Datasheet

9
LTC1591/LTC1597
15917fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
(LTC1597)
Differential Nonlinearity vs
Supply Voltage in Bipolar Mode
SUPPLY VOLTAGE (V)
–1.0
DIFFERENTIAL NONLINEARITY (LSB)
–0.8
–0.4
–0.2
0
1.0
0.4
2
4
5
1597 G10
–0.6
0.6
0.8
0.2
3
6
7
V
REF
= 10V
V
REF
= 10V
V
REF
= 2.5V
V
REF
= 2.5V
Unipolar Multiplying Mode Frequency
Response vs Digital Code
Bipolar Multiplying Mode Frequency
Response vs Digital Code
Bipolar Multiplying Mode Frequency
Response vs Digital Code
FREQUENCY (Hz)
–100
–120
ATTENUATION (dB)
–80
–40
0
100 10k 100k 10M
1597G11
1k 1M
–20
–60
D15 ON
D14 ON
D13 ON
D12 ON
ALL BITS ON
D9 ON
D1 ON
D0 ON
–
+
30pF
3214
6
7
22
5
LT1468
LTC1597
V
OUT
V
REF
D11 ON
D10 ON
D8 ON
D7 ON
D6 ON
D5 ON
D4 ON
D3 ON
D2 ON
ALL BITS OFF
FREQUENCY (Hz)
–100
ATTENUATION (dB)
–80
–40
0
10
*DAC ZERO VOLTAGE OUTPUT LIMITED BY BIPOLAR
ZERO ERROR TO –96dB TYPICAL (–78dB MAX, A GRADE)
1k 10k 10M1M
1597 G12
100 100k
–20
–60
D15 AND D14 ON
D15 AND D13 ON
D15 AND D12 ON
D15 AND D11 ON
D15 AND D10 ON
D15 AND D9 ON
D15 AND D8 ON
D15 AND D7 ON
D15 AND D6 ON
D15 AND D5 ON
D15 AND D4 ON
D15 AND D3 ON
D15 AND D2 ON
ALL BITS ON
15pF
12pF
–
+
–
+
12pF
V
REF
V
OUT
1234
6
7
22
5
LT1468
LT1468
LTC1597
D15 ON
*
D15 AND D0 ON
D15 AND D1 ON
CODES FROM
MIDSCALE
TO FULL SCALE
FREQUENCY (Hz)
–100
ATTENUATION (dB)
–80
–40
0
10 1k 10k 10M1M
1597 G13
100 100k
–20
–60
D14 ON
D14 AND D13 ON
D14 TO D12 ON
D14 TO D11 ON
D14 TO D10 ON
D14 TO D9 ON
D14 TO D8 ON
D14 TO D7 ON
D14 TO D6 ON
D14 TO D5 ON
D14 TO D4 ON
D14 TO D3 ON
D14 TO D2 ON
D14 TO D1 ON
ALL BITS OFF
*DAC ZERO VOLTAGE OUTPUT LIMITED BY BIPOLAR
ZERO ERROR TO –96dB TYPICAL (–78dB MAX, A GRADE)
15pF
12pF
–
+
–
+
12pF
V
REF
V
OUT
1234
6
7
22
5
LT1468
LT1468
LTC1597
D14 TO D0 ON
D15 ON
*
CODES FROM
MIDSCALE
TO ZERO SCALE