Datasheet

AD5293
Rev. D | Page 6 of 24
Parameter Symbol Conditions Min Typ
1
Max Unit
DYNAMIC CHARACTERISTICS
4, 8
Bandwidth BW −3 dB kHz
R
AB
= 50 kΩ 210
R
AB
= 100 kΩ 105
Total Harmonic Distortion THD
W
V
A
= 1 V rms, V
B
= 0 V, f = 1 kHz
R
AB
= 50 kΩ −101 dB
R
AB
= 100 kΩ −106 dB
V
W
Settling Time t
S
V
A
= 30 V, V
B
= 0 V, ±0.5 LSB error
band, initial code = zero scale
Code = full scale, R-normal mode 750 ns
Code = full scale, R-perf mode 2.5 μs
Code = half scale, R-normal mode,
R
AB
= 50 kΩ
7 μs
Code = half scale, R-normal mode,
R
AB
= 100 kΩ
14 μs
Code = half scale, R-perf mode,
R
AB
= 50 kΩ
9 μs
Code = half scale, R-perf mode,
R
AB
= 100 kΩ
16 μs
Resistor Noise Density e
N_WB
Code = half scale, T
A
= 25°C,
0 kHz to 200 kHz,
R
AB
= 50 kΩ 18 nV/√Hz
R
AB
= 100 kΩ 27 nV/√Hz
1
Typicals represent average readings at 25°C; V
DD
= +15 V, V
SS
= −15 V, and V
LOGIC
= 5 V.
2
Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured between R
WB
at Code 0x00B to Code 0x3FF or between R
WA
at Code 0x3F3 to
Code 0x000. R-DNL measures the relative step change from ideal between successive tap positions. The specification is guaranteed in resistor performance mode with
a wiper current of 1 mA for V
A
< 12 V and 1.2 mA for V
A
≥ 12 V.
3
The terms resistor performance mode and R-perf mode are used interchangeably.
4
Guaranteed by design; not subject to production test.
5
INL and DNL are measured at V
W
with the RDAC configured as a potentiometer divider similar to a voltage output DAC. V
A
= V
DD
and V
B
= 0 V. DNL specification limits
of ±1 LSB maximum are guaranteed monotonic operating conditions.
6
The A, B, and W resistor terminals have no limitations on polarity with respect to each other. Dual-supply operation enables ground-referenced bipolar signal
adjustment.
7
P
DISS
is calculated from (I
DD
× V
DD
) + (I
SS
× V
SS
) + (I
LOGIC
× V
LOGIC
).
8
All dynamic characteristics use V
DD
= +15 V, V
SS
= −15 V, and V
LOGIC
= 5 V.
RESISTOR PERFORMANCE MODE CODE RANGE—50 kΩ AND 100 kΩ VERSIONS
Table 4.
R
AB
= 50 kΩ R
AB
= 100 kΩ
|V
DD
− V
SS
| = 26 V to 33 V |V
DD
− V
SS
| = 21 V to 26 V |V
DD
− V
SS
| = 26 V to 33 V |V
DD
− V
SS
| = 21 V to 26 V
Resistor Tolerance
per Code
R
WB
R
WA
R
WB
R
WA
R
WB
R
WA
R
WB
R
WA
1% R-Tolerance
From 0x08C
to 0x3FF
From 0x000
to 0x35F
From 0x0B4
to 0x3FF
From 0x000
to 0x31E
From 0x04B
to 0x3FF
From 0x000
to 0x3B4
From 0x064
to 0x3FF
From 0x000
to 0x39B
2% R-Tolerance
From 0X03C
to 0x3FF
From 0x000
to 0x3C3
From 0x050
to 0x3FF
From 0x000
to 0x3AF
From 0x028
to 0x3FF
From 0x000
to 0x3D7
From 0x028
to 0x3FF
From 0x000
to 0x3D7
3% R-Tolerance
From 0X028
to 0x3FF
From 0x000
to 0x3D7
From 0x032
to 0x3FF
From 0x000
to 0x3CD
From 0x019
to 0x3FF
From 0x000
to 0x3E6
From 0x019
to 0x3FF
From 0x000
to 0x3E6