Texas Instruments PGA870 Product Info

Parameters

PGA/VGA	PGA
Number of channels	1
Vs (min) (V)	4.75
Vs (max) (V)	5.25
Input type	Differential
Output type	Differential
Interface type	Digital Gain Set
BW at Acl (MHz)	650
Acl, min spec gain (V/V)	0.27
Voltage gain (min) (V/V)	0.27
Voltage gain (max) (V/V)	10
Gain (max) (dB)	20
Architecture	Fully Differential ADC Driver
Features	Shutdown, Single-ended to Differential conversion
Vos (offset voltage at 25°C) (typ) (mV)	5
Input voltage noise (typ) (µV√Hz)	0.03
Slew rate (typ) (V/µs)	2900
Iq per channel (typ) (mA)	143
Rating	Catalog
Operating temperature range (°C)	-40 to 85

Package

VQFN (RHD)-28-25 mm² 5 x 5

Features

Wideband +5-V Operation: 650-MHz Bandwidth
Low Impedance, Voltage Mode Output
Wide Gain Range: –11.5 dB to +20 dB
Precise 0.5-dB Gain Steps
Step-to-Step Gain Error = ±0.03 dB
HD₂: –93 dBc at 100 MHz
HD₃: –88 dBc at 100 MHz
IMD₃: –98 dBc at 100 MHz, –95 dBc at 200 MHz
OIP3: +47 dBm at 100 MHz;
Exceeds +45 dBm for Frequencies to 300 MHz
Flexible Gain Control Interface:
- Supports latched and unlatched options
- Gain may be set in power-down state
- Fast setup and hold times: 2.5 ns
Low Disable Current: 2 mA
Pb-Free (RoHS-Compliant) and Green Package
APPLICATIONS

Programmable Gain IF Amplifier:
- Differential signal chains
- Single-ended to differential conversion
Fast Gain Control Loops for:
- Test/measurement
- Digital radio signal chains
ADC Driver for Wireless Base Station Signal Chains: GSM, WCDMA, MC-GSM
Radar/Ranging Systems

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Wideband +5-V Operation: 650-MHz Bandwidth
Low Impedance, Voltage Mode Output
Wide Gain Range: –11.5 dB to +20 dB
Precise 0.5-dB Gain Steps
Step-to-Step Gain Error = ±0.03 dB
HD₂: –93 dBc at 100 MHz
HD₃: –88 dBc at 100 MHz
IMD₃: –98 dBc at 100 MHz, –95 dBc at 200 MHz
OIP3: +47 dBm at 100 MHz;
Exceeds +45 dBm for Frequencies to 300 MHz
Flexible Gain Control Interface:
- Supports latched and unlatched options
- Gain may be set in power-down state
- Fast setup and hold times: 2.5 ns
Low Disable Current: 2 mA
Pb-Free (RoHS-Compliant) and Green Package
APPLICATIONS

Programmable Gain IF Amplifier:
- Differential signal chains
- Single-ended to differential conversion
Fast Gain Control Loops for:
- Test/measurement
- Digital radio signal chains
ADC Driver for Wireless Base Station Signal Chains: GSM, WCDMA, MC-GSM
Radar/Ranging Systems

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Description

The PGA870 is a wideband programmable-gain amplifier (PGA) for high-speed signal chain and data acquisition systems. The PGA870 has been optimized to provide high bandwidth, low distortion, and low noise, making it ideally suited as a 14-bit analog-to-digital converter (ADC) driver for wireless base station signal chain applications. The wide gain range of –11.5 dB to +20 dB can be adjusted in 0.5-dB gain steps through a 6-bit control word applied to the parallel interface. The gain control interface may be configured as a level-triggered latch or an edge-triggered latch, or it may be placed in an unlatched (transparent) mode. In addition to the 6-bit gain control, the PGA870 contains a power-down pin (PD) that can be used to put the device into a low-current, power-down mode. In this mode, the quiescent current drops to 2 mA, but the gain control circuitry remains active, allowing the gain of the PGA870 to be set before device power-up. The PGA870 is offered in a QFN-28 PowerPAD™ package.

ELECTRONIC COMPONENTS
All In One Distributor

PGA870

High-Speed Fully Differential Programmable Gain Amplifier

Texas Instruments PGA870 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

PGA870

High-Speed Fully Differential Programmable Gain Amplifier

Texas Instruments PGA870 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor