AD7537KRZ View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD7537KRZ Datasheet PDF : 10 Pages
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AD7537–SPECIFICATIONS (VDD = +12 V to +15 V, ؎10%, VREFA = VREFB = 10 V; IOUTA = AGND = 0 V,
IOUTB = AGNDB = 0 V. All specifications TMIN to TMAX unless otherwise noted.)
Parameter
ACCURACY
Resolution
Relative Accuracy
Differential Nonlinearity
Gain Error
Gain Temperature Coefficient2;
ΔGain/ΔTemperature
Output Leakage Current
IOUTA
+25°C
TMIN to TMAX
IOUTB
+25°C
TMIN to TMAX
REFERENCE INPUT
Input Resistance
VREFA, VREFB
Input Resistance Match
DIGITAL INPUTS
VIH (lnput High Voltage)
VIIL (Input Low Voltage)
IIN (Input Current)
+25°C
TMIN to TMAX
CIN (lnput Capacitance)2
POWER SUPPLY3
VDD
IDD
J, A
K, B
L, C
S
T
U
Versions Versions Versions Version Version Version Units
Test Conditions/Comments
12
12
12
12
12
12
Bits
±1
± 1/2
± 1/2
±1
± 1/2
± 1/2
LSB max
±1
±1
±1
±1
±1
±1
LSB max All grades guaranteed mono-
tonic over temperature.
±6
±3
±1
±6
±3
±2
LSB max Measured using RFBA, RFBB.
Both DAC registers loaded
with all 1s.
±5
±5
±5
±5
±5
±5
ppm/°C max Typical value is 1 ppm/°C
10
10
10
10
10
10
nA max
DAC A Register loaded
150
150
150
250
250
250
nA max
with all 0s
10
10
10
10
10
10
nA max
DAC B Register loaded
150
150
150
250
250
250
nA max
with all 0s
9
9
9
9
9
9
kΩ min
Typical Input Resistance = 14 kΩ
20
20
20
20
20
20
kΩ max
±3
±3
±1
±3
±3
±1
% max
Typically ±0.5%
2.4
2.4
2.4
2.4
2.4
2.4
V min
0.8
0.8
0.8
0.8
0.8
0.8
V max
±1
±1
±1
±1
±1
±1
μA max
VIN = VDD
± 10
± 10
± 10
± 10
± 10
± 10
μA max
10
10
10
10
10
10
pF max
10.8/16.5 10.8/16.5 10.8/16.5 10.8/16.5 10.8/16.5 10.8/16.5 V min/V max
2
2
2
2
2
2
mA max
AC PERFORMANCE CHARACTERISTICS
These characteristics are included for Design Guidance only and are not subject to test.
(VDD = +12 V to +15 V; VREFA = VREFB = +10 V; IOUTA = AGNDA = 0 V, IOUTB = AGNDB = 0 V. Output Amplifiers are AD644 except where noted.)
Parameter
Output Current Settling Time
TA = +25؇C
1.5
TA = TMIN, TMAX Units
μs max
Test Conditions/Comments
To 0.01% of full-scale range. IOUT load = 100 Ω, CEXT = 13 pF.
DAC output measured from falling edge of WR.
Typical Value of Settling Time is 0.8 μs.
Digital-to-Analog Glitch lmpulse 7
AC Feedthrough4
VREFA to IOUTA
VREFB to IOUTB
Power Supply Rejection
ΔGain/ΔVDD
Output Capacitance
COUTA
COUTB
COUTA
COUTB
Channel-to-Channel Isolation
VREFA to IOUTB
VREFB to IOUTA
–70
–70
± 0.01
70
70
140
140
–84
–84
–65
–65
± 0.02
70
70
140
140
nV-s typ
dB max
dB max
Measured with VREFA = VREFB = 0 V. IOUTA, IOUTB load = 100 Ω,
CEXT = 13 pF. DAC registers alternately loaded with all 0s and all 1s.
VREFA, VREFB = 20 V p-p 10 kHz sine wave.
DAC registers loaded with all 0s.
% per % max ΔVDD = VDD max – VDD min
pF max
pF max
pF max
pF max
DAC A, DAC B loaded with all 0s
DAC A, DAC B loaded with all 1s
dB typ
dB typ
VREFA = 20 V p-p 10 kHz sine wave, VREFB = 0 V.
Both DACs loaded with all 1s.
VREFB = 20 V p-p 10 kHz sine wave, VREFA = 0 V.
Both DACs loaded with all 1s.
Digital Crosstalk
7
Output Noise Voltage Density
25
(10 Hz–100 kHz)
nV-s typ
nV/√Hz typ
Measured for a Code Transition of all 0s to all 1s.
IOUTA, IOUTB load = 100 Ω, CEXT = 13 pF.
Measured between RFBA and IOUTA or RFBB and IOUTB.
Frequency of measurement is 10 Hz–100 kHz.
Total Harmonic Distortion
–82
NOTES
1Temperature range as follows:
J, K, L Versions: –40°C to +85°C;
A, B, C Versions: –40°C to +85°C;
S, T, U Versions: –55°C to +125°C
Specifications subject to change without notice.
dB typ
VIN = 6 V rms, 1 kHz. Both DACs loaded with all 1s.
2Sample tested at +25°C to ensure compliance.
3Functional at VDD = 5 V, with degraded specifications.
4Pin 12 (DGND) on ceramic DIPs is connected to lid.
–2–
REV. A
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