Data Sheet AD7541A
Rev. C | Page 3 of 13
SPECIFICATIONS
V
DD
= 15 V, V
REF
= 10 V, OUT 1 = OUT 2 = GND = 0 V, unless otherwise noted. Temperature range is as follows for the J version and the
K version: 0°C to +70°C.
Table 1.
Parameter Version T
A
= 25°C T
A
= T
MIN
, T
MAX
Unit Test Conditions/Comments
Resolution All 12 12 Bits
Relative Accuracy J ±1 ±1 LSB max ±1 LSB = ±0.024% of full scale
K ±1/2 ±1/2 LSB max ±1/2 LSB = ±0.012% of full scale
Differential Nonlinearity J ±1 ±1 LSB max All grades guaranteed monotonic to
12 bits, T
MIN
to T
MAX
.
Gain Error J ±6 ±8 LSB max Measured using internal R
FEEDBACK
and
includes effect of leakage current and gain
temperature coefficient (TC); gain error can
be trimmed to zero
K ±3 ±5 LSB max
Gain TC
1
ΔGain/ΔTemperature All 5 5 ppm/°C max Typical value is 2 ppm/°C
Output Leakage Current
OUT 1 (Pin 1) J, K ±5 ±10 nA max All digital inputs = 0 V
OUT 2 (Pin 2) J, K ±5 ±10 nA max All digital inputs = V
DD
REFERENCE INPUT
Input Resistance (Pin 17 to
GND)
All 7 to 18 7 to 18 kΩ min/max Typical input resistance = 11 kΩ; typical
input resistance TC = −300 ppm/°C
DIGITAL INPUTS
Input Voltage
High, V
IH
All 2.4 2.4 V min
Low, V
IL
All 0.8 0.8 V max
IN
Logic inputs are MOS gates;
I
IN
typical (25°C) = 1 nA
Input Capacitance, C
IN
1
All 8 8 pF max V
IN
= 0 V
POWER SUPPLY REJECTION
ΔGain/ΔV
DD
All ±0.01 ±0.02 % per % max ΔV
DD
= ±5%
POWER SUPPLY
DD
Accuracy is not guaranteed over this range
I
DD
All 2 2 mA max All digital inputs V
IL
or V
IH
100 500 µA max All digital inputs 0 V or V
DD
1
Guaranteed by design but not production tested.
