
2
1
0
–1
–2
–3
–4
0
2
4
6
8
10
12
14
VREF (V)
TPC 2. Relative Accuracy vs. VREF
2.0
1.5
1.0
0.5
0
–0.5
–1.0
VOUTA
VOUTD
VOUTB
VOUTC
–1.5
–2.0
0 10 20 30 40 50 60 70 80 90 100 110 120 130
TEMPERATURE (؇C)
TPC 4. Zero Code Error vs. Temperature
REV. D
–7–