AD7794BRUZ Analog Devices Inc, AD7794BRUZ Datasheet - Page 6

• Manufacturer Part Number: AD7794BRUZ
• Description: IC ADC 24BIT SIG-DEL 6CH 24TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD7794BRUZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Bits: 24
• Sampling Rate (per Second): 470
• Number Of Converters: 1
• Power Dissipation (max): 2.5mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP (0.173", 4.40mm Width)
• Resolution (bits): 24bit
• Sampling Rate: 470SPS
• Input Channel Type: Differential
• Supply Voltage Range - Analog: 2.7V To 5.25V
• Supply Voltage Range - Digital: 2.7V To 5.25V
• Number Of Elements: 1
• Resolution: 24Bit
• Architecture: Delta-Sigma
• Sample Rate: 0.47KSPS
• Input Polarity: Bipolar
• Input Type: Voltage
• Rated Input Volt: ±2.5V
• Differential Input: Yes
• Power Supply Requirement: Single
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.25V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Power Dissipation: 2.5mW
• Integral Nonlinearity Error: ±15ppm of FSR
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 24
• Package Type: TSSOP
• Input Signal Type: Differential
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7794EBZ - BOARD EVALUATION FOR AD7794
• Lead Free Status / Rohs Status: Compliant

AD7794/AD7795
Parameter
BIAS VOLTAGE GENERATOR
TEMPERATURE SENSOR
LOW-SIDE POWER SWITCH
DIGITAL OUTPUTS (P1 and P2)
INTERNAL/EXTERNAL CLOCK
LOGIC INPUTS
V
V
Accuracy
Sensitivity
R
Allowable Current
V
V
V
V
Internal Clock
External Clock
CS
SCLK (Schmitt-Triggered Input),
CLK, and DIN
Input Currents
Input Capacitance
ON
BIAS
BIAS
OH
OL
OH
OL
Frequency
Duty Cycle
Frequency
Duty Cycle
V
V
AD7794B/AD7795B
AD7794C
2
, Output Low Voltage
, Output Low Voltage
, Output High Voltage
, Output High Voltage
INL
INH
Generator Start-Up Time
V
V
V
V
V
V
V
V
V
V
V
V
, Input Low Voltage
, Input High Voltage
T
T
T
T
T
T
T
T
T
T
T
T
(+)
(−)
(+) to V
(+)
(−)
(+) to V
(+)
(−)
(+) to V
(+)
(−)
(+) to V
1
2
2
T
T
T
T
(−)
(−)
(−)
(−)
2
2
2
2
2
AD7794/AD7795
AV
±2
0.81
7
9
30
AV
0.4
4
0.4
64 ± 3%
50:50
64
45:55 to 55:45
0.8
0.4
2.0
1.4/2
0.8/1.7
0.1/0.17
0.9/2
0.4/1.35
0.06/0.13
1.35/2.05
0.8/1.9
0.1/0.19
0.9/2
0.4/1.35
0.06/0.15
±10
10
DD
DD
/2
− 0.6
Rev. D | Page 6 of 36
V nom
ms/nF typ
°C typ
mV/°C typ
Ω max
Ω max
mA max
V min
V max
V min
V max
kHz
min/max
% typ
kHz nom
% typ
V max
V max
V min
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
μA max
pF typ
Unit
Test Conditions/Comments
Dependent on the capacitance connected to AIN;
See Figure 11
Applies if user calibrates the temperature sensor
AV
AV
Continuous current
AV
AV
AV
AV
A 128 kHz external clock can be used if the divide-by-2
function is used (Bit CLK1 = CLK0 = 1)
Applies for external 64 kHz clock, a 128 kHz clock can
have a less stringent duty cycle
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
DV
V
All digital inputs
IN
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= DV
= 5 V
= 3 V
= 3 V, I
= 3 V, I
= 5 V, I
= 5 V, I
= 5 V
= 3 V
= 3 V or 5 V
= 5 V
= 5 V
= 5 V
= 3 V
= 3 V
= 3 V
= 5 V
= 5 V
= 5 V
= 3 V
= 3 V
= 3 V
DD
or GND
SOURCE
SINK
SOURCE
SINK
= 100 μA
= 800 μA
= 100 μA
= 200 μA