AD7244 Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
AD7244 Datasheet PDF : 12 Pages
| |||
AD7242/AD7244–SPECIFICATIONS (VDD = +5 V ؎ 5% VSS = –5 V ؎ 5%, AGND = DGND = 0 V, REF INA =
REF INB = +3 V. VOUTA, VOUTB load to AGND: RL = 2 k⍀, CL = 100 pF.
All Specifications TMIN to TMAX unless otherwise noted.)
Parameter
AD7242
J, A Versions1 K, B Versions1 Units
Test Conditions/Comments
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Bipolar Zero Error
Positive Full-Scale Error2
Negative Full-Scale Error2
REFERENCE OUTPUT3
REF OUT @ +25°C
TMIN to TMAX
REF OUT Tempco
Reference Load Change
(∆REF OUT vs. ∆I)
12
±1
±1
±5
±5
±5
2.99/3.01
2.98/3.02
35
–1
12
± 1/2
±1
±5
±5
±5
2.99/3.01
2.98/3.02
35
–1
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
Guaranteed Monotonic
V min/V max
V min/V max
ppm/°C typ
mV max
Reference Load Current Change (0 µA–500 µA)
REFERENCE INPUTS
REF INA, REF INB Input Range
Input Current
2.85/3.15
1
LOGIC INPUTS
(LDACA, LDACB, TFSA, TFSB,
TCLKA, TCLKB, DTA, DTB)
Input High Voltage, VINH
2.4
Input Low Voltage, VINL
0.8
Input Current, IIN
± 10
Input Capacitance, CIN4
10
ANALOG OUTPUTS
(VOUTA, VOUTB)
Output Voltage Range
±3
DC Output Impedance
0.1
Short Circuit Current
20
AC CHARACTERISTICS4
Voltage Output Settling Time
Positive Full-Scale Change
3
Negative Full-Scale Change
3
Digital-to-Analog Glitch Impulse 10
Digital Feedthrough
2
Channel-to-Channel Isolation
110
POWER REQUIREMENTS
VDD
+5
VSS
–5
IDD
27
ISS
15
Total Power Dissipation
195
2.85/3.15
1
2.4
0.8
± 10
10
±3
0.1
20
3
3
10
2
110
+5
–5
27
15
195
V min/V max 3 V ± 5%
µA max
V min
V max
µA max
pF max
VDD = 5 V ± 5%
VDD = 5 V ± 5%
VIN = 0 V to VDD
V nom
Ω typ
mA typ
µs max
µs max
nV secs typ
nV secs typ
dB typ
Settling Time to Within ± 1/2 LSB of Final Value
Typically 2 µs
Typically 2 µs
DAC Code Change All 1s to All 0s
VOUT = 10 kHz Sine Wave
V nom
V nom
mA max
mA max
mW max
± 5% for Specified Performance
± 5% for Specified Performance
Cumulative Current from the Two VDD Pins
Cumulative Current from the Two VSS Pins
Typically 130 mW
NOTES
1Temperature ranges are as follows: J, K Versions: –40°C to +85°C; A, B Versions: –40°C to +85°C.
2Measured with respect to REF IN and includes bipolar offset error.
3For capacitive loads greater than 50 pF, a series resistor is required (see Internal Reference section).
4Sample tested @ +25°C to ensure compliance.
Specifications subject to change without notice.
AD7242 ORDERING GUIDE
Model
Temperature
Range
Integral
Nonlinearity
Package
Option*
AD7242JN
AD7242KN
AD7242JR
AD7242KR
AD7242AQ
AD7242BQ
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
± 1 LSB max
± 1/2 LSB max
± 1 LSB max
± 1/2 LSB max
± 1 LSB max
± 1/2 LSB max
*N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC).
N-24
N-24
R-28
R-28
Q-24
Q-24
–2–
REV. A
Share Link: 