PGA112AIDGSR datasheet(4/47 Pages) TI

Part #	PGA112AIDGSR

Description	Zero-Drift,PROGRAMMABLE GAIN AMPLIFIER with MUX

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Manufacturer	TI [Texas Instruments]

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PGA112

,, PGA113

PGA116, PGA117

SBOS424B – MARCH 2008 – REVISED SEPTEMBER 2008 ............................................................................................................................................ www.ti.com

ELECTRICAL CHARACTERISTICS: VS = AVDD = DVDD = +5V (continued)

Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.

At TA = +25°C, RL = 10kΩ//CL = 100pF connected to DVDD/2, and VREF = GND, unless otherwise noted.

PGA112, PGA113, PGA116, PGA117

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

OUTPUT

Voltage Output Swing from Rail

IOUT = ±0.25mA, AVDD ≥ DVDD

(6)

GND + 0.05

DVDD – 0.05

V

IOUT = ±5mA, AVDD ≥ DVDD

(6)

GND + 0.25

DVDD – 0.25

V

DC Output Nonlinearity

VOUT = GND + 85mV to DVDD – 85mV

(7)

0.0015

%FSR

Short-Circuit Current

ISC

–30/+60

mA

Capacitive Load Drive

CLOAD

See Typical Characteristics

NOISE

Input Voltage Noise Density

en

f > 10kHz, CL = 100pF, VS = 5V

12

nV/

√Hz

f > 10kHz, CL = 100pF, VS = 2.2V

22

nV/

√Hz

Input Voltage Noise

en

f = 0.1Hz to 10Hz, CL = 100pF, VS = 5V

0.362

µV

PP

f = 0.1Hz to 10Hz, CL = 100pF, VS = 2.2V

0.736

µV

PP

Input Current Density

In

f = 10kHz, CL = 100pF

400

fA/

√Hz

SLEW RATE

Slew Rate

SR

See Table 1

V/

µs

SETTLING TIME

Settling Time

tS

See Table 1

µs

FREQUENCY RESPONSE

Frequency Response

See Table 1

MHz

THD + NOISE

G = 1, f = 1kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.003

%

G = 10, f = 1kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.005

%

G = 50, f = 1kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.03

%

G = 128, f = 1kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.08

%

G = 200, f = 1kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.1

%

G = 1, f = 20kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.02

%

G = 10, f = 20kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.01

%

G = 50, f = 20kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.03

%

G = 128, f = 20kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.08

%

G = 200, f = 20kHz, VOUT = 4VPP at 2.5VDC, CL = 100pF

0.11

%

POWER SUPPLY

Operating Voltage Range

(6)

AVDD

2.2

5.5

V

DVDD

2.2

5.5

V

Quiescent Current Analog

IQA

IO = 0, G = 1, VOUT = VREF

0.33

0.45

mA

Over Temperature, –40°C to +125°C

0.45

mA

IO = 0, G = 1, VOUT = VREF, SCLK at 10MHz,

Quiescent Current Digital

(8) (9) (10)

IQD

0.75

1.2

mA

CS = Logic 0, DIO or DIN = Logic 0

IO = 0, G = 1, VOUT = VREF, SCLK at 10MHz,

Over Temperature, –40°C to +125°C

(8) (9) (10)

1.2

mA

CS = Logic 0, DIO or DIN = Logic 0

Shutdown Current Analog + Digital

(8) (9)

ISDA + ISDD

IO = 0, VOUT = VREF, G = 1, SCLK Idle

4

µA

IO = 0, VOUT = 0, G = 1, SCLK at 10MHz,

245

µA

CS = Logic 0, DIO or DIN = Logic 0

POWER-ON RESET (POR)

Digital interface disabled and Command Register set to POR

POR Trip Voltage

1.6

V

values for DVDD < POR Trip Voltage

(6)

When AVDD is less than DVDD, the output is clamped to AVDD + 300mV.

(7)

Measurement limited by noise in test equipment and test time.

(8)

Does not include current into or out of the VREF pin. Internal RF and RI are always connected between VOUT and VREF.

(9)

Digital logic levels: DIO or DIN = logic 0. 10

µA internal pull-down current source.

(10) Includes current from op amp output structure.

4

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Product Folder Link(s): PGA112 PGA113 PGA116 PGA117

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